标准编号:	GB/T 39733-2020
中文名称:	再生钢铁原料
英文名称:	Recycling iron-steel materials
中标分类:	H40    钢铁产品综合
行业分类:	GB    国家标准
ICS分类:	77.140.01 77.140.01    钢铁产品综合 77.140.01
发布机构:	国家市场监督管理总局 国家标准化管理委员会
发布日期:	2020-12-14
实施日期:	2021-1-1
标准状态:	superseded
被新标准替代:	GB/T 39733-2024 再生钢铁原料
被替代日期:	2025-6-1
翻译语言:	英文
文件格式:	PDF
中文字符数:	22000 字
翻译价格(元):	750.0
交付时间:	付款后 1 个工作日

Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative. This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents. This document was proposed by China Iron and Steel Association. This standard is under the jurisdiction of National Technical Committee on Pig Iron and Iron Alloy of Standardization Administration of China (SAC/TC 318). Recycling iron-steel materials 1 Scope This standard specifies the classification, technical requirements, inspection methods, acceptance rules, transportation and quality certificate of recycling iron-steel materials. This standard is applicable to recycling iron-steel materials used as iron furnace burden materials in iron-making, steel-making, casting and iron alloy smelting. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB 5085.1 Identification standards for hazardous wastes - Identification for corrosivity GB 5085.2 Identification standards for hazardous wastes - Screening test for acute toxicity GB 5085.3 Identification standards for hazardous wastes - Identification for extraction toxicity GB 5085.4 Identification standards for hazardous wastes - Identification for ignitability GB.5085.5 Identification standards for hazardous wastes - Identification for reactivity GB 5085.6 Identification standards for hazardous wastes - Identification for toxic substance content GB/T 5202 Radiation protection instrumentation - Alpha, beta and alpha/beta (beta energy >60keV) contamination meters and monitors GB/T 8170 Rules of rounding off for numerical values & expression and judgment of limiting values GB 18871 Basic standards for protection against ionizing radiation and for the safety of radiation sources GB/T 12162.3 X and gamma reference radiation for calibrating dosemeters and doserate meters and for determining their response as a function of photon energy - Part 3: Calibration of area and personal dosemeters and the measurement of their response as a function of energy and angle of incidence 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 recycling raw materials iron-steel products or scraps that have lost their original use value or have been abandoned although have not lost their use value 3.2 recycling iron-steel materials furnace burden which is obtained through the classification and processing of recycling raw materials and may be directly put into a furnace for use as iron 3.3 radioactive materials radioactive substances or radioactive sources contained in recycling iron-steel materials 3.4 explosive materials materials carried by recycling iron-steel materials, such as weapons, ammunition, inflammable and explosive materials, explosives, etc. 3.5 carried-waste non-metallic substances mixed into recycling iron-steel materials in the process of production, collection, packaging and transportation, including wood waste, waste paper, waste plastics, waste rubber, waste glass, stones and powdery substances with a particle size of not greater than 2mm (such as dust, sludge, sawdust, fiber dust, etc.), but excluding packaging materials and other substances used in transportation 3.6 bulk density mass of recycling iron-steel materials per cubic meter 3.7 size physical dimensions of recycling iron-steel materials, i.e. length, width, height, thickness or diameter Note: Generally, the unit of measurement is millimeters. 3.8 dismantling processing which is used to decompose the recycled iron-steel products such as machinery and equipment, building materials and steel structures into a certain size, so that the recycling iron-steel materials are suitable for transportation, production and use 3.9 sorting process of classifying, screening and separating the recycled iron-steel products from other substances according to the requirements of chemical composition, size and use to become a specific category of recycling iron-steel materials 3.10 cutting processing of cutting or shearing the recycled iron-steel products to become recycling iron-steel materials with size meeting requirements 3.11 shredding processing of recycled iron-steel products into shredded recycling iron-steel materials by professional equipment 3.12 bundling processing of pressing and molding the recycled iron-steel products into bundled recycling iron-steel materials by professional equipment 4 Classification 4.1 Category and code Recycling iron-steel materials may be classified into seven categories according to their shapes and chemical compositions through different processing methods, i.e. heavy recycling iron-steel materials, medium recycling iron-steel materials, light recycling iron-steel materials, shredded recycling iron-steel materials, bundled recycling iron-steel materials, alloy recycling iron-steel materials and cast recycling iron-steel materials. See Table A for category, code and designation of recycling iron-steel materials, and see Annex A for typical photos. Table 1 Category, code and designation of recycling iron-steel materials Category Abbreviation Code Designation heavy recycling iron-steel materials HRS 101 HRS101 102 HRS102 medium recycling iron-steel materials MRS 201 MRS201 202 MRS202 light recycling iron-steel materials LRS 301 LRS301 302 LRS302 303 LRS303 shredded recycling iron-steel materials SRS 401 SRS401 402 SRS402 403 SRS403 bundled recycling iron-steel materials BRS 501 BRS501 502 BRS502 503 BRS503 alloy recycling iron-steel materials ARS 601 ARS601 602 ARS602 603 ARS603 cast recycling iron-steel materials CRS 701 CRS701 702 CRS702 4.2 Classification requirements See Table 2 for classification requirements of recycling iron-steel materials, and see Annex B for characteristic attributes. Table 2 Classification requirements of recycling iron-steel materials Category Designation Size Material source and typical example Main processing method General source Typical example Heavy recycling iron-steel materials HRS101 1. Size: solids with a thickness ≥6.0mm or a diameter ≥10mm, a length ≤1,500mm, a width ≤600mm; 2. Unit weight ≤1,500kg Solids with a thickness of greater than 6.0mm or a diameter of greater than 10mm, and iron-steel products decommissioned after a certain service life: 1) various scrapped large equipment; 2) scrapped railway equipment and materials; 3) various scrapped large steel structures; 4) various scrapped large ships, etc. 1. Large machine tools, industrial and mining machinery, etc.; 2. Various large parts and components, steel castings, etc.; 3. Railway components such as rails, wheels, axles, carriages and guide rails; 4. Various steel structures, steel pipes, profile steel, plates and worn steels; 5. Various worn steel plates, profile steel, pipes, machine parts and components, etc. produced by ship dismantling or maintenance Sorting, dismantling and cutting HRS102 Solids with a thickness of greater than 6.0mm or a diameter of greater than 10mm, leftover or tailings formed during production or processing: 1) cutting heads and tails, defective products and degraded products generated during steel production; 2) leftover or tailings formed in the processing of various steels 1. Cutting heads and tails of steel ingot or billet; 2. Defective steel billet; 3. Cutting edge, head and tail during steel plate rolling; 4. Leftover or tailings generated in the processing of various steels (profile steel, round steel, angle steel, steel plate, etc.); 5. Leftover or tailings generated after stamping of steel plate Sorting and cutting Medium recycling iron-steel materials MRS201 1. Size: solids with a thickness ≥4.0mm or a diameter ≥8mm, a length ≤1,500mm, a width ≤600mm; 2. Unit weight ≤1,500kg Solids with a thickness of greater than 4.0mm or a diameter of greater than 8mm, and iron-steel products decommissioned after a certain service life: 1) various scrapped small and medium equipment; 2) various scrapped medium steel structures; 3) various scrapped small and medium ships, etc. 1. Small and medium machine tools, industrial and mining machinery, etc.; 2. Various small and medium parts and components, steel castings, etc.; 3. Various small and medium steel structures, steel pipes, profile steel, plates and worn steels; 4. Various worn steel plates, profile steel, pipes, machine parts and components, etc. produced by dismantling or maintenance of small and medium ships Sorting, dismantling and cutting MRS202 Solids with a thickness of greater than 4.0mm or a diameter of greater than 8mm; various leftover or tailings formed during the processing of various steels 1. Leftover or tailings generated in the processing of various steels (profile steel, round steel, angle steel, steel plate, etc.); 2. Leftover or tailings generated after stamping of steel plate Sorting and cutting Light recycling iron-steel materials LRS301 1. Size: thickness ≥2.0mm; length ≤1,500mm; width ≤600mm; 2. Unit weight ≤1,500kg Iron-steel products with a thickness of greater than 2.0mm and decommissioned after a certain service life: 1) various scrapped small equipment; 2) various scrapped small motor vehicles or electric vehicle frames 1. Various scrapped small equipment, such as machine tools and machines; 2. Various scrapped parts and components, etc.; 3. Various motorcycle frames, electromobile frames, bicycle frames, electric vehicle frames, etc.; 4. Iron cores dismantled from various light-weight steel, household hardware and generators; 5. Various worn steel plates, profile steel, pipes, machine parts and components, etc. produced by ship dismantling or maintenance Sorting, dismantling and cutting LRS302 Various leftover or tailings with a thickness of greater than 2.0mm formed during the processing of various steels 1. Leftover or tailings generated in the processing of various steels (profile steel, round steel, angle steel, steel plate, etc.); 2. Leftover or tailings of silicon steel sheet; 3. Leftover or tailings generated after stamping of steel plate Sorting and cutting LRS303 1. Size: thickness ≤2.0mm; length ≤1,500mm; width ≤600mm; 2. Unit weight ≤1,500kg New materials with a thickness of less than 2.0mm formed during the processing of various steels Leftover or tailings generated during the processing of automobile sheet and household appliance plates, etc. Sorting and cutting Shredded recycling iron-steel materials SRS401 Bulk density: ≥0.8t/m3, as agreed by the supplier and the demander Recycled automobile dismantling materials Automobile disassembling materials Sorting, disassembling and shredding SRS402 Use small or other recycled materials with a thickness of less than 2.0mm as raw materials 1. Recycled household appliances; 2. Machine parts; 3. Various small equipment; 4. Coated steel plates, color steel tiles, etc. Sorting and shredding SRS403 Industrial processing leftover 1. Leftover or tailings generated by automobile sheet processing; 2. Leftover or tailings generated by other single plates such as household appliances plates Sorting and shredding Bundled recycling iron-steel materials BRS501 1. Size: length ≤1,500mm; width ≤1,000mm; height ≤1,000mm; 2. Unit weight ≤2,000kg Use leftover or tailings generated by processing of automobile sheet or other plates 1. Leftover or tailings generated after stamping of automobile sheets 2. Leftover of household appliances plates; 3. Leftover or tailings of silicon steel sheet; 4. Leftover or tailings of other processed products Sorting and bundling BRS502 Recycled worn steel bars (threads, wires) Bundle and mold the recycled worn steel bars (screw-thread steel and wire) Sorting and bundling BRS503 Steel shavings and chips produced during steel machining Steel shavings, chips, etc. produced during steel machining Bundling and bagging Alloy recycling iron-steel materials ARS601 Nickel-chromium stainless steel recycled parts or processing leftover with a nickel (Ni) content of not less than 7.0% 1. Nickel-chromium stainless steel recycled parts, such as recycled stainless steel parts in machines, equipment, instruments and structural parts; 2. Leftover or tailings formed during the processing of nickel-chromium stainless steel; 3. Various nickel-chromium stainless steel plates, pipes and machine parts and components, etc. produced by ship dismantling or maintenance Sorting, cutting and bundling ARS602 1. Size: length ≤1,500mm; width ≤1,000mm; 2. Unit weight ≤1,500kg Chromium stainless steel recycled parts or processing leftover, with a chromium (Cr) content of not less than 11.5% 1. Chromium stainless steel recycled parts, such as recycled stainless steel parts of machines, equipment, instruments, structural parts, etc.; 2. Leftover or tailings formed during the processing of chromium stainless steel Sorting, cutting and bundling ARS603 Use recycled alloy steel as raw materials: 1) out-of-service recycled parts, such as tool steel, die steel, bearing steel, gear steel, high temperature alloy, etc.; 2) leftover bits and pieces generated during processing; 3) shavings and alloy steel scraps produced by machining 1. Use tool steel, die steel, bearing steel, gear steel, high temperature alloy, etc. as raw materials; 2. Leftover or tailings generated by alloy steel processing Sorting, cutting, bundling and bagging Cast recycling iron-steel materials CRS701 1. Size: thickness ≥2.0mm; length ≤1,500mm; width ≤600mm; 2. Unit weight ≤1,500kg Cast iron products with a thickness of greater than 2.0mm and decommissioned after a certain service life: 1) various recycled cast iron equipment; 2) various recycled small cast iron products 1. Various recycled small cast iron equipment; 2. Various recycled cast iron parts and components; 3. Various recycled small cast iron products, etc. Sorting, dismantling and cutting CRS702 Various leftover or tailings with a thickness of greater than 2.0mm formed during processing of cast iron parts Leftover or tailings produced after casting production and processing Sorting and cutting 4.3 Processing method See Figures 1~7 for the processing flow diagrams of different categories of recycling iron-steel materials. Figure 1 Schematic diagram for processing classification of heavy recycling iron-steel materials Figure 2 Schematic diagram for processing classification of medium recycling iron-steel materials Figure 3 Schematic diagram for processing classification of light recycling iron-steel materials Figure 4 Schematic diagram for processing classification of shredded recycling iron-steel materials Figure 5 Schematic diagram for processing classification of bundled recycling iron-steel materials Figure 6 Schematic diagram for processing classification of alloy recycling iron-steel materials Figure 7 Schematic diagram for processing classification of cast recycling iron-steel materials 5 Technical requirements 5.1 Storage requirements Recycling iron-steel materials shall be stored in different categories. 5.2 Radioactive materials The control of radioactive materials shall meet the following requirements: a) the radioactive materials shall not be mixed with radioactive substances; b) the penetrating radiation dose rate from external exposure of materials (including packaging materials) shall not exceed the local normal natural radiation background value +0.25μGy/h; c) the α or β radioactive contamination level on the material surface are as follows: the mean value of the maximum detection level of 300cm2 in any part of the surface does not exceed 0.04Bq/cm2 for α, and not exceed 0.4Bq/cm2 for β. 5.3 Explosive materials Recycling iron-steel materials shall not be mixed with explosive materials. 5.4 Hazardous waste The mixing of the following hazardous wastes in recycling iron-steel materials shall be strictly limited: a) wastes specified in National catalogue of hazardous wastes; b) other hazardous wastes with one or more dangerous characteristics such as corrosivity, toxicity, ignitability and reactivity through identification according to GB 5085.1~GB 5085.6. The mass of hazardous wastes in recycling iron-steel materials shall not exceed 0.01% of the total mass.

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Classification 5 Technical requirements 6 Inspection methods 7 Acceptance rules 8 Transportation and quality certificate Annex A (Informative) Typical photos of recycling iron-steel materials Annex B (Informative) Characteristic attribute of recycling iron-steel materials Annex C (Normative) Radioactive materials inspection method Annex D (Informative) Standard for analytical methods of iron-steel products Bibliography

再生钢铁原料 1 范围 本文件规定了再生钢铁原料的分类、技术要求、检验方法、验收规则、运输和质量证明书。 本文件适用于炼铁、炼钢、铸造及铁合金冶炼时作为铁素炉料原料使用的再生钢铁原料。 2 规范性引用文件 下列文件中的内容通过文中的规范性引用而构成本文件必不可少的条款。其中，注日期的引用文件，仅该日期对应的版本适用于本文件；不注日期的引用文件，其最新版本(包括所有的修改单)适用于本文件。 GB 5085.1 危险废物鉴别标准 腐蚀性鉴别 GB 5085.2 危险废物鉴别标准 急性毒性初筛 GB 5085.3 危险废物鉴别标准 浸出毒性鉴别 GB 5085.4 危险废物鉴别标准 易燃性鉴别 GB.5085.5 危险废物鉴别标准 反应性鉴别 GB 5085.6 危险废物鉴别标准 毒性物质含量鉴别 GB/T 5202 辐射防护仪器 α、β和α/β(β能量大于60 keV)污染测量仪与监测仪 GB/T 8170 数值修约规则与极限数值的表示和判定 GB 18871 电离辐射防护与辐射源安全基本标准 GB/T 12162.3 用于校准剂量仪和剂量率仪及确定其能量响应的X和γ参考辐射 第3部分：场所剂量仪和个人剂量计的校准及其能量响应和角响应的测定 3 术语和定义 下列术语和定义适用于本文件。 3.1 回收料 recycling raw materials 丧失原有利用价值或者虽未丧失利用价值但被抛弃或者放弃的钢铁制品或钢铁碎料。 3.2 再生钢铁原料 recycling iron-steel materials 回收料经过分类及加工处理，可以作为铁索资源直接入炉使用的炉料产品。 3.3 放射性污染物 radioactive materials 再生钢铁原料中含有的放射性物质或放射源。 3.4 爆炸性物品 explosive materials 再生钢铁原料夹带的武器弹药、易燃易爆品、爆炸物等物品。 3.5 夹杂物 carried-waste 在产生、收集、包装和运输过程中混入再生钢铁原料中的非金属物质，包括木废料、废纸、废塑料、废橡胶、废玻璃、石块及粒径不大于2 mm的粉状物质(灰尘、污泥、木屑、纤维末等)，但不包括包装物及在运输过程中使用的其他物质。 3.6 堆密度 bulk density 每立方米再生钢铁原料的质量。 3.7 物理规格 size 再生钢铁原料外观物理尺寸：长度、宽度、高度、厚度或直径。 注：一般以毫米作为计量单位. 3.8 拆解 dismantling 将回收的机器设备、建筑材料、钢结构等钢铁制品分解为一定尺寸，使再生钢铁原料适合于运输、生产使用的加工工艺过程。 3.9 分拣 sorting 将回收的钢铁制品按化学成分、物理规格、用途等要求分类筛选以及与其他物质分离，成为特定类别的再生钢铁原料的过程。 3.10 剪切 cutting 将回收的钢铁制品经过切割或剪断，成为物理规格符合要求的再生钢铁原料的工艺过程。 3.11 破碎 shredding 将回收的钢铁制品使用专业设备加工成为破碎型再生钢铁原料的工艺过程。 3.12 打包 bundling 将回收的钢铁制品使用专业设备压制成型成为包块型再生钢铁原料的工艺过程。 4 分类 4.1 类别名称与代号 再生钢铁原料通过不同的加工方式，按外形和化学成分分为7大类。分别为：重型再生钢铁原料、中型再生钢铁原料、小型再生钢铁原料、破碎型再生钢铁原料、包块型再生钢铁原料、合金钢再生钢铁原料、铸铁再生钢铁原料。 再生钢铁原料的类别与代号、牌号见表1，典型照片见附录A。 表1 再生钢铁原料的类别与代号、牌号 类别 英文名称 英文缩写 中文简称 代号 牌号 重型再生钢铁原料 heavy recycling iron-steel materials HRS 重型料 101 HRS101 102 HRS102 中型再生钢铁原料 medium recycling iron-steel materials MRS 中型料 201 MRS201 202 MRS202 小型再生钢铁原料 light recycling iron-steel materials LRS 小型料 301 LRS301 302 LRS302 303 LRS303 破碎型再生钢铁原料 shredded recycling iron-steel materials SRS 破碎料 401 SRS401 402 SRS402 403 SRS403 包块型再生钢铁原料 bundled recycling iron-steel materials BRS 打包料 501 BRS501 502 BRS502 503 BRS503 合金钢再生钢铁原料 alloy recycling iron-steel materials ARS 合金钢料 601 ARS601 602 ARS602 603 ARS603 铸铁再生钢铁原料 cast recycling iron-steel materials CRS 铸铁料 701 CRS701 702 CRS702 4.2 分类要求 再生钢铁原料的分类要求见表2，特征属性见附录B。 表2 再生钢铁原料的分类要求 类别 牌号 物理规格 原料来源及典型实例 主要加工方式 一般来源 典型实例 重型再生钢铁原料 HRS101 1.物理规格：厚度≥6.0 mm或直径≥10 mm的实心体；长度≤1 500 mm；宽度≤600 mm； 2.单重≤1 500 kg 厚度在6.0 mm以上或直径10 mm以上的实心体，一定使用年限后退役的钢铁制品：1)各种报废的大型设备；2)铁路报废设备材料；3)各种报废的大型钢结构件；4)各种报废的大型船舶等 1.大型机床、工矿机械等； 2.各种大型零部件、铸钢件等； 3.钢轨、车轮、车轴、车厢、导轨等铁路器件； 4.各种钢结构、钢管、型钢、板材及各类旧钢材； 5.船舶拆解或维修产生的各种旧钢板、型钢、管材以及机器零部件等 分拣拆解剪切 HRS102 厚度6.0 mm以上或直径10 mm以上的实心体，生产或加工过程中形成的余料或尾料：1)钢铁生产过程中产生的切头切尾、残次品、降级品；2)各种钢材加工过程中形成的余料或尾料 1.钢锭或钢坯的切头、切尾； 2.钢材坯残次品； 3.钢板轧制的切边、切头、切尾； 4.各种钢材(型钢、圆钢、角钢、钢板等)加工过程中产生的余料或尾料； 5.钢板冲压后产生的余料或尾料 分拣剪切 中型再生钢铁原料 MRS201 1.物理规格：厚度≥4.0 mm或直径≥8 mm的实心体；长度≤1 500 mm；宽度≤600 mm； 2.单重≤1 500 kg 厚度在4.0 mm以上或直径8 mm以上的实心体，使用一定年限后退役的钢铁制品：1)各种报废的中小型设备；2)各种报废的中型钢结构件；3)各种报废的中小型船舶等 1.中小型机床、工矿机械等； 2.各种中小型零部件、铸钢件等； 3.各种中小型钢结构、钢管、型钢、板材及各类旧钢材； 4.中小型船舶拆解或维修产生的各种旧钢板、型钢、管材以及机器零部件等 分拣拆解剪切 MRS202 厚度4.0 mm以上或直径8 mm以上的实心体。各种钢材加工过程中形成的余料或尾料 1.各种钢材(型钢、圆钢、角钢、钢板等)加工过程中产生的余料或尾料； 2.钢板冲压后产生的余料或尾料 分拣剪切 小型再生钢铁原料 LRS301 1.物理规格：厚度≥2.0 mm；长度≤1 500 mm；宽度≤600 mm； 2.单重≤1 500 kg 厚度在2.0 mm以上，使用一定年限后退役的钢铁制品：1)各种报废的小型设备；2)各种报废的小型机动车或电动车架 1.各种报废的小型设备如机床、机器等； 2.各种报废的零部件等； 3.各种摩托车架、电瓶车架、自行车架、电动车架等； 4.各种轻骨龙钢、生活五金、发电机拆解的铁芯； 5.船舶拆解或维修产生的各种旧钢板、型钢、管材以及机器零部件等 分拣拆解剪切 LRS302 厚度2.0 mm以上，各种钢材加工过程中形成的余料或尾料 1.各种钢材(型钢、圆钢、角钢、钢板等)加工过程中产生的余料或尾料； 2.硅钢片余料或尾料； 3.钢板冲压后产生的余料或尾料 分拣剪切 LRS303 1.物理规格：厚度≤2.0 mm；长度≤1 500 mm；宽度≤600 mm； 2.单重≤1 500 kg 厚度2.0 mm以下，各种钢材加工过程中形成的新料 汽车板、家电板加工过程中产生的余料或尾料等 分拣剪切 破碎型再生钢铁原料 SRS401 堆密度：≥0.8 t/m3，具体按供需双方商定 回收的汽车拆解料 汽车拆解料 分拣拆解破碎 SRS402 以小型或厚度小于2.0 mm的其他型回收料为原料 1.回收家电； 2.机器零件； 3.各种小型设备； 4.涂镀钢板、彩钢瓦等 分拣破碎 SRS403 工业加工余料 1.汽车板加工余料或尾料； 2.家电板等其他单一的板材加工余料或尾料 分拣破碎 包块型再生钢铁原料 BRSS01 1.物理规格：长≤1 500 mm；宽≤1 000 mm；高≤1 000 mm； 2.单重≤2 000 kg 以汽车板或其他单一品种加工余料或尾料为原料 1.汽车板冲压后产生的余料； 2.家电板余料； 3.硅钢片余料或尾料； 4.其他加工产品余料或尾料 分拣打包 BRSS02 回收的旧钢筋(螺纹、线材) 由回收的旧钢筋(螺纹钢及线材)打包成型 分拣打包 BRSS03 钢材机械加工过程中产生的钢刨花、钢屑 钢材在机械加工过程中产生的钢刨花、钢屑等 打包装袋 合金钢再生锕铁原料 ARS601 镍铬系列不锈钢回收件或加工余料，含镍(Ni)量不小于7.0％ 1.镍铬系不锈钢回收件，如机器、设备、器械、结构件中回收的不锈钢部分； 2.镍铬系不锈钢材加工时形成的余料或尾料； 3.船舶拆解或维修产生的各种镍铬系列不锈钢板、管材以及机器零部件等 分拣剪切打包 ARS602 1.物理规格：长≤1 500 mm；宽≤1 000 mm； 2.单重≤1 500 kg 铬系不锈钢回收件或加工余料：含铬(Cr)量不小于11.5％ 1.铬系不锈钢回收件如机器、设备、器械、结构件等不锈钢部分； 2.铬系不锈钢材加工时形成的余料或尾料 分拣剪切打包 ARS603 回收的合金钢为原料：1)使用失效的工具钢、模具钢、轴承钢、齿轮钢、高温合金等回收件；2)加工过程中产生的边角余料；3)机械加工产生的刨花、合金钢屑 1.以工具钢、模具钢、轴承钢、齿轮钢、高温合金等合金钢为原料； 2.合金钢加工余料或尾料 分拣剪切打包装袋 铸铁再生钢铁原料 CRST01 1.物理规格：厚度≥2.0 mm；长度≤1 500 mm；宽度≤600 mm； 2.单重≤1 500 kg 厚度在2.0 mm以上，使用一定年限后退役的铸铁制品：1)各种回收的铸铁设备；2)各种回收的小型铸铁产品 1.各种回收的小型铸铁设备； 2.各种回收的铸铁零部件； 3.各种回收的小型铸铁产品等 分拣拆解剪切 CRS702 厚度2.0 mm以上，各种铸铁件加工过程中形成的余料或尾料 铸件或铸造生产加工后产生的余料或尾料 分拣剪切 4.3 加工方式 不同类别再生钢铁原料的加工流程示意图见图1～图7。 回收料 分拣、拆解、剪切 重型再生钢铁原科 图1 重型再生钢铁原料加工分类示意图 回收料 分拣、拆解、剪切 中型再生钢铁原料 图2 中型再生钢铁原料加工分类示意图 回收料 分拣、拆解、剪切 小型再生钢铁原料 图3 小型再生钢铁原料加工分类示意图 回收料 分拣、破碎 破碎型再生钢铁原料 图4 破碎型再生钢铁原料加工分类示意图 回收料 分拣、打包 包块型再生钢铁原料 图5 包块型再生钢铁原料加工分类示意图 回收料 分拣、剪切、打包(或装袋) 合金钢再生钢铁原料 图6 合金钢再生钢铁原料加工分类示意图 回收料 分拣、破碎 铸铁再生钢铁原料 图7 铸铁再生钢铁原料加工分类示意图 5 技术要求 5.1 贮存要求 再生钢铁原料应分类存放。 5.2 放射性污染物 放射性污染物控制应符合以下要求： a) 不应混有放射性物质； b) 原料(含包装物)的外照射贯穿辐射剂量率不超过所在地正常天然辐射本底值＋0.25 μGy/h； c) 原料表面α、β放射性污染水平为：表面任何部分的300 cm2的最大检测水平的平均值α不超过0.04 Bq/cm2，β不超过0.4 Bq/cm2。 5.3 爆炸性物品 再生钢铁原料中不应混有爆炸性物品。 5.4 危险废物 再生钢铁原料中应严格限制下列危险废物的混入： a) 《国家危险废物名录》中的废物； b) 依据GB 5085.1～GB 5085.6鉴别标准进行鉴别，凡具有腐蚀性、毒性、易燃性、反应性等一种或一种以上危险特性的其他危险废物。 再生钢铁原料中危险废物的质量不应超过总质量的0.01％。 5.5 夹杂物 再生钢铁原料外观应保持清洁，无明显废纸、废塑料、废纤维等夹杂物，夹杂物的要求应符合表3的规定。 表3 再生钢铁原料的夹杂物要求 类别 英文名称 英文缩写 中文简称 牌号 夹杂物/％不大于 重型再生钢铁原料 heavy recycling iron-steel materials HRS 重型料 HRS101 0.8 HRS102 0.3 中型再生钢铁原料 medium recycling iron-steel materials MRS 中型料 MRS201 0.8 MRS202 0.3 小型再生钢铁原料 light recycling iron-steel materials LRS 小型料 LRS301 0.8 LRS302 0.3 LRS303 0.3 破碎型再生钢铁原料 shredded recycling iron-steel materials SRS 破碎料 SRS401 1.0 SRS402 1.0 SRS403 1.0 包块型再生钢铁原料 bundled recycling iron-steel materials BRS 打包料 BRSS01 0.3 BRS502 0.8 BRSS03 0.3 合金钢再生钢铁原料 alloy recycling iron-steel materials ARS 合金钢料 ARS601 0.3 ARS602 0.3 ARS603 0.3 铸铁再生钢铁原料 cast recycling iron-steel materials CRS 铸铁料 CRST01 0.8 CRS702 0.3 6 检验方法 6.1 分类 再生钢铁原料通过感官检验进行分类，必要时采用衡器、卷尺等检验手段或其他检测手段对其物理规格进行测定。 6.2 放射性污染物 再生钢铁原料的放射性污染物检验按附录C的规定检验。 6.3 爆炸性物品 爆炸性物品用感官检验。 6.4 危险废物 危险废物的检验按照GB 5085.1～GB 5085.6的规定执行。 6.5 夹杂物 6.5.1 再生钢铁原料的夹杂物首先用目视感官进行检验，估算质量占比。当不能确定是否符合要求时，按6.5.2检验。 6.5.2 再生钢铁原料的夹杂物检测程序如下： a) 抽取原料样品，称量、记录样品质量m； b) 对夹杂物实施分拣，记录非金属物质木废料、废纸、废塑料、废橡胶、废玻璃、石块等的质量m1； c) 使用2 mm筛孔的筛子对原料样品进行筛分，记录粒径不大于2 mm的粉状(灰尘、污泥、木屑、纤维末等)物质的质量m2； d) 通过磁选装置，对筛分出来的粉状物质进行磁选，记录磁选出的金属(铁粉、钢屑、氧化铁等)物质的质量m3。 按式(1)计算夹杂物含量(W1)，数值以％表示。 (1) 式中： W1——夹杂物含量； m1——大块非金属夹杂物质量，单位为千克(kg)； m2——粒径不大于2 mm的粉状物质质量，单位为千克(kg)； m3——粒径不大于2 mm的金属物质质量，单位为千克(kg)； m——样品质量，单位为千克(kg)。 7 验收规则 7.1 组批 每个检验批应由同一类别、同一牌号的再生钢铁原料组成；每个检验批应不少于300 t。 7.2 检验项目 应对再生钢铁原料的放射性污染物、爆炸性物品、危险废物、夹杂物进行检验。 7.3 取样 再生钢铁原料检验项目的取样应符合表4的规定。 表4 再生钢铁原料检验项目取样 检验项目 取样规定 要求章条号 试验方法章条号 放射性污染物 逐批检验 5.2 6.2 爆炸性物品 5.3 6.3 危险废物 5.4 6.4 夹杂物 每检验批取不少于1份样品； 每份样品的质量不少于50 kg 5.5 6.5 7.4 检验结果的判定 7.4.1 检验结果的数值按GB/T 8170的规定进行修约，并采用修约值比较法判定。 7.4.2 本文件检验采取随机抽样检验的方式，随机抽样检验的结果作为整批货物检验结果。 7.4.3 放射性污染物、爆炸性物品、危险废物任一项不符合要求，则判定该批再生钢铁原料不符合本文件的规定。 7.4.4 夹杂物检验应事先确定双倍样本。当第一次检验不符合要求时，可对第二份样品进行检验，并与第一次检验结果进行加权平均。加权平均计算结果符合表3规定的，判定该批再生钢铁原料合格；否则判定该批再生钢铁原料不符合本文件的规定。 8 运输和质量证明书 8.1 运输 8.1.1 发运装车(船)时，每车厢(船舱、集装箱)一般只允许装载同一类别、同一牌号的再生钢铁原料。 8.1.2 为弥补亏舱，也可装两个以上类别、牌号的再生钢铁原料，但应尽量隔开，作出明显标识。 8.2 质量证明书 8.2.1 再生钢铁原料交货时，每个交货批应附有质量证明书或送货单。 8.2.2 质量证明书或送货单同时附有放射性检验合格资料或证明，并注明： a) 供方名称； b) 质量； c) 类别、牌号； d) 如是合金钢再生钢铁原料需要注明钢种及主要合金含量； e) 不锈钢再生钢铁原料需要注明主要成分(铬、镍)的含量。 附录A (资料性) 再生钢铁原料典型照片 再生钢铁原料典型照片见图A.1～图A.12。 图A.1 重型再生钢铁原料HRS101 图A.2 重型再生钢铁原料HRS102 图A.3 中型再生钢铁原料MRS201 图A.4 中型再生钢铁原料MRS202 图A.5 小型再生钢铁原料LRS301 图A.6 小型再生钢铁原料LRS303 图A.7 破碎型再生钢铁原料SRS401/402 图A.8破碎型再生钢铁原料SRS 403 图A.9 包块型再生钢铁原料BRS501 图A.10 包块型再生钢铁原料BRS502 图A.11 合金钢再生钢铁原料ARS601/ARS602 图A.12 铸铁再生钢铁原料CRS701 附录B (资料性) 再生钢铁原料的特征属性 B.1 衰观特征 B.1.1 再生钢铁原料外观应保持清洁，无明显废纸、废塑料、废纤维等物质。 B.1.2 再生钢铁原料外观应无严重锈蚀。 B.1.3 再生钢铁原料应无密闭容器。 B.1.4 钢瓶、钢桶等容器类产品，应剪切、破碎至不具备原容器功能并将原盛装物清除干净。 B.2 化学成分 B.2.1 再生钢铁原料中磷、硫含量分别不大于0.050％，铜含量不大于0.300％，砷含量不大于0.050％。 B.2.2 合金钢再生钢铁原料中，不锈钢再生钢铁原料含镍(Ni)不小于7.0％或含铬(Cr)不小于11.5％。 B.2.3 铸铁、其余合金钢再生钢铁原料的化学成分由供需双方协商商定。 B.3 金属特性 再生钢铁原料应保证优质的金属属性，TFe含量见表B.1。 表B.1 再生钢铁原料的TFe含量 类别 英文名称 英文缩写 中文简称 TFe含量／％不小于 重型再生钢铁原料 heavy recycling iron-steel materials HRS 重型料 93.0 中型再生钢铁原料 medium recycling iron-steel materials MRS 中型料 93.0 小型再生钢铁原料 light recycling iron-steel materials LRS 小型料 92.0 破碎型再生钢铁原料 shredded recycling iron-steel materials SRS 破碎料 92.0 包块型再生钢铁原料 bundled recycling iron-steel materials BRS 打包料 93.0 合金钢再生钢铁原料 alloy recycling iron-steel materials ARS 合金钢料 — 铸铁再生钢铁原料 cast recycling iron-steel materials CRS 铸铁料 92.0 B.4 检测方法 再生钢铁原料成分的检测方法参见附录D。 附录C (规范性) 放射性污染检验方法 C.1 检验仪器 检验用仪器应符合GB 18871、GB/T 12162.3和GB/T 5202的规定。 C.2 外照射贯穿辐射剂量率测量 C.2.1 天然环境辐射本底值测量 C.2.1.1 在进行外照射贯穿辐射剂量率测量前，应先测量并确定当地的天然环境辐射本底值。 C.2.1.2 选择能够代表当地正常天然辐射本底状态，无放射性污染的平坦空旷地面的3～5个点(可作为固定调查点)作为测量点。 C.2.1.3 将测量仪之测量探头置于测量点上方距地面1 m高处，测定其外照射贯穿辐射剂量率，每10 s读取测量值1次，取10次读数的平均值作为该点的测量值，取各测量点测量值的算术平均值作为正常天然辐射平均值。 C.2.2 巡回检测 C.2.2.1 原料在经口岸通道前，应进行放射性污染的巡回检测。巡回检测时，尽可能地将测量仪器接近被测物表面或装载原料的集装箱、车体、仓体等的表面，对被测物的周体表面进行巡回检测。 C.2.2.2 在巡回检测时已发现放射性明显超过三项检测指标管理限值时，判定为不合格。对已发现放射性污染超过三项检测指标管理限值时，不再进行分检或挑选。 C.2.3 测试点分布 C.2.3.1 对于装运原料的汽车、火车、集装箱、轮船或成堆摊放的散装原料，均可按网格法布点(见图C.1)。用直接测量法进行外照射贯穿辐射剂量率和表面污染的检测。