按 SEP1921 执行,合格级别 E/e 级。
Performed according to SEP1921,qualified level is E/e.
4.11 表面质量 Appearance quality
钢材的表面不得有裂纹、结疤、折叠及夹杂。如有上述及其它缺陷必须清除，清除深度从 钢材实际尺寸算起不得超过钢材公称尺寸的 1%，清除宽度不小于深度的 5 倍，同一截面达到 最大清除深度不应多于 1 处。允许有从实际尺寸算起不超过尺寸公差之半的个别细小划痕、压 痕、麻点及深度不超过 0.2mm 的小裂纹存在。表面应整洁，不得有油污等非钢材本身物质。
The steel surface should not have cracks, scarring, folding and inclusion. The above and other defects must be removed, the removal depth from the actual size of the steel shall not exceed 1% of the nominal size of the steel, the removal width is no less than 5 times the depth, on the same cross section , the maximum clearance should not more than 1. Individual small scratches, pressure marks, pits whose actual size counting no more than half the size and cracks whose depth no more than 0.2mm are allowed . The surface should be clean, can not have oil which not belong to steel itself.
5 试验方法 每批钢材的检验项目、取样数量、取样部位和试验方法应符合表 5 的规定。
5 Testing method:The inspection items, sampling number, sampling location and testing method of each batch of steel should be in accordance with the provisions of table 5.
表 5
6 检验规则 Inspection rules
6.1 检查和验收 inspection and acceptance
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6.1.1 钢材出厂的检查和验收由供方质量技术监督部门进行。
6.1.1 Inspection and acceptance of steel is conducted by the supplier Quality and Technical Supervision Department.
6.1.2 供方必须保证交货的钢材符合本标准或合同的规定；必要时，需方有权对本标准或合同 所规定的任一检验项目进行检查和验收。供方在每根钢材两端必须粘贴标识与交货相符的钢种信息（包括材质、规格、炉、批次等）内容。
6.1.2 The supplier must ensure that the delivery steel is in accordance with the standard or the contract rules,the buyer has rights to make inspection and acceptance for any inspection projects when necessary.The supplier must paste the logo which indicates information (including Materials, specifications, carried standard, batch, etc.) matches with real goods at both ends of each steel.
6.2 组批规则 钢材应按批检查和验收，每批由同一牌号、同一炉号、同一加工方法、同一尺
寸、同一交货状态、同一热处理制度（炉次）的钢材组成。
6.2 Batch rules:Steel should be inspected and accepted batches,each batch is made
of the same grade, the same furnace, the same processing method, the same size, the same delivery status, the same heat treatment system (furnace).
6.3 取样数量及取样部位每批钢材的取样数量和取样部位应符合表 5 的规定。
6.3 Sampling number and location:The sampling number and location of each batch of
steel should be in accordance with the provisions of table 5
6.4 复验与判定规则钢材的复验与判定规则按 GB/T 17505 规定执行。
6.4 Re-inspection and decision rules:Re-inspection and decision rules for steels
should be performed according to GB/T 17505.
7 包装、标志和质量证明书 Packing, marking and quality certificates
钢材的包装、标志及质量证明书应符合 GB/T 2101 及合同的有关规定。
The packing, marking and quality certificate of the steel should be in accordance with the relevant provisions of the GB/T 2101 and the contract.
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