采购技术条件螺母(中英对照).doc

HGPURCHASE SPECIFICATION采购技术条件DOC. NO. UD2-08U1-4REV. 1PAGE 1 OF 4PURCHASE SPECIFICATIONFOR CARBON STEEL HEAVY NUTS, SA 194 Gr.2H SA-194 Gr.2H 螺母采购技术条件JOB. NO.:08U1DRAWING NO.: U-08-1/Rev.03210REV.DATEDESCRIPTIONDESIGNED BYAPPROVED BYHONGGUANG CHEMICAL EQUIPMENT Co.,Ltd.HGPURCHASE SPECIFICATION采购技术条件DOC. NO. UD2-08U1-4REV. 1PAGE 2 OF 4This specification is provided descriptions for purchasing nuts material本技术条件对采购下列材料进行了规定.1. Specification designation材料牌号 ASME Code Sect. II 2007Ed, SA-194M Gr.2H.2. Name of item零件名称 Carbon steel Jam Nuts 碳钢锁紧螺母3. Quantity, Description of item and Size数量,名称和型号Part No编号.Quantity数量Description of item名称Nominal size (mm)型号Drawing No. or standard No.标准号148Heavy nutsM20ASME B18.2.4.5M4. Dimension 尺寸4.1 Nuts shall be hexagonal in shape, and in accordance with the dimension for the heavy hex series, as required by ASME/ANSI B18.2.4.6M. 螺母为六角形螺母,尺寸和形状按照ASME/ANSI B18.2.4.6M标准制造4.2 Unless otherwise specified, threads shall be in accordance with ASME B1.13M and shall be gauged in accordance with ANSI/ASME B1.20.1. 除指明的不同处外,螺纹符合ASME B1.13M要求并且符合ANSI/ASME B1.20.1.的要求.4.3 The nuts shall be 8UN Series Class 2B fit. 螺母为8UN系列等级为2H.4. Manufacture制造 Nuts shall be made by machine from hot-forged bars and shall be quenched and then tempered at a temperature not less than 455. 螺母由热锻制成,并且在不低于455的温度下回火处理.5. Chemical requirements化学成分 The heat analysis of the nut materials shall conform to the chemical composition requirements HGPURCHASE SPECIFICATION采购技术条件DOC. NO. UD2-08U1-4REV. 1PAGE 3 OF 4prescribed as follows. 熔炼分析化学成分应符合下表的规定GradeSymbol等级Material材料Carbonmin.最小碳含量Manganesemax.锰最大含量Phosphorusmax.磷最大含量Sulfurmax.硫最大含量Siliconmax.硅最大含量2HCarbonSteel0.40%1.00%0.040%0.050%0.40%6. Hardness requirements硬度需求 The brinell hardness shall be approximately HB 248-352 . 螺母的硬度应当为HB248-3527. Proof load test requirement硬度试验要求 The nuts shall be capable of with standing the proof loads of 676kN. 螺母需要在676kN的载荷下进行试验8. Certification by manufacturer制造厂应当标明 The manufacturer shall provide a test report performed in accordance with this purchase specification. 制造厂应当提供的符合购买要求的试验报告内容包括9.1 Applicable Code: （ASME Code Sect. II） 2007Ed. SA-194 Gr.2H. 实施依据: 2007Ed. SA-194 Gr.2H.9.2 Steel grade: SA-194 Gr. 2H 材料等级: SA-194 Gr. 2H9.3 Chemical analysis results化学分析结果9.4 Mechanical test results 力学试验结果9.5 The manufacturer shall report to the purchaser one copy of the method of melting and the results of macro etch test. 制造商应当提供给采购者关于热处理和硬度试验的结果的资料9.6 Minimum tempering temperature 最小回火温度.9. Marking标记HGPURCHASE SPECIFICATION采购技术条件DOC. NO. UD2-08U1-4REV. 1PAGE 4OF 4 All nuts shall bear the manufacturers identification mark, and shall be legibly marked to indicate the grade and the process of the Manufacture. (2HB)所以螺母应当有制造厂的识别标记,还应当清晰的标记出钢的类别和制造厂生产工艺标记.10 . Other requirements shall be conformed to the ASME Specification SA-194. 其他要求需要