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42CrMo4,S355J2G3,SAE8620,16MnCr5,20MnCr5,34CrNiMo6, SAE4130,SAE4340,18CrNiMo7-6,39CrNiMo3,SAE4140,17CrNiMo6, 38CrMoAl,SCM440,SCM415,SCM420,SNCM439,S26C21CrMoV511, 56NiCrMoV7,ST52-3SACM645,30CrNiMo8,18CrNiMo5规格：90MM-1200MM长度：4米以上，或按客户要求定长交货； 交货状态：热锻+正火退火+车削+淬火回火。 （亦可根据客户要求提供交货状态） 钢锭：电炉+精炼炉+真空脱气 探伤：SEP1921 CLASS CC，Dd,Ee产品规格有：锻材Φ 80-1200mm，方坯80-1200mm。 长度：3-16米，或者按客户要求提供定尺交货。 锻造比：≥4：1， 直线度：≤3mm1000mm晶粒度：6-8 H：≤2.0ppm非金属夹杂：粗系值≤2.0 细系值≤2.0直径公差：-0+3mm 表面交货状态：黑皮磨光车削 探伤标准：按GBT 6402 保一级二级三级。 亦可按出口标准SEP1921 CLASS CC，DD，EE。 引用的标准号:DIN 7527-6EN 10204SEP 1921EN 10228-3EN 10250EN10083SEW 炼钢工艺：EAF电炉+LF精炼炉+VD真空脱气炉(喂Ca-Si线)+钢锭（底浇注US Standard: AISI1020, AISI1040, AISI1045, AISI1050Europe Standard: CK15, C. 22, C45, CK45, C60, CK60 C45EAlloy Steel:Chinese Standad: 16Mn, 20Mn, 30Mn2, 30Mn5, 40Cr, 42CrMo,20CrMo, 38CrMoAl, 40CrNiMo 48CrMo, 5CrNiMoJanpan Standard: SCM415, SCM420, SCM440, SNCM439, SNCM220 SACM645USA Standard: SAE4140, SAE4130, SAE9840, SAE4340, AISI4145H,SAE4150, SAE8620,Europe Standard: 42CrMo4, 25CrMo4, 34CrNiMo6, 39CrNiMo3,17NiCrMo6, 18CrNiMo7-6, S355J2G3, ASTM A105, ST52-3, 16MnCr5,20MnCr5, 16MnCrS5, 20MnCrS5, 21CrMoV511, 56NiCrMoV7, 18NiCrMo5,30CrNiMo8, 34NiCrMo16, 41CrAlNi7, 34CrAlNi7, B7, B16, F11,F12, F22, F5, F9, 51Cr4. Tool Steel: 1.2714, H13, H11, P20, SKD61Delivery condtion: Hot forged+Normalzied+Rough Machined+QTSize: Dia90mm- Dia1200mm.Steel ingot: EAF+LF+VD.Ultra-sonic test: As per SEP 1921 Group III Cc, Dd, EeAs forged condition straightness: ≤ 4mmm, RT bar straightness: ≤ 2mmmAs forged diameter tolerance: -0+8mm RT diameter tolerance: -0+3 mmGrain size: As per ASTM E112-96 Grade 5 or finer for normalizedannealedQT conditionNon-metal inclusion: As per ASTM E45 ABCD heavy ≤ 2, thin ≤ 2.5Quantity: 15MT or double per sizeMill certificate as per EN 102043.1. BDelivery time: Within 60 days

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