常用材质化学成分15*0.1冷拔钢管直销28*12冷拔钢管厂家34*12冷拔钢管直销47*20.5冷拔钢管厂家 10# 0.07~0.13 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035 20# 0.17~0.23 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035 35# 0.32~0.39 0.17~0.37 0.35~0.65 ≤0.035 ≤0.035 45# 0.42~0.50 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 40cr 0.37~0.44 0.17~0.37 0.50~0.80 ≤0.035 ≤0.035 0.08~1.10 25Mn 0.22~0.2 0.17~0.37 0.70~1.00 ≤0.035 ≤0.035 ≤0.25 37Mn5 0.30~0.39 0.15~0.30 1.20~1.50 ≤0.015 ≤0.020 标准，材质，交货状态 主要标准：GB/T3639，DIN2391-94/C，DIN2445，EN10305，DIN1630，DIN1629，ASTM A106，ASTM A179，JIS G3445 主要材质：10#，20#，35,45,40Cr,25Mn.37Mn5,St35(E235),St37.4,St45(E255),St52(E355) 主要交货状态：NBK(+N)，GBK(+A)，BK(+C)，BKW(+LC)，BKS(+SR 12×1 89×4.5-8-10-12-14-16-18-20 245×25-28-30-34-40 14×1.5-2.5-3 95×4.5-6-8-10-12-14-16-20 273×7-9-12-15-18-20-25 16×1.5-2.5-4 102×4.5-5-6-7-8-10-12-14-16-20 273×30-35-38-40-45-50 18×2.3-4-5 108×4.5-5-6-7-8-10-12-14-18-20-22 299×8-12-16-20-24-28 20×2.5-3-5 114×4.5-5-6-7-8-10-12-14-18-20 299×30-32-36-38-40-45 24×2.5-3-4-5-6 121×4.5-5-6-7-8-10-12-14-16-20 325×8-12-14-18-38-42 25×2.5-3-4-5-6 127×4.5-5-6-7-8-10-12-14-16-20 325×28-32-34-38-42 28×3-3.5-4-5-6 133×4.5-6-8-12-14-16-18-20-25-30 351×10-16-20-25-40 32×3.5-4-5-6-8 140×5-6-7-8-9-10-12-14-16-20-22 355×6-18-20-25-30-40/52 34×4-5-6-8 146×4.5-6-8-12-14-16-18-20-25-30 377×8-12-15-20-24-28 36×3.5-5-6-8 152×4.5-6-8-12-14-16-18-20-25-30 377×30-37-40-45-50 38×4-5-6-7-8-9-10 159×4.5-6-10-12-14 402×10-15-20-25-30-35 39×3.5-5-8-10 159×16-18-20-22-25-30 406×10-20-25-28-35-40 42×3.5-4-5-6-7-8-9-10 168×8-10-12-14-20-25-30-35 426×10-12-14-16-20-25-30-35-40 45×3.5-4-5-6-7-8-9 180×8-12-16-25-30 450×10-12-14-16-20-25-34-40-50 48×3.5-4-5-6-7-8-9-10 180×32-34-38-40-45-50 480×10-12-14-16-18-20-25-30-40 51×3.5-4-5-6-7-8-9-10 194×6-8-12-16-20-25-30-40-45-50 500×10-12-14-16-20-25-34-40-50 56×3.5-4-5-6-7-8-9-10 203×6-7-10-15-20-25-30 510×10-12-14-16-20-25-34-40-50 57×3.5-5-6-7-8-9-10-12 203×32-36-40-45-50 530×10-12-14-16-18-20-30-40 60×3.5-4.5-5-6-7-8-9-12-14 219×6-8-12-16-18-20-25 560×10-14-16-20-25-30-40-50-60 63×3.5-4.5-5-6-7-8-9-10-12-14 219×30-40-45-50-55 580×10-14-16-20-30-40-50-70 68×4-4.5-5-6-7-8-9-10-12-14-16 219×55-58-60-65-70 600×10-14-18-25-20-30-50-60 70×4-4.5-5-6-7-8-9-10-12-15-16 245×8-10-14-17-20-22 610×10-14-18-25-20-30-50-60 73×4-4.5-5-6-7-8-9-10-12-15 245×25-28-30-34-40 620×14-20-30-35-45-50-60 76×4-4.5-5-6-7-8-9-10-12-14 273×7-9-12-15-18-20-25 630×10-20-30-40-55-75 83×4.5-5-10-12-14-16-18-20