美国标准ASTM A53B是什么材质?
ASTM A 53-1998 非镀锌和热浸镀锌焊接钢管和无缝钢管规范
ASTM A 53 M-1999 黑色和热浸镀锌焊接及无缝钢管规范
标准: ASTM A53
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无缝碳素钢与合金钢机械用管/Seamless carbon and Alloy Steel Mechanical Tubing
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Application:
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适用于作受力及承压件,也可用于一般用途的蒸汽、水、气体及空气管线。
For mechanical and pressure use,and also for transporting steam,water,gas and etc.
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Size(mm):
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外径 O.D.: 6.0~323.0 壁厚 W.T.: 1~30 长度 L: max 12000
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钢号及化学成分/Grade and Chemical Composition (%)
钢级Grade
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C ≤
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M ≤
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P ≤
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S ≤
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Cu ≥
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Ni ≤
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Cr ≤
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Mo ≤
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V ≤
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A
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0.25
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0.95
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0.05
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0.045
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0.40
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0.40
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0.40
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0.15
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0.08
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B
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0.30
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1.20
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0.05
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0.045
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0.40
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0.40
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0.40
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0.15
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0.08
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机械性能/Mechanical Properties:
钢号
Grade
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抗拉强度
Rm Mpa Tensile Strength
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屈服点
Mpa Yield Point
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伸长率A%
Elongation
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交货状态 Delivery Condition
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A
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≥330
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≥205
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20
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Annealed
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B
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≥415
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≥240
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20
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Annealed
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尺寸偏差/Dimension Tolerances:
钢管类型 Pipe Type
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钢管尺寸 Pipe Sizes
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允许偏差 Tolerances
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冷拔管 Cold Drawn
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外径 OD
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≤48.3mm
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±0.40mm
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壁厚 WT
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≥60.3mm
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±1%mm
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