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高温作业用碳素无缝钢管/Seamless carbon steel pipes for high-temperature service
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Application:
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用于高温作业/For high temperature service
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Size(mm):
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外径 O.D.: 6.0～1200.0 壁厚 W.T.: 1～200长度 L: max 3000-24000
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钢号及化学成分/Grade and Chemical Composition (％)
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钢级 Grade
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C≤
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Mn
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P≤
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S≤
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Si≥
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Cr≤
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Cu≤
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Mo≤
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Ni≤
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V≤
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A
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0.25
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0.27-0.93
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0.035
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0.035
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0.10
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0.40
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0.40
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0.15
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0.40
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0.08
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B
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0.30
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0.29-1.06
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0.035
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0.035
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0.10
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0.40
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0.40
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0.15
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0.40
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0.08
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C
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0.35
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0.29-1.06
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0.035
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0.035
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0.10
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0.40
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0.40
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0.15
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0.40
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0.08
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机械性能/Mechanical Properties：
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钢号
Grade |
抗拉强度
Rm Mpa Tensile Strength |
屈服点
Mpa Yield Point |
伸长率A％
Elongation |
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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C
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≥485
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≥275
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20
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Annealed
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尺寸偏差/Dimension Tolerances：
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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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≥60.3mm
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±1％mm
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壁厚 WT
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±12.5％
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