A691 1-1/4CR Alloy Steel EFW Pipe
A691 1-1/4CR alloy steel EFW pipe is commonly used in high temperature, high pressure and corrosive environments.
Specification | Steel grade | Chemical composition | Remarks | |||||
C | Si | Mn | P | S | Ti | |||
Pipes for pressure service ASTM A671, A672 |
-/A45 | -/0.17 | - | 0.98 | 0.035 | 0.035 | - | A671/ A672 |
-/A50 | -/0.22 | - | ||||||
CA55/A55 | 0.28 | - | ||||||
-/B55 | -/0.20 | 0.13 ~0.45 |
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CB60/B60 | 0.24 | |||||||
CB65/B65 | 0.28 | |||||||
CB70/C70 | 0.31 | 1.30 | ||||||
-/C55 | -/0.18 | 0.55 ~0.98 |
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CC60/C60 | 0.21 | |||||||
CC65/C65 | 0.24 | 0.79 ~1.30 |
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CC70/C70 | 0.27 |