ASTM A426/A426M-13
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Standard Specification for Centrifugally Cast Ferritic Alloy Steel Pipe for High-Temperature Service
1.1This specification2 covers centrifugally cast alloy steel pipe intended for use in high-temperature, high-pressure service.
1.2Several grades of ferritic steels are covered. Their compositions are given in Table 1.
TABLE 1 Chemical RequirementsA
|
Composition, % |
||||||||
|
Grade |
UNS Number |
Carbon |
Manganese |
Phos- |
Sulfur, max |
Silicon |
Chromium |
Molybdenum |
|
CP1 |
J12521 |
0.25 max |
0.30-0.80 |
0.030 |
0.025 |
0.10-0.50 |
… |
0.44-0.65 |
|
CP2 |
J11547 |
0.10-0.20 |
0.30-0.61 |
0.030 |
0.025 |
0.10-0.50 |
0.50-0.81 |
0.44-0.65 |
|
CP5 |
J42045 |
0.20 max |
0.30-0.70 |
0.030 |
0.025 |
0.75 max |
4.00-6.50 |
0.45-0.65 |
|
CP5b |
J51545 |
0.15 max |
0.30-0.60 |
0.030 |
0.025 |
1.00-2.00 |
4.00-6.00 |
0.45-0.65 |
|
CP9 |
J82090 |
0.20 max |
0.30-0.65 |
0.030 |
0.025 |
0.25-1.00 |
8.00-10.00 |
0.90-1.20 |
