ASTM A135 Grade B Electric-Resistance-Welded Steel Pipe/tube
ASTM A135 Standard Specification for Electric-Resistance-Welded Steel Pipe.
ASTM A135 Grade B steel pipe/tube is intended for conveying gas, vapor, water or other liquid; only Grade A is adapted for flanging and bending.
A135 grade B steel pipe chemical composition
| Element | Carbon | Manganese | Phosphorus | Sulfur |
| Grade A | 0.30 | 1.20 | 0.035 | 0.035 |
The size of A135 Grade B welded steel pipe/tube
ERW; outer diameter:21.3-660mm thickness:6-25mm
LSAW; outer diameter:325-1524mm thickness:6-50mm
SSAW: outer diameter:219-3200mm thickness:5-25mm
ASTM A135 grade B Welded Steel Pipe/tube mechanical properties
| Grade B | |
| Tensile strength, min, ksi (MPa) | 60 (414) |
| Yield strength, min, ksi (MPa) | 35 (241)
|
| Elongation in 2 in. (50 mm), min, %: | |
| For pipe having a specified wall thickness of5
⁄16in. (7.9 mm) or more, if tested using a longitudinal strip test specimen |
30 |
| For pipe having a specified wall thickness of less than5
⁄16 in. (7.9 mm), if tested using a longitudinal strip test specimen |
B |
| For pipe of any size, if tested using a full-size longitudinal test specimen | 30 |
The minimum elongation shall be determined by the following equation, with the calculated value rounded to the nearest percent:
E548t114
where:
E = elongation in 2 in. (50 mm), minimum, %, and
t = specified wall thickness, in
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