ASTM A556, ASME SA 556 is a common standard specification for seamless cold-drawn carbon steel feedwater heater tubes. It covers minimum-wall-thickness, seamless cold-drawn carbon steel tubes including bending into the form of U-tubes. It’s used for making a water cooling wall of the power plant boiler, it can effectively eliminate the steam film on the inner wall of steel tube and improve the thermal efficiency of the furnace wall. There are three grades for this specification: Grade A2, B2, C2 and among them, B2 and C2 are commonly used.
The tubes we supply:
Specification: ASTM A556 B2
Outside Diameter: 20mm-31.8mm
Wall Thickness::1.1mm-35mm
Length: 3m-12m
Method: Cold Drawn
Delivery Condition: NBK, Bright, U bending.
ASTM A556 Chemistry Composition
Grade | C | Si | Mn | P | S |
B2 | ≤0.27 | ≥0.10 | 0.29-0.93 | ≤0.035 | ≤0.035 |
ASTM A556 Physical Property
Grade | Tensile Strength MPa | Yield Strength MPa | Elongation | Hardness HRB |
A2 | 320 min | 410 min | 35 | 72 |
B2 | 410 min | 260 min | 35 | 79 min |
C2 | 480 min | 280 min | 35 | 89 min |
ASTM A556, ASME SA 556steel pipe is mainly for a high-temperature heater system. World iron&steel offers ASTM A556 Grade B2 seamless steel tubes manufactured in cold drawn process in various sizes and specifications. If you are looking for this material, please contact us or get a quote! Not only do we have all kinds of sizes, but we also have all kinds of sizes that are hard to find.
