ASTM A210 seamless steel pipe is a kind of seamless steel pipe for medium and low pressure boilers. It is used to manufacture various low and medium pressure boilers, superheated steam pipes, boiling water pipes, water wall pipes and superheated steam pipes, large smoke pipes and small smoke pipes for locomotive boilers. Pipes and arch brick pipes, etc.
ASTM A210 seamless steel pipes are divided into two categories: A1 and C. Category A1 steel pipes have lower carbon and silicon content and are mainly used for headers and heating surface pipes that require higher strength and larger heating surfaces; Category C steel pipes have lower manganese content , high silicon content, mainly used in heating surface pipes, economizers, superheaters, reheaters, petrochemical industry pipes, etc.
Chemical Components (%) of ASTM A210
| Steel Grade | C | Si | Mn | S | P |
| A210 A1/ SA-210A1 | ≤0.27 | ≥0.10 | ≤0.93 | 0.020 | 0.025 |
| A210C/ SA-210C | ≤0.35 | ≥0.10 | 0.29-1.06 | 0.020 | 0.025 |
Mechanical Properties Of ASTM A210
| Grade | Tensile strength (Mpa) |
Yield point(Mpa) not less than |
Elongation(%) not less than |
Impact(J) not less than |
Hardness not less than |
| A210 A1/ SA-210A1 | ≥415 | 255 | " | 79HRB | |
| A210C/ SA-210C | ≥485 | 275 | " | 89HRB |
Outside Diameter & Tolerance
| Hot rolled | Outside Diameter, mm | Tolerance, mm |
| OD≤101.6 | +0.4/-0.8 | |
| 101.6＜OD≤127 | +0.4/-1.2 | |
| Cold Drawn | Outside Diameter, mm | Tolerance, mm |
| OD＜25.4 | ±0.10 | |
| 25.4≤OD≤38.1 | ±0.15 | |
| 38.1＜OD＜50.8 | ±0.20 | |
| 50.8≤OD＜63.5 | ±0.25 | |
| 63.5≤OD＜76.2 | ±0.30 | |
| 76.2≤OD≤101.6 | ±0.38 | |
| 101.6＜OD≤127 | +0.38/-0.64 |
