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Carbon Steel ASME SA210 GR.A1 CS SMLS Tube Boiler Superheaters
What is ASME SA210?
This specification covers seamless medium-carbon steel boiler and superheater tubes. The specification also covers minimum-wall-thickness, tubing sizes, boiler flues including safe ends, arch and stay tubes. The specification provides tensile and hardness properties but only applicable to certain size limitations. Material manufacturing shall be killed. Tubes shall be made by seamless process, marked as either hot-finished or cold-finished. Surface condition shall be specifically stated in the order.
SA 210 is used in high-pressure and temperature systems. The SA 210 Grade A1 Boiler Tube is made up of a chemical composition consisting of 0.27% of carbon, 0.93% manganese, 0.10% silicon, 0.035% phosphorous, and sulfur.
The SA210 Tube is highly versatile and widely used in oil and gas refineries, water supply systems, sewage treatment, agricultural equipment, petrochemical, paper industries, etc.
YUHONG GROUP is the leading SA210 A1 Boiler Tube supplier in China. We aim to supply high-quality products for your needs.
Chemical Composition:
| Grade | C | Mn | Si | P | S |
| A1 | 0.27 | Max 0.93 | 0.10 | 0.035 | 0.035 |
Mechanical Properties:
| Tensile Strength | Yield Strength | Elongation | Hardness |
| ≥415 | ≥255 | ≥30 | ≤79 |
High Temperature Carbon Steel ASTM A210 Grade A1 Tubes Yield Strength:
| Grade | Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation(%) | Hardness (HRB) |
| A1 | ≥415 | ≥255 | ≥30 | ≤79 |
Cut Length Tolerance of ASTM A210 Carbon Steel GR.A1 Boiler Tubes:
| Outside Diameter,In.(mm) | Cut Length, in.(mm) | |
|---|---|---|
| Over (+) | Under (-) | |
| All Sizes | 3⁄16 [5] | 0 [0] |
| Under 2 (50.8) | 1⁄8 [3] | 0 [0] |
| 2 (50.8) and over | 3⁄16 [5] | 0 [0] |
| Under 2 (50.8) | 1⁄8 [3] | 0 [0] |
| 2 (50.8) and over | 3⁄16 [5] | 0 [0] |
Hydrostatic Test Pressures of ASME SA210 Gr A1 Superheater Tubes:
| OD of Tube, in. [mm] | Hydrostatic Test Pressure, psi [MPa] |
|---|---|
| Under 1 [25.4] | 1000 [7] |
| 1 to 11⁄2 [25.4 to 38.1], excl | 1500 [10] |
| 11⁄2 to 2 [38.1 to 50.8], excl | 2000 [14] |
| 2 to 3 [50.8 to 76.2], excl | 2500 [17] |
ASTM A210 Tube Outside Diameter Tolerance
| Cold-Finished Seamless Tubes | ||
Outside Diameter In. (mm) | Permissible Variations In. (mm) | |
| Over (+) | Under (-) | |
| Under 1 (25.4) | 0.004 (0.10) | 0.004 (0.10) |
| 1 to 1 ½ (25.4 to 38.1), Incl | 0.006 (0.15) | 0.006 (0.15) |
| Over 11⁄2 to 2 (38.1 to 50.8), Excl | 0.008 (0.20) | 0.008 (0.20) |
| 2 to 21⁄2 (50.8 to 63.5), Excl | 0.010 (0.25) | 0.010 (0.25) |
| 21⁄2 to 3 (63.5 to 76.2), Excl | 0.012 (0.30) | 0.012 (0.30) |
Applications:
-Oil and gas refineries
-Water supply systems
-Sewage treatment
-Agricultural equipment
-Petrochemical
-Paper industries
