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ASTM A210 A1 Seamless Boiler Tube
SA 210 A1 Ferritic Steel Boiler Tube is Primarily Used For Heat Exchanger Tubes In Critical Thermal Power Plants And Waste Heat Recovery Boilers Operated In The Temperature Range Of 300°C -400 °C. ASTM 210 A1 Ferritic Steel Pipes Are Fitted In Water Walls Operating At Temperatures Around 300-400°C .These Steels Tubes Are Exposed In The Furnace To High Temperature. Both Corrosion And Erosion Attack From The Hot Flue Gas Stream Significantly Enhances The Higher Metal Wastage Rate.
ASTM A210 / A210M Grade A-1 Chemical Compositions
| Chemical Components (%) | ||||||||
| Grade | C | Si | Mn | P | S | Mo | Cr | V |
| A-1 | ≤0.27 | ≥0.10 | ≤0.93 | ≤0.035 | ≤0.035 | / | / | / |
ASTM A210 / A210M Mechanical Tests Required
| Mechanical Properties | ||||
| Grade | Tensile Strength (Mpa) | Yield Strength (Mpa) | Elongation (%) | Hardness (HRB) |
| A-1 | ≥415 | ≥255 | ≥30 | ≤79 |
ASTM A210 / A210M Tube Wall Thickness Tolerance
| Seamless, Cold-Finished Tubes | ||
Outside Diameter In. (mm) | Wall thickness Tolerance % | |
| Over (+) | Under (-) | |
| 1 ½ (38.1) and under | 20 | 0 |
| Over 1½ (38.1) | 22 | 0 |
ASTM A210 / A210M 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) |
Specification Of ASTM A210 ASME SA210 GRADE A1 Seamless Tubes
Standard: ASTM A210 / ASME SA210
Description Name: ASME SA210 / ASTM A210 boiler pipes, ASTM A210 seamless tubing, ASTM A210 cold drawn seamless steel tubes
Size: 1⁄2 in. to 16 in.
W.T.: 1.5mm-50mm
Shape: Round
Production Type: Hot finished and cold finished.
Length: Single random length/ Double random length or as customer’s actual request max length is 13 m
Grade: Grade A-1
Heat Treatment: Hot-finished tubes need not be heat treated. Cold- finished tubes shall be given a subcritical anneal, a full anneal, or a normalizing heat treatment after the final cold finishing process.
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