ASTM A210 is a standard specification for seamless medium-carbon steel boiler and superheater tubes, used for high-pressure service. These tubes are typically used in boilers, heat exchangers, and superheaters in various industries. Here are the key specifications for ASTM A210 seamless carbon steel boiler tubes.
Specification:
Outside diameter: 1/2"-5" (12.7-127mm)
Weight: 0.035"-0.500" (0.9-12.7mm)
Grade: ASTM A210 Grade A1, ASTM A210 Grade C
Manufacturing process: seamless, cold finishing/hot finishing
Usage: Suitable for high, medium and low pressure boilers and pressure applications
delivery conditions:
Annealing, normalizing, normalizing and tempering
Surface treatment:
Oil immersion, varnish, passivation, phosphating, shot blasting
ASTM A210 Seamless Carbon Steel Boiler Tube Chemical Composition:
|
Grade |
C(Max) |
Mn |
Si(Min) |
P(Max) |
S(Max) |
|
A1 |
0.27 |
Max.0.93 |
0.10 |
0.035 |
0.035 |
|
C |
0.35 |
0.29~1.06 |
0.10 |
0.035 |
0.035 |
ASTM A210 Seamless Carbon Steel Boiler Tube Mechanical Properties:
|
Grade |
Tensile Strength(Mpa) |
Yield Strength(Mpa) |
Elongation (%) |
|
A1 |
≥415 |
≥255 |
≥30 |
|
C |
≥485 |
≥275 |
≥30 |
ASTM A210 Seamless Carbon Steel Boiler Tube OD & 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 |
ASTM A210 Seamless Carbon Steel Boiler Tube WT & Tolerance:
|
Hot Rolled |
Outside Diameter , mm |
Tolerance, % |
|
OD≤101.6, WT≤2.4 |
+40/-0 |
|
|
OD≤101.6, 2.4＜WT≤3.8 |
+35/-0 |
|
|
OD≤101.6, 3.8＜WT≤4.6 |
+33/-0 |
|
|
OD≤101.6, WT>4.6 |
+28/-0 |
|
|
OD>101.6, 2.4＜WT≤3.8 |
+35/-0 |
|
|
OD>101.6, 3.8＜WT≤4.6 |
+33/-0 |
|
|
OD>101.6, WT>4.6 |
+28/-0 |
|
|
Cold Drawn |
Outside Diameter , mm |
Tolerance, % |
|
OD≤38.1 |
+20/-0 |
|
|
OD>38.1 |
+22/-0 |
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