ASTM A192 Seamless Carbon Steel Pipe specifications cover seamless carbon steel boiler tubes for high pressure applications. The chemical composition of ASTM A192 steel pipe is carbon 0.6-0.18, silicon ≤ 0.25, manganese 0.35-0.65, phosphorus 0.025, sulfur ≤ 0.020, copper, and molybdenum, and is manufactured using a seamless process. These pipes are made from hot-rolled, cold-rolled or extruded carbon steel materials to ensure their structural integrity and sealing properties.
ASTM A192 High-pressure Steel Boiler Tube is available in sizes ranging from 1/2 in. to 7 in. OD, or 12.7 to 177.8 mm, and wall thicknesses ranging from 0.085 in. to 1.000 in., or 2.2 to 25.4 mm.
ASTM A192 seamless steel pipe is generally used in high-pressure boilers with working pressures not exceeding 9.8Mpa. These pipes have excellent high pressure and high temperature resistance and are suitable for use in various high-pressure equipment environments. Additionally, ASTM A192 steel pipe is suitable for minimum wall thickness seamless carbon steel boiler and superheater tubes for high pressure applications.
Chemical Compositions of A192 carbon Steel Pipe
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Chemical Components (%) |
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|
C |
Si |
Mn |
P |
S |
Mo |
Cr |
V |
|
0.06-0.18 |
≤0.25 |
0.27-0.63 |
≤0.035 |
≤0.035 |
/ |
/ |
/ |
Physical Properties of A192 Steel Pipe
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Mechanical Properties |
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|
Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation (%) |
Hardness (HRB) |
|
≥325 |
≥180 |
≥35 |
≤77 |
ASTM A192 Seamless Tubes Wall Thickness Tolerance
|
Seamless, Cold-Finished Tubes |
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|
Outside Diameter In. (mm) |
Wall thickness Tolerance % |
|
|
Over (+) |
Under (-) |
|
|
1 ½ (38.1) and under |
20 |
0 |
|
Over 1½ (38.1) |
22 |
0 |
ASTM A192 High Pressure Boiler Tube
Outside diameter & tolerance
|
Hot rolled |
Outside Diameter, mm |
Tolerance, mm |
|
OD≤101.6 |
+0.4/-0.8 |
|
|
101.6＜OD≤177.8 |
+0.4/-1.2 |
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|
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≤177.8 |
+0.38/-0.64 |
|
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