Seamless Carbon Steel Pipe ASTM A192 Specification Parameters
The ASTM A192 specification outlines seamless carbon steel boiler tubes designed for high-pressure applications. These pipes are typically used in high-pressure boilers, where the working pressure does not exceed 9.8 MPa and the operating temperature ranges between 450°C and 650°C. They serve as critical components such as heating surface pipes, headers, economizers, superheaters, and reheaters. CSC STEEL offers ASTM A192 seamless steel pipes in both hot-rolled and cold-drawn conditions to meet various industrial needs.
Chemical Composition of ASTM A192 Seamless Steel Tubes
ASTM A192 Carbon Steel Chemical Composition |
C |
Mn |
P≤ |
S≤ |
Si≤ |
0.06–0.18 |
0.27–0.63 |
0.035 |
0.035 |
0.25 |
Mechanical Properties of ASTM A192 Seamless Steel Tubes
Yield Strength (MPa) |
Tensile Strength (MPa) |
Elongation (%) |
Brinell Hardness Number (WT ≥ 0.200 in / 5.1 mm) |
Rockwell Hardness Number (WT 0.200 in / 5.1 mm) |
≥180 |
≥325 |
≥35 |
137 HRB |
77 HRB |
Outside Diameter and Tolerance for ASTM A192 Seamless Steel Tubes
Hot Rolled |
Outside Diameter, mm |
Tolerance, mm |
OD ≤ 101.6 |
+0.4 / -0.8 |
101.6 < OD ≤ 177.8 |
+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 ≤ 177.8 |
+0.38 / -0.64 |
Wall Thickness and Tolerance for ASTM A192 Seamless Steel Tubes
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 |
Dimensions of ASTM A192 Seamless Steel Tubes
OD (mm) |
Wall Thickness (mm) |
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2 |
2.5 |
3 |
3.5 |
4 |
4.5 |
5 |
6 |
6.5–7 |
7.5–8 |
8.5–9 |
9.5–10 |
11 |
12 |
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