Carbon Steel Pipes
Standard ASTM A192
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ASTM A192/ASME SA192 Standard Specification for Seamless Carbon Steel Boiler Tubes for High-Pressure Service
Standard: ASTM A192, ASME SA192
Equivalent Standards: EN 10216-1, EN 10216-2, DIN 17175, BS 3059 Part II, NF A 49-213, NBR 5594, GB 3087, GB 5310, JIS G3461
Material: SA192
Equivalent Materials: 1010, St35.8, 360, P195TR1 (1.0107), P195TR2 (1.0108), P195GH, 10#, 12G, STB340, 0.1-0.15C
Chemistry Composition
C, %
Mn, %
Si, %
P, %
S, %
0.06-0.18
0.27-0.63
0.25 max
0.035 max
0.035 max
Mechanical Properties
Tensile Strength , MPa
Yield Strength , MPa
Elongation, %
Hardness, HB, WT≥5.1mm
Hardness, HRB, WT<5.1mm
325 min
180 min
35 min
137 max
77 max
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
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 & 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
ASTM A192/A192M specifications covers minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high pressure service. The tubing sizes and thicknesses usually furnished to this specification are 1⁄2 in. to 7 in. [12.7 to 177.8 mm] outside diameter and 0.085 to 1.000 in. [2.2 to 25.4 mm], inclusive, in minimum wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of ASTM A192/A192M.
Manufacture: tubes shall be made by the seamless process and shall be either hot-finished or cold-finished, as specified.
Heat Treatment: hot-finished tubes need not be heat treated. Cold finished tubes shall be heat treated after the final cold-finishing at a temperature of 1200°F [650°C] or higher.
Inspection & Test: chemistry composition analysis, tensile test, flattening test, flaring test, hardness test, NDT, surface inspection and dimension check.
Length: 5800mm; 6000mm; 6096mm; 7315mm; 11800mm; and so on.
Max length: 30000mm, U bending can be offered, also see the fin tubes.
Keyword: boiler steel pipes, ASTM A192, ASME SA192
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