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Standard
ASME SA192/SA192M
ASME SA192/SA192M Standard covers minimum-wall thickness, seamless carbon steel boiler and superheater tubes for high- pressure service.
ASME SA192/SA192M Tubes 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 this specification.
ASME SA192/SA192M Tubes mechanical property requirements do not apply to tubing smaller than 1⁄8 in. [3.2 mm] inside diameter or 0.015 in. [0.4 mm] thickness.
Size Range: OD:1/4" (6.25mm) to 4" (101.6mm), WT 0.02" (0.9mm) to 0.5"(12.7mm)
Wall Thickness: 0.9mm to 10mm
Length: 3000 MM – 16000 MM
Length: Single Random, Double Random & Required Length, Custom Size – 12m lengths
Ends: Plain end or beveled end, square cut, burr free ,Plastic Cap at Both end
Process: Cold drawn, Cold rolled, Hot rolled
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.
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 |
Chemical Composition
Element |
A/SA 192 |
C |
0.06-0.18 |
Mn |
0.27-0.63 |
P |
≤ 0.035 |
S |
≤ 0.035 |
Si |
≤ 0.25 |
Mechanical & Physical Properties
Element |
A/SA 192 |
Tensile Strength (MPa) |
≥325 |
Yield Strength (MPa) |
≥180 |
Elongation % |
≥35 |