ASTM A192
High-Pressure Boiler Tubes
ASTM A192 / ASME SA-192 seamless carbon steel boiler tubes for high-pressure service, available dual certified.
ASTM A192 boiler tubes
OVERVIEW
Carbon steel tubes for high-pressure boilers.
ASTM A192 covers seamless carbon steel boiler and superheater tubes for high-pressure service. ASME adopts it as SA-192 for boilers built to the Boiler and Pressure Vessel Code.
A192 tubes may be hot finished or cold drawn; cold-drawn tubes are heat treated after the final draw. We supply A192 dual certified to ASME SA-192 where the order requires, cut to length, with hydrostatic or nondestructive testing and an MTR stating heat number and country of melt.
✓ Seamless carbon steel for high-pressure service
✓ Dual certification to ASME SA-192
✓ Hot finished or cold drawn
✓ Hardness 77 HRB max
✓ Cut lengths, hydro or NDE testing, full MTR
✓ Dual certification to ASME SA-192
✓ Hot finished or cold drawn
✓ Hardness 77 HRB max
✓ Cut lengths, hydro or NDE testing, full MTR
ASTM A192 boiler tubes
SPECIFICATION SUMMARY
What the standard requires.
Key requirements
| Requirement | ASTM A192 / ASME SA-192 |
|---|---|
| Scope | Seamless carbon steel boiler and superheater tubes for high-pressure service |
| Size range in the standard | 1/2 to 7 in (12.7 to 177.8 mm) OD; 0.085 to 1.000 in (2.2 to 25.4 mm) wall |
| Carbon | 0.06 to 0.18% |
| Manganese | 0.27 to 0.63% |
| Phosphorus, max | 0.035% |
| Sulfur, max | 0.035% |
| Silicon, max | 0.25% |
| Tensile strength, min | 47,000 psi (325 MPa) |
| Yield strength, min | 26,000 psi (180 MPa) |
| Elongation in 2 in, min | 35% |
| Hardness, max | 77 HRB |
| Heat treatment | Cold-drawn tubes heat treated at 1,200°F (650°C) or higher after the final draw |
| Tests | Flattening, flaring and hardness; hydrostatic or nondestructive electric test per ASTM A450 |
| Note | Values summarize the standard. Your purchase order governs the edition and any supplementary requirements. |
APPLICATIONS & INDUSTRIES
Where these tubes get used.
KEY PROPERTIES
Built for boiler pressure.
HARDNESS
77 HRB max
Ductile enough for expanding and bending in boiler fabrication.
CERTIFICATION
A192 / SA-192
Dual certified where the order requires it, with a full MTR.
TECHNICAL ARTICLES
Latest insights on boiler tubes.
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ARTICLE
Hot Finished vs Cold Drawn Process
How the two routes differ and what each means for the finished tube.
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GET A QUOTE
Send your A192 tube spec.
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OD, wall, length, quantity in feet, testing and certification (ASTM A192 or dual ASME SA-192): that’s all we need to send a technical and commercial proposal.