ASTM A192/A192M-24 compliant seamless carbon steel boiler tubing
Designed for high-pressure boiler and superheater service
Seamless construction for pressure-containing heat-transfer applications
Cold-drawn / cold-rolled manufacturing capability
FYN manufacturing range: OD 6–114 mm
Wall thickness: 0.8–25 mm
Lengths available up to 40 m, subject to size and production feasibility
Dimensional, surface, hardness and required forming-test inspection
Hydrostatic / UT / ET inspection options according to applicable order requirements
MTC and project-specific inspection documentation available
ASTM A192 seamless boiler tubes are primarily used in pressure-containing heat-transfer surfaces, including:
Boiler heating surfaces
Water-wall / evaporator tubes
Boiler tubes
Superheater tubes
Economizer tubes where ASTM A192 is specified
Boiler pressure-part assemblies
Replacement boiler tube bundles
Power Generation
Industrial Boilers
Boiler Manufacturing
Heat Recovery Systems
Petrochemical Plants
Refinery Utility Systems
Industrial Steam Systems
Boiler Maintenance & Replacement
For an accurate technical and commercial quotation, please specify:
ASTM Standard + OD × Minimum Wall Thickness × Length + Quantity
Also indicate any requirements for:
ASTM edition
Dimensional tolerance
Hydrostatic testing
UT / ET
MTC / EN 10204 documentation
Third-party inspection
Special marking or packing
Important: ASTM A192/A192M is based on minimum wall thickness. Clearly identifying minimum wall rather than only nominal wall thickness helps avoid specification differences during quotation and production.
ASTM A192/A192M-24 · Seamless Carbon Steel · High-Pressure Service
ASTM A192/A192M seamless carbon steel tubes are used for high-pressure boiler and superheater service. FYN supplies cold-drawn and cold-rolled tubes with outside diameters of 6–114 mm, wall thicknesses of 0.8–25 mm, and lengths of up to 40 m, subject to size feasibility.
Testing, Mill Test Certificates (MTCs), and project-specific inspection documentation can be supplied according to order requirements.
| Parameter | Specification |
|---|---|
| Product Type | Seamless Carbon Steel Boiler & Superheater Tube |
| Standard | ASTM A192/A192M-24 |
| Material | Carbon Steel |
| Service | High-Pressure Boiler & Superheater Service |
| Wall Basis | Minimum Wall Thickness |
| Manufacturing Process | Cold Drawn / Cold Rolled |
| FYN Outside Diameter | 6–114 mm |
| FYN Wall Thickness | 0.8–25 mm |
| Length | Up to 40 m, subject to size feasibility |
| Inspection | Hydrostatic / UT / ET as specified |
| Documentation | MTC / EN 10204 documentation as specified |
| Third-Party Inspection | Available upon request |
Size feasibility is reviewed before quotation based on outside diameter, wall thickness, length, tolerances, and inspection requirements.
ASTM A192/A192M covers minimum-wall-thickness seamless carbon steel boiler and superheater tubes for high-pressure service.
The specification defines requirements for chemical composition, manufacture, heat treatment, hardness, forming tests, and hydrostatic testing.
Referenced Edition: ASTM A192/A192M-24
Standard Title: Standard Specification for Seamless Carbon Steel Boiler Tubes for High-Pressure Service
The following sizes are usually furnished under ASTM A192/A192M-24:
| Dimension | Imperial | Metric |
|---|---|---|
| Outside Diameter | 1/2–7 in. | 12.7–177.8 mm |
| Minimum Wall Thickness | 0.085–1.000 in. | 2.2–25.4 mm |
Other dimensions may be supplied provided the tubes meet all other applicable requirements of the specification.
Note: The standard size range above is separate from FYN’s manufacturing capability shown in the Product Overview.
Standard reference: ASTM A192/A192M-24, Scope 1.1–1.2.
| Element | Content |
|---|---|
| Carbon (C) | 0.06–0.18% |
| Manganese (Mn) | 0.27–0.63% |
| Phosphorus (P) | ≤0.035% |
| Sulfur (S) | ≤0.035% |
| Silicon (Si) | ≤0.25% |
Chemical composition is verified against the applicable heat / lot documentation and Mill Test Certificate.
Standard reference: ASTM A192/A192M-24.
| Wall Thickness | Maximum Hardness |
|---|---|
| ≥0.200 in. [5.1 mm] | 137 HBW |
| <0.200 in. [5.1 mm] | 77 HRBW |
Standard reference: ASTM A192/A192M-24, Clause 10.1.
ASTM A192/A192M tubes are manufactured by the seamless process. FYN mainly supplies cold-drawn and cold-rolled boiler tubes for applications requiring controlled outside diameter and wall thickness.
For cold-finished tubes, heat treatment is carried out after the final cold-finishing operation in accordance with ASTM A192/A192M requirements.
Tubes are inspected against the applicable standard and purchase specification.
| Inspection Area | Typical Checks |
|---|---|
| Chemical Composition | Composition verification against applicable documentation |
| Dimensions | Outside diameter, minimum wall thickness, length, and straightness |
| Surface Condition | Surface inspection |
| Mechanical / Forming Tests | Flattening, flaring, and hardness tests |
| Hydrostatic Testing | Hydrostatic test |
| Non-Destructive Testing | UT / ET when specified |
| Final Review | Marking and document review |
Inspection records and MTCs can be supplied with the order. Third-party inspection can also be arranged according to project requirements.
ASTM A192 seamless carbon steel tubes are primarily used for high-pressure boiler heat-transfer surfaces.
For pressure-containing boiler heating surfaces carrying water or steam.
For boiler furnace and evaporating heating surfaces where ASTM A192 is specified.
For superheater applications within suitable carbon-steel design conditions.
For boiler economizer applications where ASTM A192 is permitted by the equipment specification.
For OEM boiler manufacturing, pressure-part fabrication, replacement tube bundles, and maintenance projects.
Material selection: Final material selection should be checked against the applicable boiler design code, operating temperature, pressure, and service conditions.
Documentation can be supplied according to the purchase specification, including:
Required documentation should be confirmed at the RFQ stage.
Long-length tubes may require special packing and transport arrangements.
| Item | Details |
|---|---|
| Custom Sizes | Subject to technical review |
| Minimum Order Quantity | According to size and production requirements |
| Production Lead Time | Based on tube size, quantity, manufacturing route, heat treatment, testing, inspection requirements, and production schedule |
| Special Packing | According to project and transport requirements |
For an accurate quotation, please provide the following:
| Item | Required Information |
|---|---|
| Standard | ASTM A192/A192M and required edition, if specified |
| Tube Dimensions | Outside Diameter × Minimum Wall Thickness × Length |
| Quantity | Required order quantity |
| Dimensional Tolerances | Project-specific tolerances, if applicable |
| Testing & Inspection | Hydrostatic / UT / ET requirements |
| Documentation | MTC / EN 10204 requirements |
| Third-Party Inspection | Required scope, if applicable |
| Delivery | Destination and delivery requirements |
Minimum wall thickness must be specified. ASTM A192/A192M specifies minimum wall thickness; please indicate minimum wall rather than nominal wall thickness when preparing your RFQ.
Send your required tube dimensions and quantity:
OD × Minimum Wall Thickness × Length × Quantity
For project enquiries, attach your tube list, drawing, or technical specification, together with NDT, documentation, and delivery requirements.
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