ASTM A192 Fin Tube
ASTM A192/ASME SA192 finned tubes designed for efficient heat exchange in various applications.
1. Standard Overview
2. Product Technical Specifications
3. Manufacturing Process and Quality Control
4. Application Areas and Case Studies
5. Special Product Forms
6. International Standards Comparison
7. Ordering Guidelines
8. Product Identification and Packaging
9. Warranty and Services
10. Contact Information
1. Standard Overview
1.1 ASME SA 192 / ASTM A192 Standard Introduction
ASTM A192/ASME SA192 is a standard specification recognized by both the American Society for Testing and Materials (ASTM) and the American Society of Mechanical Engineers (ASME), covering minimum-wall-thickness, seamless carbon steel boiler and superheater tubes for high-pressure service. Both standard numbers correspond to identical content, differing only in the issuing organization.
This standard specifies the chemical composition, mechanical properties, manufacturing process, heat treatment requirements, dimensional tolerances, and necessary testing methods for seamless carbon steel boiler and superheater tubes, ensuring that the products can operate safely and reliably in high-pressure environments.
1.2 Scope of Application
Application Scope
- Product Type: Seamless carbon steel boiler and superheater tubes
- Service Conditions: High-pressure service
- Wall Thickness Requirements: Minimum wall thickness specifications
- Standard Size Range:
- Outside Diameter: 1/2 inch to 7 inches (12.7 mm to 177.8 mm)
- Minimum Wall Thickness: 0.085 inch to 1.000 inch (2.2 mm to 25.4 mm)
- Special Cases: Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification
- Limitations: Mechanical property requirements do not apply to tubing smaller than 1/8 inch (3.2 mm) inside diameter or 0.015 inch (0.4 mm) thickness
2. Product Technical Specifications
2.1 Chemical Composition
The chemical composition requirements for ASME SA 192 / ASTM A192 seamless carbon steel tubes are shown in the following table:
| Element | Content Range (%) |
|---|---|
| Carbon (C) | 0.06~0.18 |
| Manganese (Mn) | 0.27~0.63 |
| Phosphorus (P) | ≤0.035 |
| Sulfur (S) | ≤0.035 |
| Silicon (Si) | ≤0.25 |
Note: All values shall be based on heat analysis.
2.2 Mechanical Properties
The mechanical property requirements for ASME SA 192 / ASTM A192 seamless carbon steel tubes are shown in the following table:
| Property | Requirement |
|---|---|
| Minimum Tensile Strength | 47 ksi [325 MPa] |
| Minimum Yield Strength | 26 ksi [180 MPa] |
| Minimum Elongation (2 inches) | 35% |
| Maximum Brinell Hardness (Wall thickness ≥0.200 inch [5.1 mm]) | 137 HBW |
| Maximum Rockwell Hardness (Wall thickness <0.200 inch [5.1 mm]) | 77 HRBW |
Note: Mechanical property requirements do not apply to tubing smaller than 1/8 inch [3.2 mm] inside diameter or 0.015 inch [0.4 mm] thickness.
2.3 Dimensional Specifications
2.3.1 Wall Thickness Tolerances
| Tube Type | Wall Thickness Tolerance (%) |
|---|---|
| Seamless cold-finished tubes, OD ≤1½ inch (38.1 mm) | +20, 0 |
| Seamless cold-finished tubes, OD >1½ inch (38.1 mm) | +22, 0 |
2.3.2 Outside Diameter Tolerances
| Outside Diameter Range | Permissible Variations (inch [mm]) |
|---|---|
| <1 inch (25.4 mm) | ±0.004 [0.10] |
| 1 to 1½ inch (25.4 to 38.1 mm) | ±0.006 [0.15] |
| >1½ to 2 inch (38.1 to 50.8 mm) | ±0.008 [0.20] |
| >2 to 2½ inch (50.8 to 63.5 mm) | ±0.010 [0.25] |
2.3.3 Length Options
- Single random length
- Double random length
- Maximum length as per customer's actual request (up to 27 meters)
3. Manufacturing Process and Quality Control
3.1 Manufacturing Method
ASME SA 192 / ASTM A192 tubes are manufactured using the seamless process and can be either hot-finished or cold-finished. The seamless process ensures uniform properties throughout the entire cross-section of the tube, without the potential weaknesses associated with welds, making it particularly suitable for high-pressure applications.
3.2 Heat Treatment Requirements
- 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
Heat treatment is particularly important for cold-finished tubes as it eliminates internal stresses generated during the cold-working process, restores material ductility, and ensures stable performance of the tubes in high-pressure and high-temperature environments.
3.3 Quality Testing and Inspection
ASME SA 192 / ASTM A192 tubes must undergo the following necessary mechanical tests:
- Flattening Test: Evaluates the tube's plastic deformation capability and weld quality
- Flaring Test: Examines the tube's performance during radial expansion
- Hardness Test: Ensures the tube's hardness falls within the specified range
- Hydrostatic Test: Verifies the tube's sealing properties and pressure-bearing capacity
- Tensile Test: Determines the tube's tensile strength, yield strength, and elongation
3.4 Quality Certification
- Mill test certificates in accordance with EN10204.3.1 standard
- Testing shall be conducted according to A 450/A 450M
- IBR certification (Indian Boiler Regulations) available upon request
4. Application Areas and Case Studies
4.1 Main Application Industries
Power Industry
Boiler systems and steam pipelines in thermal power plants
Petrochemical Industry
High-pressure heat exchange equipment in refineries and chemical plants
Manufacturing Industry
Industrial production facilities requiring high-pressure steam
Energy Sector
Various energy conversion and transmission systems
4.2 Typical Application Cases
As boiler tubes, withstanding high-temperature and high-pressure steam
Used in power plants to increase steam temperature, improving energy efficiency
Used in chemical plants for heat transfer and energy recovery
5. Special Product Forms
ASME SA 192 finned tubes are heat exchange elements that increase the outer surface area by adding fins to the tube surface, improving heat exchange efficiency. Key features include:
- Increased heat exchange surface area, improving thermal efficiency
- Available in square finned heat exchanger tubes
- Suitable for various heat exchangers and cooling systems
ASME SA 192 U-bend tubes are primarily used in heat exchangers and boilers, with the following features:
- Available in different bend radius options
- Reduced connection points, lowering leakage risks
- Accommodates thermal expansion, improving system reliability
ASME SA 192 standard also offers various complementary fittings, including:
- Butt-welded elbows
- Various sizes of tube fittings
- Customized connectors
6. International Standards Comparison
ASME SA 192 / ASTM A192 has multiple equivalent standards worldwide, with the main correspondences as follows:
| Standard System | Equivalent Standard Number |
|---|---|
| DIN | 17175 Grade St 35.8 |
| EN | P235GH Grade 10216-2 |
| BS | BS 3059 Part II |
| NFA | A 49-213 Grade TU 37 F |
| JIS | D3563 / G3461 |
| UNS | K01201 |
| Old British Standard | CFS 320 |
| German Standard Number | 1.0305 |
| Belgian Standard | 837 |
| Italian Standard | 5462 |
7. Ordering Guidelines
7.1 Required Ordering Information
When ordering ASTM A192/ASME SA192 seamless carbon steel tubes, the following information should be included:
1. Quantity
Feet, meters, or number of lengths
2. Material name
Seamless tubes
3. Manufacturing method
Hot-finished or cold-finished
4. Dimensions
Outside diameter and minimum wall thickness
5. Length
Specific or random
6. Optional requirements
Any special requirements
7. Test report requirements
See section on Certification of Specification A 450/A 450M
8. Specification designation
ASTM A192/ASME SA192
9. Special requirements
Any additional requirements
7.2 Common Stock Specifications
We maintain stock of ASME SA 192 / ASTM A192 seamless carbon steel tubes in the following specifications:
- Outside diameter range: 1/2 inch to 7 inches (12.7 mm to 177.8 mm)
- Wall thickness range: 0.085 inch to 1.000 inch (2.2 mm to 25.4 mm)
- Nominal bore sizes: 15NB to 600NB
8. Product Identification and Packaging
8.1 Identification Method
- Paint marking on tube ends
- Bundle tags containing specifications, batch number, standard number, etc.
8.2 Packaging Form
- Hexagonal bundles or round bundles tied with steel strip
- Bundle weight: According to customer requirements, up to 5000 kg
- Each bundle is furnished with three tags
9. Warranty and Services
9.1 Quality Assurance
- All products comply with ASME SA 192 / ASTM A192 standard requirements
- Comprehensive quality assurance documents and test reports provided
- Product warranty period: 12 months
9.2 Technical Support
- Comprehensive technical consulting services
- Assistance in selecting the most suitable product specifications for customer applications
- Installation and usage recommendations
10. Contact Information
Sales Department
Email: sales@sunnysteel.com
Phone: +86-86-21-33780199
Email: sales@sunnysteel.com
Phone: +86-86-21-33780199
Technical Support
Email: webmaster@sunnysteel.com
Fax: +86-139-16927033
Email: webmaster@sunnysteel.com
Fax: +86-139-16927033
Website: www.sunnysteel.com
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