ASTM A234 (ASME SA234) is a standard specification of carbon and alloy steel pipe fittings for moderate and high temperature services. This standard covers a range of buttweld fittings like elbows, tees, reducers, and caps, as well as some socket welding and threaded options.
Common Grades and Why They Matter
ASTM A234 pipe fittings commonly used materials are ASTM A234 Grade WPB, WPC, WP5, WP9, WP11, WP22 and WP91. ASTM A234 standard covers the butt-welded pipe fittings of Elbow, Tee, Reducer, Cap, and Cross, and some socket welding, threaded pipe fittings.
Our Extensive Buttweld Fittings Range:
We offer a comprehensive selection of buttweld fittings to meet your project’s precise needs:
Grades: ASTM A234 Grade WPB, WPC (Carbon Steel)
Sizes: 1/2” to 48” (ASME B16.9)
Wall Thickness: SCH 10 to SCH XXS (ASME B36.10 compliant)
Pressure Ratings: Class 150 to 2500
Standards: ASME B16.9, ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97.
Chemical Composition & Mechanical Properties
| Grade | ASTM A234 WPB | ASTM A234 WPC | ASTM A234 WP1 | ASTM A234 WP11 | ASTM A234 WP22 | ASTM A234 WP91 |
| Carbon (C) | ≤ 0.30% | ≤ 0.35% | 0.28-0.33% | 0.05-0.15% | 0.05-0.15% | 0.08-0.12% |
| Manganese (Mn) | 0.29-1.06% | 0.29-1.06% | 0.30-0.80% | 0.30-0.60% | 0.30-0.60% | 0.30-0.60% |
| Phosphorus (P) | ≤ 0.05% | ≤ 0.05% | ≤ 0.030% | ≤ 0.030% | ≤ 0.030% | ≤ 0.020% |
| Sulfur (S) | ≤ 0.058% | ≤ 0.058% | ≤ 0.030% | ≤ 0.030% | ≤ 0.030% | ≤ 0.010% |
| Silicon (Si) | ≤ 0.40% | ≤ 0.40% | 0.10-0.50% | 0.50-1.00% | 0.50-1.00% | 0.20-0.50% |
| Chromium (Cr) | – | – | 0.40-0.65% | 1.00-1.50% | 1.90-2.60% | 8.00-9.50% |
| Molybdenum (Mo) | – | – | 0.45-0.65% | 0.44-0.65% | 0.87-1.13% | 0.85-1.05% |
| Vanadium (V) | – | – | – | – | – | 0.18-0.25% |
| Nitrogen (N) | – | – | – | – | – | 0.03-0.07% |
| Nickel (Ni) | – | – | – | – | – | ≤ 0.40% |
Why Choose ASTM A234 Buttweld Fittings?
ASTM A234 Buttweld Fittings are a top choice for high-temperature and high-pressure environments due to several key benefits:
Exceptional Strength: Ideal for high-pressure applications.
Versatile: Performs well in both high and low-temperature conditions.
Excellent Weldability: Perfect for complex piping systems requiring on-site welding.
Considerations:
* Higher Initial Cost: Reflects the high-quality materials and rigorous manufacturing.
* orrosion Resistance: While some grades resist corrosion well, others might need extra protection in harsh settings.
Where You’ll Find ASTM A234 Pipe Fittings?
Their robust nature makes ASTM A234 pipe fittings indispensable across a multitude of industries:
1. Energy: Petrochemical, Oil & Gas Refining, Power Generation
2. Heavy Industry: Shipbuilding, Chemical Processing, Mining & Mineral Processing, Pulp & Paper
3. Infrastructure: Construction
4. Specialty: Food & Beverage, Pharmaceutical
Specifically, ASTM A234 WPB carbon steel fittings are widely used in chemical equipment, boiler and exchanger manufacturing, refineries, and more.
JSFITTINGS: Your Trusted Industry Pipeline Fittings Partner
JSFITTINGS is a recognized manufacturer and exporter of ASME SA234 buttweld fittings. We offer a wide range of materials, sizes, finishes, and metric dimensions to perfectly match your specifications.
Our Product Range Includes:
ASTM A234 Grade WPB LR Elbow
ASTM A234 Grade WPB SR Elbow
ASTM A234 Grade WPB Flange
ASTM A234 Grade WPB Reducer
ASTM A234 Grade WPB Cap
Feel free to contact us for more details!
Email: admin@jsfittings.com
WhatsApp: +8618003119682
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