| Flanges Types | Slip On, Weld Neck, Long Weld Neck, Threaded, Blind, Companion, Lap Joint |
|---|---|
| Class | 150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160 |
| Size | 1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000 |
| Type | Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove |
ASTM A182 F321 Socket Weld Flanges Supplier in Saudi Arabia for Heat Resistant Applications
Steel Flange Mfg is a leading Stainless Steel Socket Weld Flanges Supplier in Saudi Arabia. offering high-quality flange solutions designed for secure, leak-proof, and high-pressure piping connections across industrial sectors. Stainless steel socket weld flanges are widely used in oil and gas plants, petrochemical facilities, power generation stations, chemical processing units, marine systems, and industrial fluid transportation networks where strength and reliability are critical. Manufactured from premium grades such as ASTM A182 F304, F304L, F316, and F316L, these flanges provide excellent corrosion resistance, dimensional accuracy, pressure-handling capability, and long service life. Their socket weld design allows the pipe to be inserted into the flange before welding, ensuring strong alignment and improved joint integrity. Available in multiple pressure classes, sizes, and specifications, these flanges comply with international standards and are suitable for demanding industrial environments. Through a trusted B2B Portal, customers can source quality-certified flange products with dependable supply, competitive pricing, and technical support for engineering and infrastructure projects.
Material & Grades of Stainless Steel Socket Weld Flanges
| Material | Grade / Standard | Specification | Type | Applications |
|---|---|---|---|---|
| Stainless Steel | ASTM A182 F304 | ASME B16.5 | Socket Weld Flange | General Industrial Piping |
| Stainless Steel | ASTM A182 F304L | ASME B16.5 | Low Carbon Socket Weld Flange | Food & Pharmaceutical Industries |
| Stainless Steel | ASTM A182 F316 | ASME B16.5 | Corrosion Resistant Socket Weld Flange | Chemical & Marine Applications |
| Stainless Steel | ASTM A182 F316L | ASME B16.5 | Low Carbon Socket Weld Flange | Oil & Gas Processing |
| Stainless Steel | ASTM A182 F321 | ASME B16.5 | High Temperature Socket Weld Flange | Power Plants & Heat Exchangers |
Key Features & Advantages
- Excellent Corrosion Resistance
- High Pressure Resistance
- Superior Weldability
- Leak-Proof Connection
- High Temperature Resistance
- Long Service Life
Chemical & Mechanical Properties
Grade Chromium (%) Nickel (%) Molybdenum (%) Carbon (%) Tensile Strength (MPa) Yield Strength (MPa) Hardness ASTM A182 F304 18–20 8–10.5 — 0.08 Max 515 Min 205 Min 201 HB Max ASTM A182 F304L 18–20 8–12 — 0.03 Max 485 Min 170 Min 201 HB Max ASTM A182 F316 16–18 10–14 2–3 0.08 Max 515 Min 205 Min 217 HB Max ASTM A182 F316L 16–18 10–14 2–3 0.03 Max 485 Min 170 Min 217 HB Max
| Grade | Chromium (%) | Nickel (%) | Molybdenum (%) | Carbon (%) | Tensile Strength (MPa) | Yield Strength (MPa) | Hardness |
|---|---|---|---|---|---|---|---|
| ASTM A182 F304 | 18–20 | 8–10.5 | — | 0.08 Max | 515 Min | 205 Min | 201 HB Max |
| ASTM A182 F304L | 18–20 | 8–12 | — | 0.03 Max | 485 Min | 170 Min | 201 HB Max |
| ASTM A182 F316 | 16–18 | 10–14 | 2–3 | 0.08 Max | 515 Min | 205 Min | 217 HB Max |
| ASTM A182 F316L | 16–18 | 10–14 | 2–3 | 0.03 Max | 485 Min | 170 Min | 217 HB Max |
Type of Sub-products
Frequently Asked Questions
What are the advantages of socket weld flanges?
Where are Stainless Steel Socket Weld Flanges commonly used?
Countries We Export
Saudi Arabia
Cities We Supply
Dammam
Jeddah
Mecca
Industries We Serve
Sugar
Oil And Gas Industries
Paper Mill
Power Plant
Bridge And Building
Aerospace Industries
Automobile Industry
Electrical Industry
Defense Industry
Construction & Fabrications
Ring Man Units
Railways

Gasket Industry
Pharmaceuticals Industry