Carbon Steel Elbow — Factory Direct Supplier | Huaxia-Steel
Carbon steel elbows are the most widely used pipe fitting in industrial piping systems, enabling directional changes in pipelines while maintaining flow continuity. From oil and gas transmission to chemical processing and power plants, carbon steel elbows handle high-pressure, high-temperature service across virtually every heavy industry. Huaxia-Steel manufactures and supplies carbon steel elbows in sizes from 1/2″ to 48″ (DN15-DN1200), in all standard angles, radii, and wall thicknesses, with ASME, DIN, and EN certifications.
Product Overview
A carbon steel elbow is a curved pipe fitting that changes the direction of a pipeline by 45°, 90°, or 180°. Elbows are classified by bend angle, bend radius (short radius vs long radius), and manufacturing method (seamless, welded, or forged). The choice depends on the application’s pressure rating, temperature, fluid type, and code requirements.
| Specification | Value |
|---|---|
| Product type | Carbon steel pipe elbow (butt-weld) |
| Size range | 1/2″ – 48″ (DN15 – DN1200) |
| Wall thickness | SCH 10 – SCH XXS (up to 60mm) |
| Angles | 45°, 90°, 180° (returns) |
| Bend radius | SR (short radius, 1.0×D) / LR (long radius, 1.5×D) |
| End type | Butt-weld (BE), threaded (NPT), socket-weld (SW) |
| Manufacturing method | Seamless (cold-formed/hot-formed), welded |
| Surface finish | Black, anti-rust oil, galvanized, pickled |
| Certification | EN 10204 3.1 MTC, ABS, DNV, PED |
Specification Table: Dimensions & Weight
90° Long Radius (LR) Elbow — ASME B16.9
| NPS (inch) | DN | Outside Diameter (mm) | Center-to-End (mm) | SCH 40 Weight (kg) | SCH 80 Weight (kg) |
|---|---|---|---|---|---|
| 1/2″ | 15 | 21.3 | 38 | 0.15 | 0.22 |
| 1″ | 25 | 33.4 | 51 | 0.36 | 0.52 |
| 2″ | 50 | 60.3 | 76 | 1.00 | 1.45 |
| 4″ | 100 | 114.3 | 152 | 4.50 | 6.80 |
| 6″ | 150 | 168.3 | 229 | 11.20 | 16.50 |
| 8″ | 200 | 219.1 | 305 | 19.80 | 29.50 |
| 12″ | 300 | 323.9 | 457 | 46.50 | 68.00 |
| 16″ | 400 | 406.4 | 610 | 78.00 | 115.00 |
| 24″ | 600 | 609.6 | 914 | 195.00 | 285.00 |
45° Long Radius Elbow — ASME B16.9
| NPS (inch) | DN | Center-to-End (mm) | SCH 40 Weight (kg) |
|---|---|---|---|
| 2″ | 50 | 31 | 0.42 |
| 4″ | 100 | 63 | 1.85 |
| 6″ | 150 | 95 | 4.70 |
| 8″ | 200 | 127 | 8.30 |
| 12″ | 300 | 190 | 19.50 |
Center-to-end dimension follows ASME B16.9. Short radius (SR) elbows have center-to-end = 1.0×NPS. Weights are approximate and vary by manufacturer.
Available Material Grades
| Standard | Grade | Yield (MPa) | Tensile (MPa) | Best For |
|---|---|---|---|---|
| ASTM A234 | WPB | 240 | 415-585 | Most common; general purpose carbon steel fittings |
| ASTM A234 | WPW | 250 | 415-585 | Welded construction fittings |
| ASTM A420 | WPL6 | 240 | 415-585 | Low-temperature service (-46°C) |
| ASTM A860 | WPHY 42-70 | 290-485 | 415-585 | High-strength, transmission pipelines |
| DIN | St.37.0 / St.52.0 | 235-355 | 360-510 | European piping systems |
| EN | P235TR1 / P265GH | 235-265 | 360-510 | Pressure piping & boiler applications |
Manufacturing Standards
- ASME B16.9: Factory-made wrought butt-welding fittings (US standard)
- ASME B16.28: Short radius elbows and returns
- ASME B16.11: Forged steel socket-weld and threaded fittings
- DIN 2605: Steel butt-welding elbows (German standard)
- EN 10253: Butt-welding pipe fittings (European standard)
- GB/T 12459: Steel butt-welding fittings (Chinese standard)
- MSS-SP-43: Wrought stainless steel butt-welding fittings (lightweight)
- MSS-SP-79: Socket-welding reducer inserts
Applications
| Industry | Typical Application | Common Size Range | Common Grade |
|---|---|---|---|
| Oil & gas | Pipeline directional changes, manifold piping | 4″ – 48″ | A234 WPB, A860 WPHY 52 |
| Chemical processing | Process piping, reactor connections | 2″ – 12″ | A234 WPB, A420 WPL6 |
| Power generation | Steam lines, feedwater piping | 6″ – 24″ | A234 WPB |
| Shipbuilding | Ballast, fuel, and cooling water systems | 2″ – 16″ | A234 WPB |
| Water treatment | Transmission mains, treatment plant piping | 4″ – 36″ | A234 WPB |
| Construction | HVAC ducts, fire protection systems | 1/2″ – 8″ | A234 WPB (galvanized) |
| Food & beverage | Sanitary piping (usually stainless; carbon for utilities) | 1″ – 6″ | A234 WPB |
Quality Assurance
- EN 10204 3.1 MTC — chemical composition and mechanical properties per heat
- Hydrostatic testing — available on request for pressure-rated applications
- Dimensional inspection — ASME B16.9 tolerance: ±1.5mm on center-to-end, ±1° on angle
- Wall thickness verification — ultrasonic thickness gauge, ±12.5% per ASME B36.10M
- Non-destructive testing: Magnetic particle (MT), ultrasonic (UT), radiographic (RT) available
- Third-party inspection by SGS, BV, TÜV, DNV, or Lloyd’s Register
- Pressure certification: PED 2014/68/EU, ASME Section VIII, or ABS/DNV available
Packaging & Shipping
- Standard packaging: Wooden pallets or crates with individual fitting protection
- Export packaging: Anti-rust oil applied, VCI film wrap, plywood pallets (ISPM-15 compliant)
- Container loading: 20’GP can hold 5-15 tons depending on size mix; large fittings may require 40’GP
- Loading port: Shanghai, Ningbo, Tianjin
- Lead time: 10-20 days for standard sizes (2″-12″); 25-40 days for large sizes (14″+) or custom grades
- MOQ: 100 pcs for standard sizes; 500 pcs for small sizes (≤2″); custom dimensions negotiable
Why Choose Huaxia-Steel?
- Full size range from 1/2″ to 48″ — one-stop sourcing for entire piping project
- Seamless, welded, and forged options from a single supplier
- ASME, DIN, EN, and GB standards available — global project compliance
- Competitive pricing: seamless elbows from $0.80/pc (1/2″) to $800+/pc (24″+)
- ABS, DNV, Lloyd’s, and PED certifications available for marine and pressure applications
- Bilingual technical team for specification assistance
- Global shipping to 80+ countries
Get a Quote: Contact Huaxia-Steel with your elbow specifications — size, angle (45°/90°/180°), radius (SR/LR), schedule, grade, and quantity. We will provide a detailed quotation with material certification options and freight estimates within 24 hours.
