ASME B16.9 A335 P9/P11/P22/P91 Seamless 90° Gr P36 Pipe Elbow

• Customization: Available
• After-sales Service: Supply
• Warranty: Supply
• Model NO.: Alloy Steel Pipe Fittings
• Connection: Welding
• Shape: Equal
• Head Code: Round
• Angle: 90 Degree
• Wall Thickness: Sch40s
• Material: Alloy
• Technics: Hot-pressed
• Certification: ASME, ANSI, DIN, JIS, BS, GB, GS, KS
• Color: Black
• Bend Angle: 90 Degrees
• Bend Radius: Typically Lr Sometimes Sr
• Manufacturing Process: Seamless
• Material Type: Alloy Steel
• Material Standard: ASTM A335 / A335m
• Pressure Class: Sch 40, 80, 160, Xxs
• Governing Design Standard: ASME B16.9
• Common Material Grades: A335 P91, P22, P11, P9, P5, P92
• Nps: From 1/2" up to 48"
• End Preparation: Beveled Ends for Buttwelding
• Maximum Service Temperature: up to Approximately 1200°F
• Forming Process: Hot-Formed or Cold-Formed
• Typical Applications1: Petroleum Refineries, Chemical Process Plants
• Typical Applications2: Power Generation Plants, High-Temperature Industry
• Connection Type: Buttweld
• Transport Package: Wooden Case, Packed by Bundles with Plastic Bags
• Specification: alloy steel
• Trademark: EZS
• Origin: China
• Production Capacity: 200000ton/Year

Product Description

Product Description

ASME B16.9 A335 P9/P11/P22/P91 Seamless 90° GR P36 Pipe Elbow

This ASME B16.9 A335 P9/P11/P22/P91 Seamless 90° Pipe Elbow is a premium industrial fitting designed for high-temperature and high-pressure piping systems. Manufactured in compliance with ASME B16.9 standards, it ensures precise dimensional accuracy and reliable performance in critical applications. The elbow is made from ASTM A335 seamless alloy steel, with material grades including P9, P11, P22, and P91, providing excellent resistance to creep, oxidation, and thermal fatigue. Suitable for power generation, refinery, and chemical processing environments, this 90-degree long-radius (GR) elbow facilitates smooth directional changes while maintaining structural integrity under extreme operating conditions. Each unit is produced with beveled ends for secure buttwelding and undergoes strict quality controls, including heat treatment and material certification, guaranteeing durability and safety in Grade P36 service applications.

Advantages of Butt-Welding Fittings:  

Standards & Specifications: 

1. High Strength & Leak-proof – No weak points like threads. 

2. Smooth Flow – No internal obstructions. 

3. Suitable for High-Pressure/Temperature – Ideal for oil & gas, chemical plants, power plants.  

4. Long Service Life – Less prone to corrosion at joints.  

- ASME B16.9 (Factory-made wrought butt-welding fittings).  
- ASME B16.28 (Wrought steel butt-welding short radius elbows).  
- MSS SP-43 (Lightweight stainless steel fittings).  
- ASTM/ANSI/API Standards (Material-specific requirements).  

 Common Materials:  

Applications:  

- Carbon Steel (ASTM A234 WPB)  
- Stainless Steel (ASTM A403 WP304/316)  
- Alloy Steel (ASTM A234 WP5/WP9/WP11)  
- Duplex & Super Duplex (ASTM A790/A928)  

- Oil & Gas Pipelines  
- Chemical & Petrochemical Plants  
- Power Generation (Steam & Water Lines)  
- Shipbuilding & Offshore Platforms  
- HVAC & Water Treatment Systems  

Packaging & Shipping

Packed by bundles, plastic bags, wooden case etc.

All our products undergo individual inspection in compliance with specified standards prior to packaging. Only those that pass the inspection are packaged in accordance with export criteria.

Shipped by Sea, Air, Truck

All products of our products  can be transported by various means, such as full container shipping, less than container load shipping, air freight, etc. Our company will formulate the optimal transportation plan for each order to save customers' procurement costs

Company Profile

Premium Industrial Piping Solutions, Engineered for Excellence

EZ Steel Industrial Co.,Ltd is a leading manufacturer of high-performance industrial metal pipelines, specializing in alloy steel, carbon steel, stainless steel, and copper-nickel-based alloy products. With strategically located facilities in Cangzhou, Yangzhou, and Lishui, we deliver globally trusted piping solutions that combine cutting-edge technology, rigorous quality control, and unmatched expertise.

Empowering industries worldwide with reliable, efficient, and eco-conscious piping systems, EZ Steel Industrial Co., Ltd. is your strategic partner for mission-critical infrastructure. We deliver high-performance steel, stainless steel, and copper piping solutions for sectors including oil and gas, water treatment, HVAC, and renewable energy. Our systems are engineered to meet international standards for durability, safety, and sustainability.

With end-to-end support—from design and custom fabrication to logistics and service—we help reduce lifecycle costs, minimize environmental impact, and enhance operational resilience.

Partner with us to build future-ready infrastructure with expertise you can trust.

FAQ

Key Differences Between SW and BW Fittings

| Feature       | Socket-Weld (SW) | Butt-Weld (BW) |  
| Connection Type | Pipe inserted into socket | Pipe welded end-to-end |  
| Size Range    | NPS ½" to 4" (small bore) | NPS ½" to 48"+ (large bore) |  
| Strength      | Good for moderate pressure | Superior for high pressure/temperature |  
| Internal Flow | Slight restriction at socket | Smooth, uninterrupted flow |  
| Welding Process | Fillet weld around joint | Full-penetration groove weld |  
| Cost         | Lower (less welding prep) | Higher (more labor-intensive) |  
| Disassembly   | Difficult (welded) | Permanent (cutting required) |  

When to Use SW Over BW?  
- Small-diameter, high-pressure systems.  
- Where space constraints prevent BW flange use.  
- When threaded fittings are insufficient.