Welcome to Solitaire Fittings, your trusted partner for top-quality Alloy Steel Fittings. Whether you're working in oil and gas, construction, power plants, or refineries, we have the right fittings to keep your systems running smoothly. We are a leading Alloy Steel Buttweld Pipe Fittings Manufacturer & Exporter, offering a wide range of products that are tough, long-lasting, and built to handle extreme conditions.
What Are Alloy Steel Fittings?
Alloy Steel Fittings are pipe fittings made from a special kind of steel called "alloy steel." This steel is made by adding elements like chromium, molybdenum, and nickel to carbon steel. These extra elements make the steel stronger, more resistant to heat, and better at fighting rust. These fittings are used to connect pipes in many industries. They help change the direction of flow, join different sizes of pipes, or stop the flow completely.
Features of Our Alloy Steel Fittings
OurAlloy Steel Buttweld Fittingsand Forged Fittings are known for the following:
- High Strength: Can handle high pressure and heavy loads.
- Corrosion Resistance: Ideal for use in chemical and marine environments.
- Heat Resistance: Perfect for high-temperature applications.
- Leak-Proof Joints: Especially in buttweld types.
- Long Life: Durable and requires less maintenance.
We use only high-grade raw materials and follow strict quality control measures to ensure that every product meets international standards like ASTM, ASME, ANSI, and DIN.
Types of Alloy Steel Fittings We Offer
At Solitaire Fittings, we offer a full range of Alloy Steel Pipe Fittings to meet all your needs. Here are the main types:
➤ Alloy Steel Buttweld Fittings
Our Alloy Steel Buttweld Fittings are strong and smooth. They are welded directly to the pipes, creating a solid connection that prevents leaks. These fittings are perfect for high-pressure and high-temperature environments. We offer:
- Alloy Steel Elbows
- Alloy Steel Tees
- Alloy Steel Reducers
- Alloy Steel Caps
- Alloy Steel Crosses
As trusted Alloy Steel Elbow Suppliers, we provide elbows in different angles like 45°, 90°, and 180°, helping you turn the flow in any direction.
➤ Alloy Steel Seamless Buttweld Pipe Fittings
Alloy Steel Seamless Buttweld Pipe Fittings are made from a single piece of alloy steel, with no welds or joints. This makes them stronger and safer for high-pressure systems. They are often used in industries like oil and gas, chemical plants, and power generation.
➤ Alloy Steel Welded Buttweld Pipe Fittings
These fittings are made by welding steel pieces together. Alloy Steel Welded Buttweld Pipe Fittings are perfect when you need large sizes or special shapes. They're cost-effective and reliable. Both seamless and welded fittings meet international standards like ASME, ASTM, and DIN.
➤ Alloy Steel Forged Fittings
Alloy Steel Forged Fittings are made by heating and shaping alloy steel into strong, compact forms. These fittings are used in small pipe systems, usually under high pressure. We offer forged fittings like:
- Socket Weld Fittings
- Threaded Fittings
- Forged Elbows
- Forged Tees
- Forged Couplings
Features of Our Alloy Steel Fittings
Our Alloy Steel Buttweld Fittings and Forged Fittings are known for the following:
- High Strength: Can handle high pressure and heavy loads.
- Corrosion Resistance: Ideal for use in chemical and marine environments.
- Heat Resistance: Perfect for high-temperature applications.
- Leak-Proof Joints: Especially in buttweld types.
- Long Life: Durable and requires less maintenance.
We use only high-grade raw materials and follow strict quality control measures to ensure that every product meets international standards like ASTM, ASME, ANSI, and DIN.
Applications of Alloy Steel Pipe Fittings
Alloy Steel Pipe Fittings are used in many industries where strong and heat-resistant materials are needed. Some common applications include:
- Oil and Gas Pipelines
- Power Plants
- Petrochemical Plants
- Refineries
- Boiler Systems
- Shipbuilding
- Fertilizer Plants
These fittings work well in harsh conditions, like high temperatures and strong chemicals.
Common Grades and Standards
We supply Alloy Steel Pipe Fittings in different grades and standards:
Common Grades:- ASTM A234 WP1
- ASTM A234 WP5
- ASTM A234 WP9
- ASTM A234 WP11
- ASTM A234 WP22
- ASTM A234 WP91
Each grade has different levels of strength and temperature resistance. For example, WP91 is often used in very high-temperature systems like boilers.
Standards We Follow:- ASTM / ASME A/SA 234
- ANSI B16.9 (for buttweld fittings)
- ANSI B16.11 (for forged fittings)
- MSS-SP 75
- DIN and EN standards
Why Choose Solitaire Fittings?
We are not just another manufacturer. Solitaire Fittings is a name you can trust for quality, service, and performance.
- Top-Quality Products: We use high-grade raw materials and modern machines to make strong and durable Alloy Steel Fittings. All our products go through strict quality checks before they are sent out.
- Wide Range of Products: From Alloy Steel Seamless Buttweld Pipe Fittings to Alloy Steel Forged Fittings, we have it all. You can find fittings in various sizes, shapes, and pressure ratings.
- Global Export Network: We are a well-known Alloy Steel Buttweld Pipe Fittings Manufacturer & Exporter. We supply our products to customers in the USA, Europe, Middle East, Asia, and Africa
- Fast Delivery: Time is money. That’s why we make sure your orders are delivered on time, every time.
- Custom Solutions: Need something special? We offer custom-made fittings based on your project’s needs. Just share your drawing or specification, and we’ll take care of the rest.
Schedule and Size Chart – Alloy Steel Fittings
| Nominal Pipe Size (NPS) | Outside Diameter (OD) | Schedule 40 (STD) | Schedule 80 (XS) | Schedule 160 |
|---|---|---|---|---|
| 1/2" | 21.3 mm | 2.77 mm | 3.73 mm | 4.78 mm |
| 3/4" | 26.7 mm | 2.87 mm | 3.91 mm | 6.02 mm |
| 1" | 33.4 mm | 3.38 mm | 4.55 mm | 6.35 mm |
| 1 1/2" | 48.3 mm | 3.68 mm | 5.08 mm | 7.14 mm |
| 2" | 60.3 mm | 3.91 mm | 5.54 mm | 8.74 mm |
| 3" | 88.9 mm | 5.49 mm | 7.62 mm | 11.13 mm |
| 4" | 114.3 mm | 6.02 mm | 8.56 mm | 13.49 mm |
| 6" | 168.3 mm | 7.11 mm | 10.97 mm | 18.26 mm |
| 8" | 219.1 mm | 8.18 mm | 12.7 mm | 23.01 mm |
| 10" | 273.0 mm | 9.27 mm | 15.09 mm | 28.58 mm |
| 12" | 323.9 mm | 9.53 mm | 17.48 mm | 33.32 mm |
Specifications Chart – Alloy Steel Pipe Fittings
| Standard | Description |
|---|---|
| ASTM A403 | Standard for WP-Wrought SS Pipe Fittings |
| ASTM A182 | Forged or Rolled Alloy & SS Fittings |
| ASME B16.9 | Factory-made Buttwelding Fittings |
| ASME B16.11 | Forged Fittings - Socket Weld & Threaded |
| MSS-SP-43 | SS Butt Welded Fittings for Low/Mod Pressure |
| DIN 2605 / 2615 / 2616 | European Standard for Fittings |
Mechanical Properties Chart – Alloy Steel (ASTM A234 WP11/WP22)
| Property | Value |
|---|---|
| Tensile Strength | 415 – 585 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 197 HB (Brinell Hardness) |
| Impact Strength | Good (especially at elevated temps) |
Chemical Composition Chart – ASTM A234 WP11 (Grade 1)
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.05 – 0.15 |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | ≤ 0.030 |
| Sulfur (S) | ≤ 0.030 |
| Chromium (Cr) | 1.00 – 1.50 |
| Molybdenum (Mo) | 0.44 – 0.65 |
Physical Properties Chart – Alloy Steel Fittings
| Property | Value | Density | 7.85 g/cm³ |
|---|---|
| Melting Point | ~1425–1510 °C |
| Thermal Conductivity | 24.9 W/m·K |
| Electrical Resistivity | 0.20 μΩ·m |
| Modulus of Elasticity | 200 GPa |
| Thermal Expansion (avg.) | 11.0 x 10⁻⁶ /°C |
| Corrosion Resistance | Moderate (improves with Chromium) |
Alloy Steel Elbow Suppliers – Why It Matters
Elbows are one of the most common fittings in any piping system. As top Alloy Steel Elbow Suppliers, we make sure every elbow is strong, smooth, and fits perfectly. Our elbows help direct flow without slowing it down or causing leaks.
Global Supplier – SS Pipe Fittings in India & Beyond
Though we are based in India, our reach is global. As a reliable SS Pipe Fittings Manufacturer & Supplier, we have served clients not just across India but also in countries like the UAE, Saudi Arabia, Australia, the USA, and more. Our logistics team ensures timely delivery and hassle-free shipping.
We provide:
- Long Radius Elbows
- Short Radius Elbows
- 180° Return Bends
Each type is available in both seamless and welded forms.
Get in Touch With Solitaire Fittings
Looking for high-quality Alloy Fittings at competitive prices? Partner with Solitaire Fittings – your one-stop solution for Alloy Steel Pipe Fittings in India. Whether you need standard fittings or customized parts, we’re here to help you every step of the way.
Request Your Alloy Fittings Quote Today!

