At Solitaire Fittings, we are a leading ASTM A403 WP 347H Stainless Steel Buttweld Fittings Manufacturer in India and a trusted global supplier of premium-quality pipe fittings. Our wide range of Stainless Steel 347H Buttweld Fittings is designed for industries that demand excellent mechanical strength, superior corrosion resistance, and durability even under high-temperature and high-pressure environments.
What Are Stainless Steel 347H Buttweld Fittings?
We are the manufacturers of a full line of Stainless Steel 347H Buttweld Fittings for high pressure and high temperature pipe systems. These items are manufactured in compliance with international quality standards like ASTM A403 Stainless Steel 347H Pipe Fittings, ASME SA 403 WP347H Seamless Pipe Fittings and are known for their high durability, corrosion resistance and weldability.
Our product range includes:
- 90 Degree Elbows
- 45 Degree Elbows
- Long Radius Elbows
- Short Radius Elbows
- Equal Tees
- Reducing Tees
- Concentric Reducers
- Eccentric Reducers
- Pipe Caps
- Long Stub Ends
- Short Stub Ends
- Pipe Bends
- ➤ Introduction to SS 347H Buttweld Fittings?
- ➤ What Are Stainless Steel 347H Buttweld Fittings?
- ➤ Key Features of 347H Buttweld Fittings?
- ➤ Types of 347H Buttweld Fittings?
- ➤ Monel 401 Specification
- ➤ Chemical Composition of Alloy 401 Flanges
- ➤ Mechanical Properties of Monel 401 Flanges
- ➤ Weight Chart of Monel 401 Flanges
- ➤ Advantages of 401 flange
- ➤ Applications of ASTM B564 Monel 401 Flanges
- ➤ Why Choose Our Monel 401 Flanges?
- ➤ Quality Assurance & Testing
- Oil & Gas Processing
- Petrochemical Plants
- Power Generation
- Fertilizer Industries
- Chemical Processing
- Heat Exchangers
- Pressure Piping Systems
- High resistance to oxidation and intergranular corrosion
- Excellent strength and durability in high-temperature service
- Superior creep strength due to higher carbon content
- Cost-effective and long-lasting compared to standard stainless steel fittings
- Leak-proof welded joints with smooth internal surfaces for better flow
- Compliance with international standards like ASTM A403, ASME SA 403, ANSI B16.9
- Available in 90° and 45° angles.
- Used to change the flow direction of pipelines.
- Protects pipe ends from damage and contamination.
- Commonly used in pipeline closures.
- Connects pipes of different diameters.
- Ensures smooth flow without pressure loss.
- Distributes flow evenly in three directions.
- Available in multiple sizes to suit piping layouts.
- Allows smooth directional changes in pipelines.
- Available in long radius and short radius designs.
- Used with flanges for quick installation and disassembly.
- Distributes flow in four directions.
- Widely used in high-pressure systems.
- Oil & Gas Refineries – for high-pressure pipelines and heat exchangers
- Petrochemical & Chemical Processing Plants – for corrosive fluid transport
- Power Generation – for boiler piping, superheaters, and reheaters
- Marine & Shipbuilding Industry – due to resistance to seawater corrosion
- Pharmaceutical & Food Industry – hygienic pipelines requiring durability
- Aerospace & Defense Applications – for high-strength, temperature-resistant pipelines
- Excellent High Temperature Strength
- Superior Corrosion Resistance
- Excellent Weldability
- Long Service Life
- Dimensional Accuracy
- SS 304 Buttweld Fittings
- SS 316 Buttweld Fittings
- Stainless Steel 321 Fittings
- SS 310 Buttweld Fittings
- SS 347 Buttweld Fittings
- SS 317 Buttweld Fittings
- Leading Manufacturer in India – With decades of experience, Solitaire Fittings is a trusted ASTM A403 WP 347H Stainless Steel Buttweld Fittings Manufacturer in India.
- Global Exporter – We are recognized among the top 347H SS Industrial Pipe Fittings Distributors worldwide.
- Certified Quality – Our fittings comply with ASTM, ASME, ANSI, DIN, and ISO standards.
- Wide Range – From SS 347H Elbow to ANSI B16.9 SS 347H Pipe Cap, we stock a complete inventory.
- Custom Solutions – We manufacture fittings as per customer designs and project requirements.
- On-time Delivery – Our efficient logistics ensure timely delivery across India, the Middle East, Europe, Asia, and the USA.
Table of Contents
What Are Stainless Steel 347H Buttweld Fittings?
SS 347H Pipe Fittings are stabilized austenitic stainless steel fittings that incorporate columbium and tantalum for enhanced resistance to carbide precipitation. Grade 347H stainless steel is a high carbon variant of grade 347 with superior creep resistance and higher strength at increased temperatures.
These fittings are widely used in:
Key Features of 347H Buttweld Fittings
Types of Stainless Steel 347H Buttweld Fittings
At Solitaire Fittings, we manufacture and supply a complete range of Stainless Steel 347/347H Buttweld Fittings in different shapes, sizes, and pressure ratings:
➤ SS 347H Elbow
➤ ANSI B16.9 SS 347H Pipe Cap
➤ Reducers (Concentric & Eccentric)
➤ Tees (Equal & Unequal)
➤ ASME SA 403 SS 347H Pipe Bend
➤ Stub Ends & Lap Joints
➤ Cross Fittings
Applications of Stainless Steel 347H Buttweld Fittings
These fittings are widely used in industries that demand strength, heat resistance, and corrosion protection. Some major applications include:
Specifications Chart for ASTM A403 WP 347H Stainless Steel Buttweld Fittings
| Standard / Specification | Description |
|---|---|
| Material Grade | Stainless Steel 347H / S34709 |
| Standard | ASTM A403 / ASME SA403 |
| Type | Seamless / Welded / Fabricated |
| Size Range | ½” NB to 48” NB |
| Wall Thickness | SCH 5 to SCH XXS |
| Pressure Rating | SCH 10, 20, 40, 80, 160 |
| End Type | Beveled End |
| Manufacturing Method | Hot Formed / Cold Formed |
| Surface Finish | Pickled, Annealed, Polished |
| Testing | PMI, Hydro Test, Radiography, IGC |
Mechanical Properties of SS 347H Buttweld Fittings
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength (min) | 515 MPa | 74,700 psi |
| Yield Strength (0.2% offset, min) | 205 MPa | 29,700 psi |
| Elongation (min) | 40% | 40% |
| Hardness (Brinell, max) | 217 HB | 217 HB |
| Impact Strength | Excellent | Excellent |
Chemical Composition – SS 347H (UNS S34709)
| Element | Composition % |
|---|---|
| Carbon (C) | 0.04 – 0.10 |
| Manganese (Mn) | ≤ 2.0 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | ≤ 0.75 |
| Chromium (Cr) | 17.0 – 19.0 |
| Nickel (Ni) | 9.0 – 13.0 |
| Columbium + Tantalum (Cb + Ta) | 10 x C min – 1.0 |
| Iron (Fe) | Balance |
Physical Properties – Stainless Steel UNS S34700 Pipe Elbow
| Property | Value |
|---|---|
| Density | 7.96 g/cm³ |
| Melting Range | 1398 – 1446 °C |
| Specific Heat Capacity | 500 J/kg·K |
| Thermal Conductivity (at 100 °C) | 16.3 W/m·K |
| Electrical Resistivity | 0.000072 Ω·cm (at 20 °C) |
| Modulus of Elasticity | 193 GPa |
Stainless Steel 347 vs 347H Buttweld Fittings
| Property | SS 347 | SS 347H |
|---|---|---|
| Carbon Content | Low Carbon | Higher Carbon (0.04–0.10%) |
| Strength | Good | Higher creep and tensile strength |
| High-Temperature Resistance | Suitable up to 870°C | Superior performance above 1000°F (538°C) |
| Applications | General purpose | High-temperature, high-pressure environments |
Stainless Steel 347H weight chart
| Fitting Type | Size | SCH 40 Weight |
|---|---|---|
| 90° Elbow LR | 2” | 1.30 kg |
| Equal Tee | 2” | 1.75 kg |
| Concentric Reducer | 3” x 2” | 1.10 kg |
| Eccentric Reducer | 4” x 3” | 1.90 kg |
| Pipe Cap | 2” | 0.65 kg |
Advantages of Using 347H Buttweld Fittings
Related Stainless Steel Fittings
Why Choose Solitaire Fittings for Stainless Steel 347H Buttweld Fittings?
Stainless Steel 347H Buttweld Fittings Manufacturer & Supplier in India
If you’re looking for Stainless Steel 347/347H Buttweld Fittings, SS 347H Elbows, ANSI B16.9 SS 347H Pipe Cap, ASME SA 403 SS 347H Pipe Bend, or any other related fittings, Solitaire Fittings is your one-stop solution.
Frequently Asked Questions
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