Stainless Steel 316H Buttweld Fittings are ASTM A403 WP316H stainless steel grade high temperature resistant pipe fittings. They are utilized extensively in the petrochemical, refinery, power generating, heat exchanger and high pressure pipe systems for their great creep strength, corrosion resistance and excellent weldability. Types most commonly used are elbows, tees, reducers, caps, stub ends and crosses made to ASME B16.9.
Manufacturer of SS 316H Buttweld Fittings in India
We are a trustworthy SS 316H Buttweld Fittings Manufacturer delivering top-grade fittings for high temperature and corrosive industrial applications. Our collection of ASTM A403 WP316H Buttweld Fittings are constructed from high grade raw materials and certified to international quality standards ensuring dimensional accuracy, durability and leak proof performance.
Being a reputed Stainless Steel 316H Fittings Supplier, we offer fittings in seamless and welded forms that are suited for industries like:
- Oil & Gas
- Chemical Processing
- Power Plants
- Heat Exchangers
- Petrochemical Plants
- Marine Applications
- Food Processing
- Pharmaceutical Industries
Our products are available in customized sizes, schedules, wall thicknesses, and specifications to meet diverse project requirements worldwide.
What are Stainless Steel 316H Buttweld Fittings?
SS 316H Pipe Fittings are pipe connection components manufactured from high carbon stainless steel grade 316H. The “H” designation indicates higher carbon content, which improves high-temperature strength and creep resistance.
These fittings are designed for joining pipes through welding methods to provide strong and permanent connections in industrial piping systems.
Key Benefits of SS 316H Buttweld Fittings- Excellent corrosion resistance
- High-temperature strength
- Superior creep resistance
- Good weldability
- Long service life
- Excellent mechanical properties
- Suitable for pressure applications
- Smooth flow characteristics
Table of Contents
- ➤ What are Stainless Steel 316H Buttweld Fittings?
- ➤ Types of ASTM A403 WP316H Buttweld Fittings
- ➤ ASTM A403 WP316H Buttweld Fittings Specifications
- ➤ ASTM A403 WP316H Chemical Composition
- ➤ ASTM A403 WP316H Mechanical Properties
- ➤ ASTM A403 WP316H Dimensions
- ➤ SS 316H Buttweld Fittings Weight Chart
- ➤ Applications of SS 316H Pipe Fittings
- ➤ Buy 316H Stainless Steel Buttweld Fittings
- ➤ Why Choose ASTM A403 WP316H Pipe Fittings?
Types of ASTM A403 WP316H Buttweld Fittings
We manufacture and supply a complete range of ASME B16.9 SS 316H Fittings including:
➤ SS 316H Elbow
Used to change piping direction at 45°, 90°, and 180° angles.
➤ SS 316H Tee
Allows branch flow connection from the main pipeline.
➤ SS 316H Reducer
Used to connect pipes of different diameters.
➤ SS 316H Pipe Cap
Installed at pipe ends to stop fluid flow.
➤ SS 316H Stub End
Used with lap joint flanges for easy dismantling.
➤ SS 316H Cross
Provides four-way pipe connections.
➤ SS 316H Bend
Designed for smooth directional changes in piping systems.
SS 316H Seamless Buttweld Fittings
Our SS 316H Seamless Buttweld Fittings are manufactured from seamless pipes to deliver higher strength and pressure handling capacity. These fittings are widely preferred for critical applications where leakage prevention and structural integrity are essential.
Advantages of Seamless Fittings- Better pressure resistance
- Uniform grain structure
- No weld defects
- Improved corrosion resistance
- Longer operational life
SS 316H Welded Pipe Fittings
We also supply SS 316H Welded Pipe Fittings for applications requiring cost-effective piping solutions. Welded fittings are manufactured using high-quality welded pipes with excellent dimensional consistency.
Features of Welded Pipe Fittings- Economical option
- Available in large sizes
- Excellent finish
- Easy installation
- Suitable for low and medium pressure systems
ASTM A403 WP316H Buttweld Fittings Specifications
| Specification | Details |
|---|---|
| Product Name | Stainless Steel 316H Buttweld Fittings |
| Material Grade | SS 316H |
| UNS Number | UNS S31609 Pipe Fittings |
| DIN Number | DIN 1.4919 Buttweld Fittings |
| Standard | ASTM A403 WP316H |
| Dimensions | ASME B16.9, MSS SP-43 |
| Type | Seamless / Welded / Fabricated |
| Size Range | ½” NB to 48” NB |
| Wall Thickness | SCH 5S to SCH XXS |
| Form | Elbow, Tee, Reducer, Cap, Stub End |
| End Type | Beveled End |
| Pressure Rating | SCH 10 to SCH 160 |
| Manufacturing Method | Hot Formed / Cold Formed |
| Testing | PMI, Hydro Test, Radiography, IGC |
ASTM A403 WP316H Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa min |
| Yield Strength | 205 MPa min |
| Elongation | 40% min |
| Hardness | 217 HB (max) |
| Density | 8.0 g/cm³ |
| Melting Point | 1375 – 1400°C |
ASTM A403 WP316H Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.04 – 0.10 |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Manganese (Mn) | 2.0 Max |
| Silicon (Si) | 0.75 Max |
| Phosphorus (P) | 0.045 Max |
| Sulfur (S) | 0.03 Max |
| Nitrogen (N) | 0.10 Max |
| Iron (Fe) | Balance |
ASTM A403 WP316H Dimensions
ASTM A403 WP316H Dimensions Table
| Nominal Pipe Size | Outside Diameter | Center to End (90° Elbow) |
|---|---|---|
| 1/2" | 21.3 mm | 38 mm |
| 1" | 33.4 mm | 38 mm |
| 2" | 60.3 mm | 76 mm |
| 4” | 114.3 mm | 152 mm |
| 6” | 168.3 mm | 229 mm |
| 8” | 219.1 mm | 305 mm |
| 10” | 273.0 mm | 381 mm |
| 12” | 323.8 mm | 457 mm |
SS 316H Buttweld Fittings Weight Chart
| Size | SCH 40 Weight (Kg) |
|---|---|
| ½” Elbow | 0.12 |
| 1" Elbow | 0.25 |
| 2" Elbow | 0.85 |
| 4" Elbow | 3.20 |
| 6" Elbow | 7.40 |
| 8" Elbow | 14.50 |
Applications of SS 316H Pipe Fittings
Industries Using SS 316H Buttweld Fittings
These fittings are extensively used in:
- Refineries
- Offshore Platforms
- Fertilizer Plants
- Heat Transfer Systems
- Pressure Vessels
- LNG Plants
- Desalination Plants
- Nuclear Power Plants
- Chemical Processing Industries
The higher carbon content of 316H makes it especially suitable for elevated temperature services.
Related Stainless Steel Fittings
We also supply:
- Stainless Steel 304 Buttweld Fittings
- Stainless Steel 316 Buttweld Fittings
- Stainless Steel 321 Pipe Fittings
- Stainless Steel 347H Buttweld Fittings
- SS 309H Buttweld Fittings
- SS 6MO Buttweld Fittings
- ASTM A403 WPS31254 Buttweld Fittings
Buy 316H Stainless Steel Buttweld Fittings
If you are looking to Buy 316H Stainless Steel Buttweld Fittings, we provide reliable solutions with competitive pricing, fast delivery schedules, and complete documentation support.
Our team assists customers with:
- Technical guidance
- Material selection
- Custom dimensions
- Bulk project requirements
- Export packaging
- Third-party inspection
As a global SS 316H Pipe Fittings Exporter, we supply products to clients across:
- UAE
- Saudi Arabia
- Qatar
- USA
- Europe
- Singapore
- South Africa
- Australia
Why Choose ASTM A403 WP316H Pipe Fittings?
Our ASTM A403 WP316H Buttweld Fittings are manufactured with strict quality control and advanced production methods. Every fitting undergoes multiple inspections to ensure high reliability in industrial operations.
Quality Tests Performed- Positive Material Identification (PMI)
- Hydrostatic Testing
- Ultrasonic Testing
- Radiography Testing
- Intergranular Corrosion Testing
- Dimensional Inspection
- Hardness Test
Frequently Asked Questions
Request Your Stainless Steel 316H Buttweld Fittings Quote Today!

