Amardeep Steel Center is a globally trusted manufacturer, supplier, and exporter of Stainless Steel 316 Butt weld Fittings, the workhorse of industrial piping systems where superior corrosion resistance is non-negotiable. Engineered to perform in aggressive environments, our fittings provide exceptional durability and reliability, especially against chlorides and industrial acids. We maintain an extensive inventory of ASTM A403 WP316 Fittings, including a full range of elbows, tees, and reducers, all produced to meet and exceed the most stringent international standards. Our commitment to metallurgical integrity and client success makes us the go-to source for critical piping components.
What Are Stainless Steel 316 Butt Weld Fittings?
Stainless Steel 316 Butt weld Fittings are crucial components used to connect, divert, or terminate piping systems by means of butt welding. This fabrication method involves welding the beveled ends of the fitting directly to the pipe, creating a solid, continuous metal structure that is as strong and leak-proof as the pipe itself.
The standout feature of Grade 316 (UNS S31600) is the intentional addition of molybdenum (typically 2-3%). This single element elevates its performance significantly beyond that of the more common 304 grade, giving 316 Stainless Steel Pipe Fittings their defining characteristics:
- Superior Corrosion Resistance: The molybdenum content provides robust resistance to pitting and crevice corrosion, particularly in environments containing chlorides (e.g., seawater, de-icing salts, and brines).
- Enhanced Resistance to Acids: It offers excellent resistance to a wide range of chemicals, including sulfuric, acetic, formic, and tartaric acids, as well as acid sulfates and alkaline chlorides.
- Good High-Temperature Strength: While not a dedicated high-temperature grade like 316H, standard SS 316 still offers better creep, stress-to-rupture, and tensile strength at elevated temperatures than Grade 304.
These properties make SS 316 Butt Weld Pipe Fittings an indispensable solution for marine, chemical processing, and pharmaceutical applications. As a world-class manufacturer, Amardeep Steel ensures every ASME SA403 WP316 Fitting delivers the long-term performance and reliability your operations depend on.
Table of Contents
- Stainless Steel 316 Butt weld Fittings Specifications
- Chemical Composition & Mechanical Properties of Stainless Steel 316 Butt weld Fittings
- Mechanical Properties of Stainless Steel 316 Butt weld Fittings
- Heat Treatment & Tolerances of Stainless Steel 316 Butt weld Fittings
- Dimensional Tolerances
- Types & Forms of Stainless Steel 316 Butt weld Fittings
- Applications & Industries Served of Stainless Steel 316 Butt weld Fittings
- Why Choose Amardeep Steel for Stainless Steel 316 Butt weld Fittings?
- Related Products
- Get a Competitive Price
Stainless Steel 316 Butt weld Fittings Specifications
Our ASTM A403 WP316 Fittings are manufactured in strict accordance with industry specifications to guarantee quality, safety, and seamless integration.
|
Specification |
Details |
|---|---|
|
Specification |
ASTM A403 / ASME SA403 |
|
Grade |
Stainless Steel 316 / UNS S31600 / WNR 1.4401 |
|
Dimensions |
ASME B16.9 316 Butt Weld Fittings, ASME B16.28, MSS-SP-43 |
|
Size Range |
1/2" NB to 48" NB (Seamless & Welded/Fabricated) |
|
Type |
Seamless / Welded / Fabricated |
|
Wall Thickness |
Sch 5s, Sch 10s, Sch 40s, STD, Sch 80s, XS, Sch 160s, Sch XXS |
|
Bending Radius |
R=1D, 2D, 3D, 5D, 6D, 8D, 10D, or Custom |
|
Forms |
Elbows, Tees, Reducers, Caps, Stub Ends, Bends, Crosses, Nipples |
Chemical Composition & Mechanical Properties of Stainless Steel 316 Butt weld Fittings
The exceptional reliability of our SS 316 BW Fittings is founded on a precisely controlled chemical composition and verified mechanical strength.
Chemical Composition (wt %)
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Ni |
Mo |
|---|---|---|---|---|---|---|---|---|
|
SS 316 (UNS S31600) |
0.08 max |
2.0 max |
0.75 max |
0.045 max |
0.030 max |
16.0-18.0 |
10.0-14.0 |
2.0-3.0 |
Mechanical Properties of Stainless Steel 316 Butt weld Fittings
|
Property |
Minimum Value |
|---|---|
|
Tensile Strength |
515 MPa (75,000 psi) |
|
Yield Strength (0.2% Offset) |
205 MPa (30,000 psi) |
|
Elongation (in 50mm) |
40% |
|
Hardness, Rockwell B |
95 HRB max |
|
Hardness, Brinell |
217 HBW max |
Heat Treatment & Tolerances of Stainless Steel 316 Butt weld Fittings
Our manufacturing protocol includes critical heat treatment processes and meticulous dimensional checks to ensure every fitting performs flawlessly.
Heat Treatment Requirements
All ASTM A403 WP316 Fittings are supplied in the solution-annealed condition. This heat treatment involves heating the material to a temperature range of 1040-1120°C (1900-2050°F) and then rapidly cooling it. This critical step dissolves any harmful carbide precipitates, relieves internal stresses from the forming process, and restores the material's maximum corrosion resistance and ductility.
Dimensional Tolerances
Adherence to dimensional tolerances is essential for efficient on-site installation. We manufacture our ASME B16.9 316 Butt Weld Fittings to the exact tolerances defined in the standard, guaranteeing consistency in:
- Center-to-face and end-to-end dimensions for predictable layouts.
- Angular accuracy for perfect alignment.
- Wall thickness uniformity for consistent pressure handling.
- Precision-machined end bevels for high-quality weld preparation.
This commitment to accuracy reduces fit-up time and ensures a smooth, cost-effective installation.
Types & Forms of Stainless Steel 316 Butt weld Fittings
Amardeep Steel Center offers a comprehensive selection of Stainless Steel 316 Butt weld Fittings to meet any piping design challenge.
- SS 316 Elbows (45°, 90°, 180°): The most common fittings, used to change the direction of flow. Available in Long Radius (LR) for smooth flow and Short Radius (SR) for compact layouts.
- SS 316 Tees (Equal & Reducing): Used to create a 90-degree branch from the main pipe run.
- SS 316 Reducers (Concentric & Eccentric): To join pipes of different diameters. Concentric reducers are for vertical lines, while eccentric reducers are used in horizontal lines to prevent air or sediment trapping.
- SS 316 Pipe Caps: To provide a permanent, leak-proof seal at the end of a pipeline.
- SS 316 Stub Ends: Paired with lap joint flanges to create an economical flanged connection that allows for easy rotational alignment of bolt holes.
- SS 316 Bends (3D, 5D, 10D): Offer a larger, more gradual turning radius than elbows, ideal for minimizing turbulence and pressure drop in sensitive or high-velocity systems.
- 316 Welded Pipe Fittings: For larger diameter requirements, we supply high-quality fabricated and 316 Welded Pipe Fittings that are 100% radiographed to ensure weld integrity and performance.
Applications & Industries Served of Stainless Steel 316 Butt weld Fittings
The superior corrosion resistance of UNS S31600 Fittings makes them the material of choice for a wide range of demanding industries:
- Marine & Coastal Applications: Unmatched performance in boat fittings, railings, and coastal architectural structures due to its resistance to saltwater corrosion.
- Pharmaceutical & Biotechnology: Essential for process piping where purity is paramount and equipment must withstand aggressive cleaning and sterilization agents.
- Chemical Processing: Used extensively for handling acetic acid, sulfuric acid, and other corrosive chemicals in reactors, tanks, and pipelines.
- Food & Beverage Industry: For equipment handling brines, acidic food products, and harsh cleaning solutions.
- Pulp & Paper Manufacturing: To resist corrosive liquors and bleaching agents used in the paper-making process.
- Oil & Gas Refining: In heat exchangers, condensers, and piping systems exposed to corrosive process streams.
- Water Treatment & Desalination: For pipelines and equipment handling chlorinated and brackish water.
Why Choose Amardeep Steel for Stainless Steel 316 Butt weld Fittings?
Choosing Amardeep Steel Center means selecting a supplier that is fully invested in your success.
- Manufacturing Excellence: We leverage advanced manufacturing technologies and premium raw materials to produce fittings with exceptional metallurgical purity, dimensional precision, and surface finish.
- Global Exports: As a seasoned exporter, we have a robust global logistics network, ensuring timely and secure delivery of our products to clients in the USA, Canada, UAE, Saudi Arabia, Europe, and Southeast Asia.
- Rapid Turnaround & Stock Availability: We maintain a vast inventory of standard Stainless Steel 316 Butt weld Fittings, enabling us to fulfill orders promptly and keep your critical projects on schedule.
- Uncompromising Quality Certification: Our operations are ISO 9001:2015 certified. Every fitting is supplied with a Mill Test Certificate (MTC) as per EN 10204 3.1, and we facilitate third-party inspections from world-renowned agencies like TUV, DNV, and Lloyd’s.
- Expert Technical Support: Our dedicated team of engineers and material specialists is available to provide expert guidance, helping you select the ideal solutions for your specific corrosive challenges.
Related Products
- Stainless Steel 316L Butt Weld Fittings
- Stainless Steel 316H Butt Weld Fittings
- Stainless Steel 316 Seamless Pipes
- Stainless Steel 316 Plates
- Stainless Steel 316 Round Bars
Get Your Stainless Steel 316 Butt weld Fittings Price
Ready to specify the industry's most trusted material for corrosion resistance? Contact us today for a fast and competitive price quote on our Stainless Steel 316 Butt weld Fittings. Our sales team is eager to assist with your project requirements.
Frequently Asked Questions (FAQ's)
1. What is the main difference between SS 316 and SS 304 fittings?
The key difference is the addition of molybdenum (2-3%) in Grade 316. This gives it significantly better resistance to pitting and crevice corrosion, especially in chloride-rich environments like seawater, compared to Grade 304.
2. Are Stainless Steel 316 Butt weld Fittings suitable for welding?
Yes, Grade 316 has excellent weldability. However, for welding heavy sections (thicker than 6mm), the low-carbon version, 316L, is preferred to avoid the risk of carbide precipitation and ensure maximum corrosion resistance in the as-welded condition.
3. What is dual-certified 316/316L?
Dual certification is an industry standard where the material meets the low carbon requirements of 316L (C ≤ 0.03%) while also meeting the higher strength requirements of standard 316. This provides the excellent weldability of 316L with the mechanical strength of 316, offering a versatile solution.
4. Can I use 316 fittings in high-temperature applications?
Standard 316 has good elevated temperature strength and can be used in intermittent service up to 870°C (1600°F). For continuous service at high temperatures, especially where creep strength is important, the high-carbon version, 316H, is the recommended grade.
5. What information is needed for an accurate price quote?
To provide you with the most accurate price, please specify the fitting type (e.g., 90° LR elbow), nominal pipe size, wall thickness or schedule (e.g., Sch 40S), required quantity, and any special testing or certification needs you may have.
