Description
Table Of Content
309S Stainless Steel Fittings
309S Stainless Steel Pipe Fittings are manufactured from a low-carbon austenitic stainless steel grade, designed to deliver superior performance in high-temperature and corrosive service environments. With high chromium and nickel content, these fittings provide outstanding resistance to oxidation, scaling, and chemical attack, even at temperatures up to 1000°C. The low carbon content enhances weldability and minimizes carbide precipitation, making 309S fittings ideal for fabrication and long-term service.
We offer a full range of 309S stainless steel pipe fittings, including elbows, tees, reducers, caps, stub ends, and customized fittings, produced in compliance with ASTM A403 / ASME SA403 standards and dimensional specifications such as ANSI/ASME B16.9, B16.28, and MSS-SP-43. Our fittings are widely used in petrochemical plants, oil & gas pipelines, power generation, boilers, furnaces, and heat treatment equipment.
Specification Stainless Steel 309S Pipe Fittings
| Dimensions | ASME B16.28, MSS-SP-43, ASME/ANSI B16.9, BS4504, BS10, BS4504, BS1560, |
|---|---|
| Thickness | SCH10, SCH 80, SCH 100, SCH20, SCH30, STD SCH40, SCH 160, XXS, SCH60, XS, SCH 120, SCH 140, available with NACE MR 01-75 |
| Type | DN15-DN1200 |
| Connection | Welding |
| Bending Radius | R=2D, 3D, 5D, 6D, 8D, 1D, 10D or Custom |
| Manufacturing process | Press, Forge, Push, Cast, etc. |
| Specialized manufacturer of | Tees, Crosses, Reducers, 90º Elbows, Stub End, Pipe Bend, 45º Elbows, Pipe Cap |
Various Sizes of 309S SS Fittings
- ASTM A403 WP309S Seamless ButtWeld Fittings : 1/2 – 10 inch
- 309S SS Welded Pipe Fittings : 1/2″ – 48″
- ASME SA403 WP309S Fittings : ½” NB to 24″ NB
Available 309S Buttweld Fittings Stock list
| Stainless Steel 1.4833 Fittings | Stainless Steel 309S Pipe Fitting |
| 309S Stainless Steel 90 Degree Elbow | ASME SA403 WP309S End Cap |
| ASTM A403 WP309S 45 Degree Elbow | SS A403 WP309S Buttweld Fitting |
| UNS S30908 1D Elbow | 309S SS Short Stub End |
| SS A403 WP309S Stub End | Stainless Steel 1.4833 Pipe Cap |
| 309S Stainless Steel 3D Elbow | UNS S30908 End Cap |
| SS A403 WP309S 5D Elbow | Stainless Steel 309S Reducer |
| Stainless Steel 1.4833 Buttweld Fittings | ASME SA403 WP309S Pipe Bend |
| ASTM A403 WP309S Pipe Fittings | UNS S30908 Long Stub End |
| SS A403 WP309S Eccentric Reducer | ASME SA403 WP309S Long Radius Elbow |
| 309S SS Concentric Reducer | 309S Stainless Steel Short Radius Elbow |
| ASTM A403 WP309S Equal Cross | Stainless Steel 309S Pipe Cap |
| Stainless Steel 1.4833 Lateral Tee | ASME SA403 WP309S Cross Tee |
| 309S SS Reducing Cross | SS A403 WP309S Equal Cross |
| Stainless Steel 309S Equal Tee | UNS S30908 Stub End |
| 309S Stainless Steel Concentric Reducer | ASTM A403 WP309S 5D Elbow |
Chemical Composition of 309S Stainless Steel Fittings
| ELEMENT | SS 309S |
| NI | 12.0 – 15.0 |
| C | 0.08 max |
| MN | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| SI | 1.0 max |
| CR | 22.0 – 24.0 |
| MO | 0.75 max |
Mechanical Properties of SS 309S Pipe Fittings
| Condition & Grade | Tensile Strength | Yeild Strength | Elognation | Hardness |
|---|---|---|---|---|
| SS 309S | 75 (515) | 30 (205) | 35 | 90 HRB max |
ASME SA403 WP309S Seamless Fittings Equivalent grades
| Standard | Werkstoff Nr. | UNS |
| SS 309S | 1.4833 | S30908 |
