Applied Alloys International is Australia’s premier supplier of 253MA stainless steel (UNS S30815 – EN 1.4835). Engineered for extreme environments, our 253MA products offer superior oxidation resistance up to 1150°C, high creep strength, and excellent structural stability. We stock an extensive range of 253MA pipe, fittings, flanges, plate, and bar to meet stringent industrial requirements. Whether you need standard sizes or custom-fabricated components, we provide cost-effective, high-performance solutions for your next high-temperature project.
Contact our expert team for current stock availability.
253MA Products
253MA Pipe
253MA Stainless Steel Pipe (UNS S30815) (ASTM A213, A312 / A358, A409, A813, A814): Designed for high-temperature service, our 253MA pipe offers exceptional resistance to oxidation and creep deformation. Available in both seamless and welded configurations.
- Sizes: ½” – 24″ / 15mm – 600mm
- Schedule 10s – XXS
- ASTM A213, A312, EN 10297-2
253MA Fittings
High-Performance 253MA Fittings: Maintain structural integrity in extreme heat with our precision-engineered 253MA pipe fittings. Our range includes all standard schedules (10s, 40s, 80s, 160, and XXS). If you require specific dimensions for a complex project, we provide custom-fabricated 253MA fittings to ensure a perfect fit for your high-temperature systems.
- Sch 10s, 40s, 80s, 160, XXS
- Custom made
253MA Plate
Premium 253MA Stainless Steel Plate (ASTM A240, A240M, A480, A167): Engineered for durability in furnace components and heat exchangers, our 253MA plate (UNS S30815) provides superior stability up to 1150°C. Available in thicknesses from 2mm to 50mm, with dimensions up to 2000mm x 6000mm. All plates are supplied in accordance with ASTM A240 / A240M / A480 / A167 specifications. Request a quote for your specific sheet metal requirements today.
- 2mm – 50mm Thickness
- ASTM A240 / A240M / 480
253MA Flanges
Industrial 253MA Flanges: We supply high-grade 253MA stainless steel flanges designed to withstand high pressure and extreme thermal cycling. Our inventory spans Class 150 to Class 2500, covering schedules 10s through XXS. Need a non-standard configuration? Ask our experts about our custom-made 253MA flange solutions.
- Class 150 – Class 2500
- Sch 10s, 40s, 80s, 160, XXS
- Custom made
253MA Bar
253MA Stainless Steel Bar (ASTM A276 / ASME SA-276) (A479 / SA-479): Our comprehensive range of 253MA bar, including cold drawn, polished, centerless ground, and peeled finishes. With diameters ranging from 6mm to 350mm (3/16″ – 15″), we provide flexible supply options including random, fixed, and cut-to-length bars for immediate project use. Get in touch to check our current bar stock.
- 6mm – 350mm diameter | 3/16″ – 15″
- ASTM A276, 479 | ASME SA-276, SA-479
Valves to suit 253MA
High performance valves are available in ANSI class 150 – 2500 with sizes 50mm – 1200mm | 2″ – 48″
- Plug Valves
- Gate and Globe Valves
- O-Port Through Conduit Valves
- Custom made from Duplex, Super Duplex or Zeron 100 plate
253MA Standards
253MA – UNS S30815 – W. Nr./EN: 1.4835
ASTM: A240, A240M, A276, A312, A358, A409, A473, A479, A813, A814
ASME II A: SA-240, SA-182, SA-213, SA-249, SA-312, SA-479 Boiler & Pressure Vessel Approved
Welding Wire: UNS S30815 Base Metal/Solid Wire, W30816 Electrodes W. Nr./EN: 1.4835
253MA Chemical Composition
| C | Si | Mn | P | S | Cr | Ni | N | Ce |
| 0.09 | 1.6 | ≤0.030 | 21 | 11 | 0.17 | 0.05 |
253MA Mechanical Properties at Room Temperature
| Grade | Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness Rockwell B(HR B) max |
Hardness Brinell (HB) max |
| 253 MA UNS S30815 |
600 | 310 | 40 | 95 | 217 |
