APPLIED ALLOYS’ product range is extensive and includes large-diameter and/or heavy wall stainless steel pipe, fittings, and flanges. We pride ourselves on sourcing those “hard to find” materials.
Manufactured to the highest quality standards, these products are designed to withstand high pressure, extreme temperatures, and demanding environments, ensuring long-lasting performance. Ideal for use in industries such as oil and gas, petrochemicals, power generation, and construction. Our stainless steel components offer superior resistance to corrosion, wear, and impact.
With a wide range of sizes and specifications available, we provide customized solutions to meet your exact requirements, ensuring efficient, cost-effective solutions for your projects.
Stainless Steel Products
APPLIED ALLOYS’ premier stockist of specialty grades of 300 Series Stainless Steel pipe ½” up to 24″. We also stock pipe fittings, flanges & valves to suit. These grades are specifically resistant to corrosion and suitable for high temperatures. Commonly used in Pipelines, Condensers, Heat Exchangers, High-Temperature Steam Services, Oil Refining, Power Generation, Gas and Chemical Industries, Pulp and Paper Plants, and Food Processing Plants. ASTM / ASME 312, 403, 182 and are also available in DIN and JIS.
304 304H Stainless Steel
304/304H are austenitic chromium-nickel alloys known to be among the most adaptable and widely applied stainless steels in the 300 series. 304H has a higher carbon content and is often dual-certified as 304. UNS S30400, S30409
- Seamless & Welded Pipe ½” – 24″ | 15Nb – 600NB | Schedule 10s, 40s, 80s, 1/120, 160s, XXH
- Butt Weld Fittings to suit in ASTM / ASME 403
- High Pressure Fittings ½” – 2″ and 3-4″ special builds, Class 3000 THRD/SW in ASTM / ASME 182
- Flanges Class 150, 300, 600 in ASTM / ASME 182 UNS S 30400 / S30409 JIS G3459 SUS304 TP
Grade 310 310H
310S/310H are austenitic stainless steels often used in high-temperature sulfur-bearing gas atmospheres, heat exchanger and recuperator tubing, and molten salt applications. 310S has a lower carbon content for easy fabrication and 310H has a higher carbon content for increased creep resistance. UNS S31008, S31009
- Seamless & Welded Pipe ½” – 24″ | 15Nb – 600NB | Schedule 10s, 40s, 80s, 1/120, 160s, XXH
- Butt Weld Fittings to suit in ASTM / ASME 403
- High Pressure Fittings ½” – 2″ and 3-4″ special builds, Class 3000 THRD/SW in ASTM / ASME 182
- Flanges Class 150, 300 in ASTM / ASME 182 UNS S3108 / S3109
ASTM Grade 316 316H
316/316H are molybdenum-bearing steels with higher resistance to corrosion. Increased corrosion resistance than 304/304H. 316H with a higher carbon content has greater tensile and yield strength. UNS S31600, S31609
- Seamless & Welded Pipe ½” – 24″ | 15Nb – 600NB | Schedule 10s, 40s, 80s, 1/120, 160s, XXH
- Butt Weld Fittings to suit in ASTM / ASME 403
- High Pressure Fittings ½” – 2″ and 3-4″ special builds, Class 3000 THRD/SW in ASTM / ASME 182
- Flanges Class 150, 300, 600 in ASTM / ASME 182 UNS S31600 / S31609 JIS SUS316 X5CrNiMo17-12-2
ASTM Grade 317L
317/317L are molybdenum-bearing steels that offer a higher stress-to-rupture, creep, and tensile strength at elevated temperatures. 317L has a lower carbon grade which provides resistance to sensitisation during welding. UNS S31700, S31703
- Seamless & Welded Pipe ½” – 24″ | 15Nb – 600NB | Schedule 10s, 40s, 160s
- Butt Weld Fittings to suit in ASTM / ASME 403
- High Pressure Fittings ½” – 2″ and 3-4″ special builds, Class 3000 THRD/SW in ASTM / ASME 182
- Flanges Class 150, 300, 600 in ASTM / ASME 182 UNS 31703
ASTM Grade 321 321H
321/321H are titanium-bearing steels not sensitive to intergranular corrosion after heating within the range of carbide precipitation 427–816°C. 321H has a higher carbon content for enhanced creep resistance and higher strength. UNS S32100, S32109
- Seamless & Welded Pipe ½” – 24″ | 15Nb – 600NB | Schedule 10s, 40s, 80s, 1/120, 160s, XXH
- Butt Weld Fittings to suit in ASTM / ASME 403
- Flanges Class 150, 300, 600 in ASTM / ASME 182 UNS S32100 / S32109
ASTM Grade 347 347H
347/347H are austenitic chromium steels containing columbium. Often used in refineries, high-temperature chemical processing, and high-temperature steam service. 347H has a higher carbon content for enhanced creep resistance and higher strength. UNS S34700, S34709
- Seamless & Welded Pipe ½” – 24″ | 15Nb – 600NB | Schedule 10s, 40s, 80s, 1/120, 160s, XXH
- Butt Weld Fittings to suit in ASTM / ASME 403
- Flanges Class 150, 300, 600 in ASTM / ASME 182 UNS 34700 / S34709
Overview
APPLIED ALLOYS APPLIED ALLOYS is Australia’s premier source of 253MA | UNS S30815 | EN 1.4835 Stainless Steel. 253MA is an austenitic, chromium-nickel stainless steel with heat resistance and high strength. 253MA stainless steel is alloyed with nitrogen and reactive elements suitable for a wide range of high-temperature applications. The use of rare earth metals in combination with silicon gives superior oxidation resistance up to 1150°C. We maintain an extensive, ready-to-ship stock of 253MA pipe and fittings to ensure your project timelines are met with minimal lead times.
You can explore our full range of 253MA stainless steel products here.
245 SMO
254 SMO is a high-alloy austenitic stainless steel. Offers excellent resistance to pitting, crevice, stress corrosion cracking. 254 SMO has greater strength than conventional austenitic stainless steels and has good weldability.
UNS S31254
410S
410S is a low carbon, non–hardening modification of 410. This helps prevent cracking when exposed to high temperatures or welding. 410S is completely ferritic in the annealed condition. This alloy remains soft and ductile even when rapidly cooling from high temperatures.
UNS S41008
904L
904L is a low carbon high alloy austenitic stainless steel designed for moderate to high corrosion resistance. 904L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to 316L and 317L stainless steels.
UNS N08904
253 MA Bar
- 6mm – 350mm diameter / 3/16″ – 15″
- Random, Fix & Cut Lengths
- Cold Drawn Polished, Centerless Ground & Peeled
- ASTM A276
Valves
- Plug Valves
- Gate Valves
- O-Port Through Conduit Valves
- Globe Valves | Custom made
Overview
APPLIED ALLOYS is Australia’s premier source for high-quality Duplex 2205, Super Duplex 2507, and Zeron® 100 materials. Super duplex grades offer an unrivalled combination of high tensile and yield strength , superior corrosion resistance, and excellent resistance to stress corrosion cracking compared to the 300 series. Our extensive stock is designed for demanding environments, featuring a wide array of pipes (½”–30” diameter), fittings, flanges (Class 150–2500), valves, plate (2mm–200mm thickness), and bar (12mm–300mm diameter). We pride ourselves on our ability to supply these advanced alloys—which, in the case of Zeron® 100, include copper and tungsten for enhanced performance in mineral acid applications—and provide customised, cost-effective solutions tailored to your project’s specific requirements.
Duplex and Super Duplex page.



