Machuca Fittings, located in Kuala Lumpur, Malaysia, has built a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 309H Pipe Fittings. Known for their precision engineering and strict quality control, they serve a variety of industries, including power generation, chemical processing, petrochemical, and industrial manufacturing. Their Stainless Steel 309H Pipe Fittings are crafted to endure high temperatures and harsh environments, ensuring seamless connections and long-lasting durability. With a strong commitment to excellence, Machuca Fittings delivers products that meet international standards, providing dependable and efficient piping solutions that boost operational safety, performance, and longevity in critical industrial settings.
| Size Range | (Seamless): 1/2″ NB – 24″ NB(ERW): 1/2″ NB – 24″ NB(EFW): 6″ NB – 100″ NB |
| Wall thikness | Schedule 5S – Schedule XXS (heavier on request) |
| Form | Seamless / ERW / Welded In Round & Square |
| Grade | ASTM A312 Grade Tp309H |
The composition of Stainless Steel 309H Pipe Fittings includes iron, 23–25% chromium, and 12–15% nickel, along with small amounts of carbon, manganese, and silicon. This high-chromium, high-nickel austenitic alloy is known for its outstanding resistance to oxidation and scaling at elevated temperatures. It boasts impressive tensile strength, typically ranging from 515 to 620 MPa, a yield strength of about 205 MPa, and an elongation of up to 40%. Its remarkable heat and corrosion resistance, paired with good impact toughness, makes it perfect for high-temperature and chemically aggressive environments, ensuring durability and reliability in demanding piping systems.
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Fe |
Ni |
|
|
309H |
0.04-0.10 |
2 |
0.75 |
0.045 |
0.03 |
22-24 |
58-63 |
12-15 |
|
Grade | Tensile Str (MPa) min | Yield Str 0.2% Proof (MPa) min | Elong (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
309H
| 515 | 205 | 40 | 95 | 217 |
Machuca Fittings one of the largest suppliers of Stainless Steel 309H Pipe Fittings in Kuala lumpur, Malaysia. We specialize in providing a wide range of high-quality, durable fittings for various industrial applications. Our inventory includes elbows, tees, reducers, couplings, and other essential fittings designed to offer exceptional corrosion resistance and strength. Stainless Steel 309H is known for its cost-effectiveness and excellent mechanical properties, making it ideal for industries such as construction, chemical processing, and food processing. With a commitment to customer satisfaction, timely delivery, and competitive pricing, we are the trusted choice for Stainless Steel 309H Pipe Fittings in the Malaysia.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Stainless Steel 309H Pipe Fittings from Machuca Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
| STANDARD | WERKSTOFF NR. | UNS |
| SS 309H | 1.4833 | S30909 |
Stainless Steel 309H Pipe Fittings offer enhanced strength and stability due to their higher carbon content, making them ideal for high-temperature applications. They provide excellent resistance to oxidation and corrosion, ensuring long-term durability in harsh environments. These fittings perform well under thermal cycling conditions and maintain structural integrity in temperatures exceeding 1000°C. Their superior creep resistance ensures reliability in pressure and stress-bearing applications. Easy to fabricate and weld, Stainless Steel 309H Pipe Fittings are suitable for industries like petrochemical, power generation, and chemical processing, delivering exceptional performance and longevity.
| Nominal PipeSize | Outside Diameter | 90° Elbows | 45° Elbows | 180° Returns | ||||
|---|---|---|---|---|---|---|---|---|
| (inches) | – | Long Radius | Short Radius | Long Radius | Long Radius | |||
| (mm) | (inches) | Center to Face (inches) | Center to Face (inches) | Center to Face (inches) | Radius (inches) | Center to Center (inches) | Back to face (inches) | |
| 1/2 | 21.3 | 0.840 | 1 1/2 | – | 5/8 | 2 | 1 7/8 | |
| 3/4 | 26.7 | 1.050 | 1 1/8 | 7/16 | 2 1/4 | 1 11/16 | ||
| 1 | 33.4 | 1.315 | 1 1/2 | 1 | 7/8 | 3 | 2 3/16 | |
| 1 1/4 | 42.2 | 1.660 | 1 7/8 | 1 1/4 | 1 | 3 3/4 | 2 3/4 | |
| 1 1/2 | 48.3 | 1.900 | 2 1/4 | 1 1/2 | 1 1/8 | 3 | 4 1/2 | 3 1/4 |
| 2 | 60.3 | 2.375 | 3 | 2 | 1 3/8 | 4 | 6 | 4 3/16 |
| 2 1/2 | 73.0 | 2.875 | 3 3/4 | 2 1/2 | 1 3/4 | 5 | 7 1/2 | 5 3/16 |
| 3 | 88.9 | 3.500 | 4 1/2 | 3 | 2 | 6 | 9 | 6 1/4 |
| 3 1/2 | 101.6 | 4.000 | 5 1/4 | 3 1/2 | 2 1/4 | 7 | 10 1/2 | 7 1/4 |
| 4 | 114.3 | 4.500 | 6 | 4 | 2 1/2 | 8 | 12 | 8 1/4 |
| 5 | 141.3 | 5.563 | 7 1/2 | 5 | 3 1/8 | 10 | 15 | 10 5/16 |
| 6 | 168.3 | 6.625 | 9 | 6 | 3 3/4 | 12 | 18 | 12 5/16 |
| 8 | 219.1 | 8.625 | 12 | 8 | 5 | 12 | 24 | 16 5/16 |
| 10 | 273.1 | 10.750 | 15 | 10 | 6 1/4 | 15 | 30 | 20 3/8 |
| 12 | 323.9 | 12.750 | 18 | 12 | 7 1/2 | 18 | 36 | 24 3/8 |
Yes, custom sizes are available for Stainless Steel 309H Pipe Fittings to meet specific requirements. We offer tailored solutions to ensure precise fit and performance for various applications. For more information, please contact us at sales@machucafittings.com.
| NPS (inch) | Pipe Sch. | Wall Thk. (in) | OD (inch) | Temperature | ||||
|---|---|---|---|---|---|---|---|---|
| 100 | 200 | 300 | 400 | 500 | ||||
| Allowable Stress (Pressure Rating) | ||||||||
| 16700 | 16700 | 16700 | 15500 | 14400 | ||||
| 1″ | 40 | 0.133 | 1.315 | 2205 | 2205 | 2205 | 2047 | 1902 |
| 80 | 0.179 | 1.315 | 3061 | 3061 | 3061 | 2841 | 2640 | |
| 160 | 0.250 | 1.315 | 4493 | 4493 | 4493 | 4170 | 3874 | |
| 1 1/2″ | 40 | 0.145 | 1.900 | 1629 | 1629 | 1629 | 1512 | 1404 |
| 80 | 0.200 | 1.900 | 2303 | 2303 | 2303 | 2138 | 1986 | |
| 160 | 0.281 | 1.900 | 3362 | 3362 | 3362 | 3120 | 2899 | |
| 2″ | 40 | 0.154 | 2.375 | 1371 | 1371 | 1371 | 1272 | 1182 |
| 80 | 0.218 | 2.375 | 1985 | 1985 | 1985 | 1843 | 1712 | |
| 160 | 0.344 | 2.375 | 3283 | 3283 | 3283 | 3047 | 2831 | |
| 3″ | 40 | 0.216 | 3.500 | 1301 | 1301 | 1301 | 1208 | 1122 |
| 80 | 0.300 | 3.500 | 1844 | 1844 | 1844 | 1712 | 1590 | |
| 160 | 0.438 | 3.500 | 2787 | 2787 | 2787 | 2587 | 2403 | |
| 4″ | 40 | 0.237 | 4.500 | 1102 | 1102 | 1102 | 1023 | 950 |
| 80 | 0.337 | 4.500 | 1596 | 1596 | 1596 | 1482 | 1377 | |
| 160 | 0.531 | 4.500 | 2611 | 2611 | 2611 | 2424 | 2552 | |
| 5″ | 40 | 0.258 | 5.563 | 965 | 965 | 965 | 896 | 832 |
| 80 | 0.375 | 5.563 | 1428 | 1428 | 1428 | 1325 | 1231 | |
| 160 | 0.625 | 5.563 | 2474 | 2474 | 2474 | 2296 | 2133 | |
| 6″ | 40 | 0.280 | 6.625 | 877 | 877 | 877 | 814 | 756 |
| 80 | 0.432 | 6.625 | 1379 | 1379 | 1379 | 1280 | 1189 | |
| 160 | 0.719 | 6.625 | 2382 | 2382 | 2382 | 2211 | 2054 | |
| 8″ | 40 | 0.322 | 8.625 | 771 | 771 | 771 | 716 | 665 |
| 80 | 0.500 | 8.625 | 1218 | 1218 | 1218 | 1131 | 1050 | |
| 160 | 0.906 | 8.625 | 2298 | 2298 | 2298 | 2133 | 1982 | |
| 10″ | 40 | 0.365 | 10.750 | 699 | 699 | 699 | 649 | 603 |
| 80 | 0.594 | 10.750 | 1159 | 1159 | 1159 | 1075 | 999 | |
| 160 | 1.125 | 10.750 | 2289 | 2289 | 2289 | 2124 | 1974 | |
Stainless Steel 309H Pipe Fittings find extensive use in industries that require both high-temperature resistance and corrosion durability. They are commonly applied in power plants, petrochemical processing, chemical manufacturing, and food processing sectors. These fittings are particularly suited for pipelines that transport hot gases, steam, and corrosive fluids. Additionally, they are utilized in furnace construction, heat exchangers, and boiler systems due to their ability to handle thermal cycling and oxidation. Thanks to their seamless design, mechanical strength, and resistance to corrosion and scaling, Stainless Steel 309H Pipe Fittings are a go-to choice for many demanding applications.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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