Machuca Fittings, located in Kuala Lumpur, Malaysia, has made a name for itself as a top-notch manufacturer and supplier of high-quality Stainless Steel 304H Buttweld Fittings. Renowned for their precision, quality, and dependability, Machuca Fittings serves a diverse array of industries, including petrochemical, power generation, chemical processing, and food and beverage. Their Stainless Steel 304H Buttweld Fittings are expertly designed to deliver outstanding performance at high temperatures, resist corrosion, and ensure seamless connections. By following international standards and maintaining rigorous quality control, Machuca Fittings provides durable and efficient piping solutions that guarantee operational safety, long-lasting reliability, and improved performance in even the most demanding industrial and commercial settings.
Specifications : ASTM A403 / ASME SA403
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799
Size : Seamless Butt Weld Fittings : 1/2″ – 10″ | Welded Butt Weld Fittings : 1/2″ – 48″
Schedule : SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75
Bending Radius : R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom
Type : Seamless / ERW / Welded / Fabricated
Thickness :20 Swg., 18 Swg., 16 Swg., 14 Swg., 12 Swg., 10 Swg., & Sch. 10, Sch. 40, Sch. 80 etc.
These Stainless Steel 304H Buttweld Fittings are primarily made up of iron, with 18–20% chromium and 8–10.5% nickel, featuring a higher carbon content than 304L to enhance strength at elevated temperatures. This austenitic stainless steel is known for its excellent corrosion resistance in oxidizing environments and remarkable mechanical strength under high-temperature conditions. Typically, it boasts a tensile strength ranging from 515 to 620 MPa, a yield strength of about 205 MPa, and an elongation of up to 40%. Its unique blend of heat resistance, toughness, and weldability makes it perfect for challenging piping systems and high-temperature industrial applications.
| C | Mn | Si | P | S | Cr | Ni | N | |
|---|---|---|---|---|---|---|---|---|
| 304 | 0.07max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 10.5 | — |
| 304L | 0.03max | 2.0max | 0.75max | 0.045max | 0.03max | min: 18.0 max: 20.0 | min: 8.0 max: 12.0 | 0.10 max |
| 304H | min: 18.0 max:20.0 | min: 8.0 max: 10.5 | min: 0.04 max:0.10 | 0.75 max | 2.0 max | 0.045 max | 0.03 max | 0.10 max |
| Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
|---|---|---|---|---|---|
| 304 | 75 | 30 | 40 | 201 | 92 |
| 304L | 70 | 25 | 40 | 201 | 92 |
| 304H | 75 | 30 | 40 | 201 | 92 |
Machuca Fittings is a leading supplier of Stainless Steel 304H Buttweld Fittings in Kuala lumpur, Malaysia. We offer an extensive range of Stainless Steel 304H Buttweld Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
|---|---|---|---|---|---|---|---|
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| SS 304L | S30403 | 1.4306/1.4307 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304L | 304S11 | 03Х18Н11 |
| SS 304H | S30409 | 1.4301 | – | – | – | – | – |
Stainless Steel 304H Buttweld 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.
Stainless steel 304H Buttweld Fittings offer excellent mechanical properties, high thermal strength and corrosion resistance, making them ideal for critical operating conditions They maintain structural integrity at high temperatures, ensuring long life and performance in heat exchanger, power plant and chemical processing applications Their high carbon content resists creep increases, thereby reducing the risk of deformation over time. These components are easily welded, providing a secure, watertight connection. Additionally, 304H’s versatility and scaling resistance make it suitable for a wide range of applications, from petrochemical to food processing.
| SS 304/304L | ||||||
|---|---|---|---|---|---|---|
| Density lbm/in3 | Thermal Conductivity (BTU/h ft. °F) | Electrical Resistivity (in x 10-6) | Modulus of Elasticity (psi x 106 | Coefficient of Thermal Expansion (in/in)/ °F x 10-6 | Specific Heat (BTU/lb/ °F) | Melting Range (°F) |
| at 68°F: 0.285 | 9.4 at 212°F | 28.3 at 68°F | 28 | 9.4 at 32 – 212°F | 0.1200 at 68°F to 212°F | 2500 to 2590 |
| 12.4 at 932 °F | 39.4 at 752°F | 10.2 at 32 – 1000°F | ||||
| 49.6 at 1652 °F | 10.4 at 32 – 1500°F | |||||
| SS 304H | ||||||
| Denstiy lbm/in3 | Coefficient of Thermal Expansion (min/in)-°F | Thermal Conductivity BTU/hr-ft-°F | Specific Heat BTU/lbm -°F | Modules of Elasticity (annealed)2-psi | ||
| at 68 °F | at 68 – 212°F | at 68 – 1600°F | at 212°F | at 932°F | at 32 – 212°F | in tension (E) |
| 0.285 | 9.2 | 11.0 | 9.4 | 12.4 | 0.12 | 29 x 106 |
Yes, custom sizes for Stainless Steel 304H Buttweld Fittings are available at Machuca Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@machucafittings.com.
Stainless Steel 304H Buttweld Fittings find extensive use in industries that demand high-temperature resistance and durability. They’re commonly utilized in power plants, chemical and petrochemical processing, oil and gas, and food processing facilities. These fittings are ideal for pipelines that transport hot fluids, steam, and corrosive media under high temperature and pressure. Moreover, they are essential in boilers, heat exchangers, and furnace systems where thermal stability and corrosion resistance are crucial. With their seamless construction, impressive mechanical strength, and reliable performance, Stainless Steel 304H Buttweld Fittings truly stand out in the industry.
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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