Stainless steel 904L bars are produced from a super austenitic composition containing 19–23% chromium, 23–28% nickel, 4–5% molybdenum, and 1–2% copper with minimal carbon content. This alloy has superior resistance to pitting, crevice corrosion, and stress corrosion cracking in acidic and chloride environments. These bars exhibit a tensile strength of 490–710 MPa and a yield strength of approximately 220 MPa. Superior weldability, toughness, and formability have made 904L bars popular in highly corrosive industrial processes under conditions of high pressure and temperature.
| Standards | ASTM / ASME |
| Designation | B 649, SB 649 |
| Grade | 904L Round Bars and Rods 904L Round Bars and Rods: ASTM B 649, ASME SB 649 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
|---|---|---|---|---|---|---|---|---|---|
| SS 904L | 0.020 max | 2 max | 1 max | 0.040 max | 0.030 max | 19.0-23.0 | 4.0-5.0 max | 23.00 – 28.00 | 1.0-2.0 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 7.95 g/cm3 | 1350 °C (2460 °F) | Psi – 71000 , MPa – 490 | Psi – 32000 , MPa – 220 | 35% |
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At Chanchai Stainless, we are proud to be the largest supplier, manufacturer, and exporter of Stainless Steel 904L bars in Bangkok, Thailand. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the Thailand, we maintain a vast inventory of over 16,000 tons of premium-quality materials, ensuring we have the stock readily available to meet your demands.
904L round bars offer high resistance to corrosion and oxidation, ideal for harsh environments in chemical processing, marine, and pharmaceutical industries, providing durability and strength.
904L flat bars provide exceptional resistance to pitting and crevice corrosion, suitable for use in aggressive environments like chemical processing and marine applications, ensuring robust performance and longevity.
904L square bars deliver superior corrosion resistance and strength, perfect for structural applications in corrosive environments, such as chemical plants and marine environments, offering durability and reliability.
904L rectangular bars are designed for high corrosion resistance and strength, used in chemical processing, marine, and industrial applications, where durability and performance under harsh conditions are required.
904L hexagonal bars provide excellent corrosion resistance and are used in structural and mechanical applications, particularly in aggressive environments such as chemical processing and marine settings.
904L T-bars offer superior resistance to corrosion and high strength, ideal for structural support in corrosive environments like chemical plants and marine applications, ensuring long-lasting performance and reliability.
Chanchai Stainless is a leading supplier, and stockist of high-quality stainless steel 904L bars in Bangkok, Thailand. Our products are widely used in various applications, and we are committed to delivering excellent service, resulting in high customer satisfaction. Our unique finishing techniques further distinguish us in the stainless steel industry. We are dedicated to consistently providing superior products and effectively meeting our customer’s needs.
904L stainless steel bars are predominantly applied in applications that demand high strength as well as superior corrosion resistance. In chemical and petrochemical industries, they are applied to processing equipment, reactors, and acid-handling equipment. Under marine and offshore conditions, they are applied for structural and support purposes exposed to saltwater and chlorides. Pharmaceutical and food industries apply 904L bars for sanitary equipment as well as corrosion-resistant equipment. They are also employed in paper mills, power plants, pollution systems, and heat exchangers. They have a long life and low maintenance requirements and are best suited for severe and corrosive applications.
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