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Gayatri tubes is a leading manufacturer, supplier, wholesaler, and exporter of all types of pipe fitting in all shapes and sizes. We manufacture Stainless Steels 304 / 304L / 304H Pipe Fittings in a different dimension, diameters, lengths, thicknesses, as per the customer’s requirement. We used all standards and specifications during manufacture products. Stainless steel 304 is austenitic stainless steel which has 18% chromium and 8% nickel alloy. In the annealed condition it behaves like a nonmagnetic alloy but this grade becomes magnetic by doing the cold working process. The grade 304L is a modified form of grade 304 and it is a low carbon alloy. Because of this low carbon, the grade 304l has corrosion resistance at the maximum temperature of 899-degree c. The stainless steel 304H grade is basically a nickel-chromium alloy with high carbon content. The higher amount of carbon increases its yields and tensile strength. The stainless steel 304/304l/304h grade has many characteristics such as- good weldability and forming property, corrosion and oxidation resistance, excellent toughness, fabrication, high strength, etc.
Stainless steel 304 is austenitic stainless steel which has 18% chromium and 8% nickel alloy. In the annealed condition it behaves like a nonmagnetic alloy but this grade becomes magnetic by doing the cold working process. The grade 304L is a modified form of grade 304 and it is a low carbon alloy. Because of this low carbon, the grade 304l has corrosion resistance at the maximum temperature of 899-degree c. The stainless steel 304H grade is basically a nickel-chromium alloy with high carbon content. The higher amount of carbon increases its yields and tensile strength. The stainless steel 304/304l/304h grade has many characteristics such as- good weldability and forming property, corrosion and oxidation resistance, excellent toughness, fabrication, high strength, etc.
The Stainless Steel 304 / 304L / 304H Butt weld Fittings is used in many industries like chemical industry, marine industry, offshore and drilling industry, pulp, and paper industry, petrochemical industry, etc. The grade 304/304L/304H stainless steel pipe filling has many applications such as- used in boiler equipment, chemical equipment, seawater equipment, heat exchanger, power generation plant, and so on. For checking the quality of SS 304 / 304 L / 304 H Pipe Fittings, we conduct different types of tests such as- micro test, macro test, destructive test, intergranular test, mechanical test, chemical test, and many other tests.
| STANDARD | UNS | WERKSTOFF NR. | 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 | 3304S11 | 03Х18Н11 |
| SS 304H | S30409 | 1.4948 | - | - | - | - | - |
| Specifications | ASTM A403 / ASME SA403 |
| Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43 |
| Size | 1/8” NB TO 48” NB. (Seamless & 100% X-Ray Welded, Fabricated) |
| Type | Seamless / Welded / Fabricated |
| Thickness | Sch 5s, Sch 10s, Sch 40s, Sch 80s, Sch 160s, Sch XXS |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304 | 0.08 max | 2.0 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | - | 8 – 11 | - | SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | - | 8 – 13 | - | SS 304H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | - | 8 – 10.5 | - |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
