The 304H is composed of 18% chromium and 8% nickel, in combination with manganese, carbon, silicon, sulfur, and phosphorus. This composition endows the material with very excellent mechanical properties; the minimum tensile strength is 515 MPa, and the minimum yield strength is 205 MPa. In addition, it has good general resistance to corrosion. The UNS S30409 Hex Bar finds applications in high-strength fields like construction and building metallic frames and high-heat applications such as heat exchangers, boiler frames, and fasteners.
The DIN 1.4301 Flat Bar forms metallic lattices that can withstand high loads. Due to the versatility of the material, there are several different applications that can be applied by requirements and specifications as per customer needs. If you want detailed information on prices and other types of ASTM A479 SS 304H Square Bar, kindly mail or call Sankalp Alloys Overseas.
Alloy 304H shows good resistance to atmospheric corrosion, food and beverage exposure, and many organic and inorganic chemicals in moderately oxidizing to moderately reducing environments. The high chromium content offers resistance to oxidizing solutions, for example, nitric acid, up to 55 percent weight and up to 176°F. Moreover, Alloy 304/304H resists moderately aggressive organic acids like acetic acid. Nickel content improves resistance to moderately reducing solutions, including pure phosphoric acid in cold solutions and up to 10% in diluted hot solutions. The alloy also resists very well in caustic solutions free of chlorides or fluorides at moderate temperatures.
304H Stainless Steel Round Bar Equivalent Grades
STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
---|---|---|---|---|---|---|---|
SS 304H | S30403 | 1.4306/1.4307 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304H | 304S11 | 03Х18Н11 |
Chemical Alloyion of Stainless Steel 304H Round Bar
C | Mn | Si | P | S | Cr | Ni | N | |
---|---|---|---|---|---|---|---|---|
304H | 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 |
Mechanical Properties Of Stainless Steel 304H Round Bar
Grade | Tensile Strength ksi (min) | Yield Strength 0.2% ksi (min) | Elongation % | Hardness (Brinell) MAX | Hardness (Rockwell B) MAX |
---|---|---|---|---|---|
304H | 70 | 25 | 40 | 201 | 92 |
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