Description
Stainless steel 304 round bar is composed of austenitic stainless steel with a composition of 18% chromium and 8% nickel. This is the most used grade of any stainless steel in the world. This round bar is strong, temperature and corrosion resistant and is used in a variety of industries. Stainless steel 304 round bar also has manganese, carbon, silicon, sulfur, nitrogen and phosphorus in its composition. The material is strong, typically having a minimum yield strength of 205 MPa and a minimum tensile strength of 515 MPa.
304 stainless steel round bar price in China, 304 stainless steel round bar manufacturer
Thinner round bars have higher strength values. The round bar specification is A240 for pressure vessels and high temperature applications.ASTM A240 SS 304 round bar can withstand temperatures of up to 870 degrees Celsius. For this reason, round bars are used in evaporators, heat exchangers and other high temperature applications. Stainless steel 304 round bars are also used in drums, barrels, dairy equipment, food processing and hospital equipment.
Equivalent Material of 304 Stainless Steel Round Bar
| Grade | UNS No. | Old British | Euronorm | China GB | Japanese JIS | ||
| BS | EN | No. | Name | ||||
| 304 | S30400 | 304S15 | 58E | 1.4301 | X5CrNi18-10 | 0Cr18Ni9 | SUS304 |
| 304L | S30403 | 304S12 | – | 1.4307 | X2CrNiN18-9 | 00Cr19Ni10 | SUS304L |
| 304H | S30409 | 304S51 | – | 1.4948 | X6CrNi18-11 | 07Cr19Ni10 | SUS304H |
Standard Specification Of 304 Stainless Steel Round Bar
| Specifications | ASTM A240 / ASME SA240 |
| Diameter | Cold Rolled Bright 3-25.4mm; Hot Rolled Black Bar 20-100mm |
| Length | 4-9meter / piece |
| Surface | CR: bright bar; HR: annealed |
| Finish | Hot rolled round bar (HR), Cold rolled round bar (CR) |
| Form | Round Bar |
| Diameter | Cold Rolled Bright 3-25.4mm; Hot Rolled Black Bar 20-100mm |
Composition Content Of 304 Stainless Steel Round Bar
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 304 | Min. Max. |
/ 0.08 |
/ 2.0 |
/ 0.75 |
/ 0.045 |
/ 0.030 |
18.00 20.00 |
/ | 8.00 10.50 |
/ 0.10 |
| 304L | Min. Max. |
/ 0.03 |
/ 2.0 |
/ 1.0 |
/ 0.045 |
/ 0.030 |
18.00 20.00 |
/ | 9.00 11.00 |
/ |
| 304H | Min. Max. |
0.04 0.10 |
/ 2.0 |
/ 0.75 |
0.045 / |
/ 0.030 |
18.00 20.00 |
/ | 8.00 10.50 |
/ |
| Grade | Tensile Strength (MPa) |
Yield Strength 0.2% Proof (MPa) |
Elongation (% in 50mm) |
Hardness | |
| Rockwell B (HR B) |
Brinell (HB) |
||||
| 304 | 515 | 205 | 40 | 92 | 201 |
| 304L | 515 | 205 | 40 | 90 | 187 |
| 304H | 515 | 205 | 40 | 92 | 201 |
