Description
303 stainless steel is an austenitic free-cutting stainless steel wear and acid resistant steel. To improve the performance of this steel, no more than 0.60% molybdenum is added to the steel. It has good resistance to ablative corrosion and good resistance to cutting and burning.
Corrosion resistance. 303 stainless steel mechanical properties after annealing and stress relief, tensile strength 515 MPa, yield 205 MPa and elongation 40%.
Standard hardness of 303 stainless steel HRB90-100, HRC20-25, Note: HRB100 = HRC20
Equivalent Material of 303 Stainless Steel Round Bar
| Grade |
Euronorm |
China GB |
Japanese JIS |
| No. |
| 303 |
1.4305 |
Y1Cr18Ni9 |
SUS303 |
Standard Specification Of 303 Stainless Steel Round Bar
| 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 |
Composition Content Of 303 Stainless Steel Round Bar
| Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
| 303 |
Min.
Max. |
≤0.15 |
≤2.0 |
≤1.00 |
≤0.20 |
≥0.15 |
17.00-19.00 |
/ |
8.00-10.00 |
|
- Mechanical properties:
- Tensile strength σb (MPa) : ≥520
- Conditional yield strength σ0.2 (MPa) : ≥205
- Elongation Δ5 (%) : ≥40
- Section shrinkage ψ(%) : ≥50
- Hardness: 187 hb or less;
- 90 HRB or less;
- 200 hv or less
