It contains additional alloying elements, which makes it a machining-free grade of 304 stainless steel. Increased machinability of the material due to sulphur or selenium additions In addition to nickel and chrome, it can contain up to 20% chrome and 8 % chrome.
SPECIFICATION
| Dimensions | : | ASTM, ASME |
| Standard | : | ASTM / ASME SA A582, A276, A564, ASTM A484M |
| Surface | : | hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline |
| Range | : | Range – 3.17mm to 350mm dia |
EQUIVALENT GRADES
| STANDARD | WERKSTOFF NR. | UNS | JIS |
| SS 303 | 1.4305 | S30300 | SUS 303 |
CHEMICAL COMPOSITION
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 303 | .15 max | 17- 19 | 2.0 max | 8.0 -10.0 | 0.20 max | .15 min | 1.00 max |
MECHANICAL PROPERTIES
| Element | Tensile Strength | Yield Strength | Elongation | Reduction in Area | Hardness |
| SS 303 | Psi – 85,000 | Psi – 45,000 | 50% | 55% | Rb 180 |
PHYSICAL PROPERTIES
| Element | Density, lb/in3 | Modulus of Elasticity, psi | Linear Expansion, 68-212°F, /°F | Thermal Conductivity, Btu/ft hr°F | Heat Capacity, Btu/lb°F | Electrical Resistivity, Ω-inch |
| SS 303 | 0.285 | 29 x 106 | 9.4 x 10-6 | 8.7 | 0.12 | 27.6 x 10-6 |
APPLICATION
MARINE INDUSTRY
CHEMICAL INDUSTRY
OFFSHORE & ONSHORE
DEFENSE APPLICATIONS
POWER & ENERGY
