Audited Supplier
Introduction
LORK is a special stainless steel manufacturer with 20 years of manufacturing experience.
303 (UNS30300) is a non-magnetic, austenitic stainless steel that is not hardenable by heat treatment. It is the free machining modification of the basic 18% chromium / 8% nickel stainless steel. 303 was specially designed to exhibit improved machinability while maintaining good mechanical and corrosion resistant properties Due to the presence of sulfur in the steel composition, 303 is the most readily machineable austenitic stainless steel; however, the sulfur addition does lower 303's corrosion resistance to below that of 304. Like other austenitic grades, 303 demonstrates excellent toughness, although the sulfur does reduce this a little as well.
The alloy is nonmagnetic in the annealed condition , but may become slightly magnetic as a result of cold working. The addition of sulfur negatively impacts the corrosion resistance of 303 making it less resistant than 304 to mildly corrosive environments.
Stainless Steel 303 Applications
303 is frequently used in applications that require parts to be heavily machined. Some examples include:
▪ Nuts and bolts
▪ Aircraft fittings
▪ Gears
▪ Screws
▪ Shafts
▪ Electrical switchgear components
▪ Bushings
303 Stainless Steel Standards
▪ EURONORM: X 12 CrNi 17 7
▪ DIN: 1.4310
| Cr | 17.0-19.0 | S | 0.15-0.35 |
| N | 8.0-1.0 | Si | 1.0 max |
| C | 0.1 max | Cu | 1.0 max |
| Mn | 2.0 max | Ni | 0.11 max |
| P | 0.2 max | Fe | Balance |
| Yield Strength | Ultimate Tensile Strength | Elongation | Hardness | ||
| Psi(min) | MPa | Psi(min) | MPa | % (min) | (max) |
| 45,000 | 310 | 85,000 | 586 | 50 | 202 (HBN) |
Stainless Steel 303 Mechanical Properties
Grade | 303 |
Tensile Strength (MPa) | 500-750 MPa |
Proof Stress (MPa) | 190 Min MPa |
Elongation A5 mm | 35 Min % |
Hardness Brinell | 230 Max HB |
Stainless Steel 303 Physical Properties
Property | Value |
Density | 8.03 kg/m3 |
Melting Point | 1455°C |
Modulus of Elasticity | 193 GPa |
Electrical Resistivity | 0.72 x 10-6 Ω.m |
Thermal Conductivity | 16.3 W/m.K |
Thermal Expansion | 17.3 x 10-6/K |
Available Sizes And Specification
| 304 stainless steel plate sizes and specifications | |
| Grade | 304 |
| Cold rolled stainless steel plate | Thickness: 0.3mm- 16.0mm, Width: 1000mm - 2000mm,Length: as requirements, Surface: 2B/BA/SB/8K/HL/1D/2D etc |
| Hot rolled stainless steel sheet | Thickness: 3.0mm - 300mm, Width: 1000mm - 3000mmLength: as requirements, Surface: No.1/pickling |
| Standard | ASTM A240/A480, ASTM B688, ASTM B463/SB463, ASTM B168/SB168, ASTM B443/SB443/B424/SB424B625/SB625 B575/SB575, JIS G4303,BS 1449, DN17441, G4305 |
| Stainless steel plate | Thickness: 8.0mm - 300mm, Width: 1000mm - 3000mmLength: as requirements, Surface: No.1/pickling |
Q1: Do you accept the trial order ?
A1: Yes,if we have the exactly size in stock.we can delivery even 1 piece/meter .
Q2: Can I have free sample before making orders?
