Stainless Steel Alloy 303 (UNS S30300) is an austenitic stainless steel designed for applications that require extensive machining necessities and demonstrates mild resistance in corrosive environments.
Stainless Steel Alloy 303: forms, specifications and uses
Stainless Steel Alloy 303 is supplied to specifications including AMS 5640, AMS 5641, ASTM A484, ASTM A582 and ASTM F899.
Typical uses of Stainless Steel Alloy 303 include aircraft applications, fasteners and screws.
For Stainless Steel Alloy 303, request a quote online or contact your nearest Titanium Industries location. Alloy data on this page is for reference only, not for design.
Stainless Steel Alloy 303 | UNS# S30300 is an austenitic stainless steel designed for applications that require extensive machining necessities and demonstrates mild resistance in corrosive environments. Being the most readily available machinable chromium-nickel stainless steel grades, is non-magnetic in the annealed condition, and can only be hardened through cold working. Typically used in screw machine applications, fasteners, and fittings for aircraft.
Stainless Steel Alloy 303 Specifications:
Stainless Steel Alloy 303 products offered at all Titanium Industries' locations:
Stainless Steel Alloy 303 Applications:
- Aircraft Applications
- Fasteners
- Screws
DISCLAIMER: Alloy data sheets are for reference only, not for design purposes.
| Chemical Composition | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| C <=0.15% | Cr 18% | Fe 69% | Mn <=2.0% | Mo 0.60% | |||||
| Ni 9.0% | P <=0.20% | Si <=1.0% | S >= 0.15% | ||||||
| PHYSICAL PROPERTIES | ||||||
|---|---|---|---|---|---|---|
| Density | Electrical conductivity (% IACS) | Thermal conductivity (BTU-in/hr-ft²-°F) | Specific heat capacity | Thermal expansion (1/°F) | Melting Point (°F) | |
| 0.289 | 2.4 | 112 | 0.12 | 0.00000930 | 2550 | |
| Mechanical Properties | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Property | Minimum | Maximum | |||||||
| Yield Strength Range (Rp0.2 Offset) (ksi) | 34.8 | 60.2 | |||||||
| Tensile Strength Range (Rm) (ksi) | 72.5 | 108.8 | |||||||
| Elongation (AL=5 x Ø) | 35.0% | 40.0% | |||||||
| Brinell Hardness (H) | 187 | 262 | |||||||
| Modulus of Elasticity (ksi) (E): 28000 | |||||||||
| Machineability General Index: 75% | |||||||||
Stainless Steel Alloy 303: questions and answers
What is Stainless Steel Alloy 303?
What is Stainless Steel Alloy 303?
Stainless Steel Alloy 303 (UNS S30300) is an austenitic stainless steel designed for applications that require extensive machining necessities and demonstrates mild resistance in corrosive environments.
Which specifications does Stainless Steel Alloy 303 meet?
Which specifications does Stainless Steel Alloy 303 meet?
AMS 5640, AMS 5641, ASTM A484, ASTM A582 and ASTM F899.
What is Stainless Steel Alloy 303 used for?
What is Stainless Steel Alloy 303 used for?
Aircraft applications, fasteners and screws.