Stainless Steel, 403
This grade is a Cr steel hardenable by heat treatment, which will attain high mechanical properties after heat treatment. It has good impact strength, corrosion and scaling resistance up to 1200 F (649 C). Applications are steam and gas turbine blades and buckets, bushings, valve components, fasteners, missile rocket components and medical instruments.
| Chemical Composition (Weight %) |
|||||||||||||||||
| C | Mn | Si | P | S | Cr | ||||||||||||
| Min | 11.5 | ||||||||||||||||
| Max | 0.15 | 0.50 | 1.00 | 0.04 | 0.03 | 13.5 | |||||||||||
| Typical Mechanical Properties (Min) | ||||||||||
| Condition | Tensile Strength, PSI | Yield Strength 0.2%, PSI | Elongation % | Reduction of Area % | Hardness HB | |||||
| A | 115,000 | 241 | ||||||||
| HT | 120,000 | 90,000 | 12 | 40 | 269 max | |||||
Related Specifications and Conditions
UNS S40300, AMS-QQ-S-763, ASTM A479, ASTM A276, ASTM A182, X7Cr13
Available Forms
Round bar, flat bar, hex bar, sheet, strip, plate, wire, coil, forgings
| Chemical Composition (Weight %) |
||||||||
| Min | Max | |||||||
| C | 0.15 | |||||||
| Mn | 0.50 | |||||||
| Si | 1.00 | |||||||
| P | 0.04 | |||||||
| S | 0.03 | |||||||
| Cr | 11.5 | 13.5 | ||||||
| Typical Mechanical Properties (Min) | |||||||
| Condition A | |||||||
| Tensile Strength, PSI | 115,000 | ||||||
| Yield Strength 0.2%, PSI | |||||||
| Elongation % | |||||||
| Reduction of Area % | |||||||
| Hardness HB | 241 | ||||||
| HT | |||||||
| Tensile Strength, PSI | 120,000 | ||||||
| Yield Strength 0.2%, PSI | 90,000 | ||||||
| Elongation % | 12 | ||||||
| Reduction of Area % | 40 | ||||||
| Hardness HB | 269 max | ||||||
Related Specifications and Conditions
UNS S40300, AMS-QQ-S-763, ASTM A479, ASTM A276, ASTM A182, X7Cr13
Available Forms
Round bar, flat bar, hex bar, sheet, strip, plate, wire, coil, forgings