301 (A, 1/4H, 1/2H, 3/4H, FH)
W.Nr 1.4310X10CrNi18-8
Request a quote for 301 (A, 1/4H, 1/2H, 3/4H, FH)301 is an austenitic stainless with reduced chromium and nickel relative to 304, which makes it transform and work harden rapidly during cold rolling. The result is a family of tempers running from annealed through quarter, half, three quarter and full hard, each with a defined strength and formability pairing.
Designers use 301 when they want high strength in sheet or strip without a hardening cycle: brackets, clips, springs, shims and formed structural panels.
We stock 301 in annealed and all four cold rolled tempers, in sheet and coil, with shearing and blanking to size.
Sizes and stock
- Sheet: from .012" THK
- Coil: from .001" THK
Processing capabilities
- Shearing, waterjet, laser and saw cut blanks
- Centerless grinding, turning and polishing
- Penetrant dye and ultrasonic inspection, chemical assay and physical testing
Specify temper: annealed, 1/4H, 1/2H, 3/4H or full hard.
Specifications
Material is released to the applicable specification with mill test reports and, on request, independent lab verification.
Why engineers specify 301 (A, 1/4H, 1/2H, 3/4H, FH)
- Strength selectable by cold rolled temper
- High strength to weight in thin sheet
- Good corrosion resistance for a structural sheet material
- Available annealed through full hard
Nominal chemistry
Percent by weight, nominal composition per the governing specification. The mill test report for your heat is the controlling document.
Typical mechanical properties
| Condition | Tensile strength | Yield strength | Elongation | Hardness |
|---|---|---|---|---|
| Annealed | 75 ksi min | 30 ksi min | 40% min | - |
| 1/4 hard | 125 ksi min | 75 ksi min | 25% min | - |
| 1/2 hard | 150 ksi min | 110 ksi min | 18% min | - |
| 3/4 hard | 175 ksi min | 135 ksi min | 12% min | - |
| Full hard | 185 ksi min | 140 ksi min | 8% min | - |
Typical published values for reference only, not for design. Properties vary with section size, product form and processing. Order to the specification and condition your drawing requires.
Typical applications
- Structural brackets and clips
- Springs, shims and washers
- Rail and transit panels
- Formed sheet hardware
Fabrication notes
Machining
Austenitic grades work harden quickly, so use positive rake tooling, rigid setups, generous feed and flood coolant rather than light dwelling cuts. Martensitic and precipitation hardening grades machine most easily in the annealed or solution treated condition and are aged after rough machining.
Welding
Weldable by GTAW, GMAW, resistance and electron beam methods with matching or over alloyed filler. Stabilized and low carbon grades resist sensitization in the weld zone. Precipitation hardening grades are normally welded in the solution treated condition and aged afterward.
Forming
Sheet and strip form well in the annealed condition; cold worked tempers trade formability for strength. Allow for springback and, where specified, an intermediate anneal between draws.
301 (A, 1/4H, 1/2H, 3/4H, FH) compared with similar grades
17-7 PH
Formed soft and hardened afterward, higher strength after forming.
304
More corrosion resistant and formable, lower cold worked strength.
Designations and cross reference
- Material family
- Stainless Steel
- Werkstoff (W.Nr)
- 1.4310
- EN designation
- X10CrNi18-8
- Series
- 300 Series
Working from an obsolete, foreign or superseded designation? Send it over and we will cross reference it to a current grade and specification.
Quality, testing and traceability
Supplied with mill test reports and heat traceability, with penetrant dye, ultrasonic, chemical assay, hardness, corrosion and mechanical testing available on request.
We are AS9100D and ISO 9001:2015 registered. If our stock does not already carry the inspection your specification requires, we can quote the material with that work performed. More on our quality system
Available forms
Custom sizes converted from billet, plus saw cut, waterjet and near-net blanks. See custom conversions
301 (A, 1/4H, 1/2H, 3/4H, FH) frequently asked questions
What is 301 (A, 1/4H, 1/2H, 3/4H, FH)?
301 is an austenitic stainless with reduced chromium and nickel relative to 304, which makes it transform and work harden rapidly during cold rolling. The result is a family of tempers running from annealed through quarter, half, three quarter and full hard, each with a defined strength and formability pairing.
What forms is 301 (A, 1/4H, 1/2H, 3/4H, FH) available in?
We supply 301 (A, 1/4H, 1/2H, 3/4H, FH) in sheet, coil. Custom sizes are converted from billet, and we can provide saw cut, waterjet or near net blanks so material arrives closer to your finished part.
What is the UNS or equivalent designation for 301 (A, 1/4H, 1/2H, 3/4H, FH)?
301 (A, 1/4H, 1/2H, 3/4H, FH) is designated Werkstoff 1.4310, EN X10CrNi18-8. If your drawing calls out an obsolete or foreign designation we can cross reference it and confirm the equivalent before you order.
What specifications can 301 (A, 1/4H, 1/2H, 3/4H, FH) be supplied to?
Commonly ordered specifications include AMS 5515, AMS 5517, AMS 5518, AMS 5519, MIL-S-5059. Material is released to the specification and condition on your purchase order, with mill test reports supplied as standard.
What conditions can 301 (A, 1/4H, 1/2H, 3/4H, FH) be ordered in?
We can supply Annealed, 1/4 hard, 1/2 hard, 3/4 hard, Full hard. If our stock is not already in the condition you need, we can quote it with the heat treatment performed before shipment.
Can you cut 301 (A, 1/4H, 1/2H, 3/4H, FH) to size?
Yes. Saw cutting, waterjet, laser and shearing are available, along with trepanning, gun drilling, lathe turning and CNC machining, so you can order blanks or rough machined pieces rather than full lengths.
Do you provide test reports and additional testing on 301 (A, 1/4H, 1/2H, 3/4H, FH)?
Every order ships with mill test reports and heat traceability. If your print calls for ultrasonic inspection, penetrant dye, magnetic particle, chemical assay, micrography, hardness or mechanical testing and our stock does not already carry it, we can quote the material with that work performed.
Can 301 (A, 1/4H, 1/2H, 3/4H, FH) be supplied to DFARS domestic melt requirements?
Tell us at quote stage if the order is DFARS or domestic melt restricted and we will confirm availability against that requirement before you commit.
What do you need to quote 301 (A, 1/4H, 1/2H, 3/4H, FH)?
Grade, form, dimensions, quantity, specification and condition, plus any testing or certification requirements and the date you need it. Send a drawing if you have one. Quotes are typically ready within 24 hours.
How does 301 (A, 1/4H, 1/2H, 3/4H, FH) compare with 17-7 PH?
Formed soft and hardened afterward, higher strength after forming.