ASTM A582 Free Machining Stainless Steel Round Bars 303 416 420F 430F
ASTM A582 Free Machining Stainless Steel Round Bars 303 416 420F 430F
We produce Free machining Stainless steel bars as per ASTM A582 / A582M Standard
Specification for Free-Machining Stainless Steel Bars.
303 is the most common “free-machining” grade using sulphur to produce sulphides allowing easier
chip-breaking during machining.
Applications: Threaded fasteners, shafts, valve bodies, precision measurement devices, pneumatic manifolds.
430F is used where a high level of magnetic permeability is required.
This derives from its fully ferritic structure. Its high level of machinability allows volume throughput of components.
Applications: Magnetic cores, solenoid valves, relays, fuel injection systems, anti-lock braking systems,
electromagnetic pumps.
416 is the most common “free-machining” martensitic grade using sulphur to produce sulphides allowing easier
chip-breaking during machining.
Applications: Shafts, axles, gears, valves, fasteners, golf club heads, sensors, precision machined
components, gun barrels, washing machine parts, dowel pins, clamps, collars.
Type 420F, a free-machining version of Type 420, is a hardenable 12% chrome steel with
higher strength, hardness, and wear resistance than Type 410.
Chemical composition wt%
| Grade | C | Si | Mn | P | S | Cr | Ni | Mo | Se |
| 303 | 0.15 | 1.00 | 2.00 | 0.20 | 0.15 min. | 17.0~19.0 | 8.0~10.0 | ||
| 303Se | 0.15 | 1.00 | 2.00 | 0.20 | 0.06 | 17.0~19.0 | 8.0~10.0 | 0.15 min | |
| 416 | 0.15 | 1.00 | 1.25 | 0.06 | 0.15 min | 12.0~14.0 | |||
| 420F | 0.30~0.40 | 1.00 | 1.25 | 0.06 | 0.15 min | 12.0~14.0 | 0.50 | ||
| 440F | 0.95~1.20 | 1.00 | 1.25 | 0.06 | 0.15 min | 16.0~18.0 | 0.50 | ||
| 430F | 0.12 | 1.00 | 1.25 | 0.06 | 0.15 min | 16.0~18.0 |
For Details, please Contact
WUXI GUANGLU Special Steel Co., Ltd.
Stainless martensitic • precipitation hardening steel • stainless ferritic — Our answer to your needs
Tel: +86 510 81812873
Email: export@guanglusteel.com
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