| Production Method | Shapes | Size (Inches) (mm) | Standard Nominal Lengths | Size Tolerances | ||
|---|---|---|---|---|---|---|
| Cold Drawn & Polished | Round  |
Diameter | 3/16” to 7/8” | 4.76 to 22.22 | 3m to 6m | h9 |
Hexagon  |
Across Flat | 1/4” to 2” | 6.35 to 50.80 | 3m to 4m | h11 | |
Square  |
Across Flat | 1/4” to 2” | 6.35 to 50.80 | 3m to 4m | h11 | |
| Pump Shaft Quality | Round |
Diameter | 5/8” to 2” | 16 to 50.80 | 2.5m to 6m | h8 / h9 |
| Smooth Turned & Polished | Round |
Diameter | 1” to 4” | 25.4 to 101.60 | 3m to 6m | h9 / h10 |
| AISI TYPE | Chemical Composition (%) | Other | Common Characteristics & Applications | |||||
|---|---|---|---|---|---|---|---|---|
| C | Mn | Si | Cr | Ni | Mo | |||
| Austenitic | ||||||||
| 303 | 0.15 | 2.00 | 1.00 | 17.0 - 19.0 | 8.0 - 10.0 | - | S 0.15min | Free machining grade for high speed repetition machining. |
| 304 | 0.08 | 2.00 | 1.00 | 18.0 - 20.0 | 8.0 - 11.0 | - | - | Standard 18/8 austenitic grade. High corrosion resistance. |
| 304L | 0.030 | 2.00 | 1.00 | 18.0 - 20.0 | 8.0 - 12.0 | - | - | Improved weldability and resistance to intergranular corrosion. |
| 316 | 0.080 | 2.00 | 1.00 | 16.0 - 18.0 | 10.0 - 14.0 | 2.0 - 3.0 | - | Superior corrosion and pitting resistance compared to 304. |
| 316L | 0.030 | 2.00 | 1.00 | 16.0 - 18.0 | 10.0 - 14.0 | 2.0 - 3.0 | - | Low carbon for better weldability and corrosion resistance. |
| 316Ti | 0.080 | 2.00 | 1.00 | 16.0 - 18.0 | 10.0 - 14.0 | 2.0 - 3.0 | Ti5x(C+N)-0.70 | Titanium stabilized for high-temperature applications. |
| 321 | 0.080 | 2.00 | 1.00 | 17.0 - 19.0 | 9.0 - 12.0 | - | Ti5x(C+N)-0.70 | Titanium stabilized; excellent high-temperature strength. |
| Ferritic | ||||||||
| 430 | 0.12 | 1.00 | 1.00 | 16.0 - 18.0 | - | - | - | Good corrosion resistance; non-hardenable; magnetic. |
| 430F | 0.12 | 1.25 | 1.00 | 16.0 - 18.0 | - | - | S 0.25min | Free-machining version of 430; magnetic. |
| Martensitic | ||||||||
| 410 | 0.15 | 1.00 | 1.00 | 11.5 - 13.5 | - | - | - | Hardenable; good strength and moderate corrosion resistance. |
| 416 | 0.15 | 1.25 | 1.00 | 12.0 - 14.0 | - | - | S 0.15min | Free-machining; lower corrosion resistance than 410. |
| 420 | 0.16 - 0.25 | 1.00 | 1.00 | 12.0 - 14.0 | - | - | - | Higher hardness; used for blades, tools, and surgical instruments. |
| 431 | 0.20 | 1.00 | 1.00 | 15.0 - 17.0 | 1.25 - 2.50 | - | - | High strength; used in shafts, fasteners, and valve parts. |
| 440C | 0.95 - 1.20 | 1.00 | 1.00 | 16.0 - 18.0 | - | 0.75 | - | Very high hardness; wear-resistant; often used for bearings, knives. |
| AISI TYPE | Chemical Composition (%) | Other | Common Characteristics & Applications | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| C | SI | MN | P | S | NI | CR | CU | |||
| 201 | 0.15 | 1.00 | 7.00 - 9.00 | 0.1 | 0.03 | 0.40 - 1.00 | 14.00 - 16.00 | 1.50 - 2.50 | Furniture, decorative items, baskets, and agricultural products. | |
| 202 | 0.15 | 1.00 | 7.50 - 10.00 | 0.06 | 0.03 | 4.00 - 6.00 | 17.00 - 19.00 | 1.50 - 2.50 | Shafts, Grill, and Racks. | |
| 204 Cu | 0.09 | 1.00 | 6.50 - 8.50 | 0.06 | 0.03 | 1.50 - 3.00 | 16.00 - 17.00 | 2.00 - 3.00 | Shafts, Grill, and Racks. | |