Stainless Steel Blanks
Stainless steel blanks combine the structural strength of carbon steel with exceptional corrosion resistance, making them indispensable in food processing, medical devices, marine hardware, chemical handling, and architectural applications. Our stainless steel blank inventory spans the most widely specified grades in the industry. Type 304, the workhorse austenitic grade, covers everything from commercial kitchen equipment to chemical tanks. Type 316 adds molybdenum for superior chloride resistance in marine and pharmaceutical environments. For applications requiring hardness and wear resistance, 410 martensitic stainless can be heat treated to useful hardness levels. Precipitation-hardened 17-4 PH delivers aerospace-grade strength without sacrificing corrosion performance. Each blank is cut from certified domestic or prime import mill stock with full material traceability. From restaurant equipment to oil platform components, stainless steel blanks provide the performance and longevity that critical applications demand.
Available Forms
Grade Reference
| Grade | Type | Common Use | Typical Form |
|---|---|---|---|
| 304 | Austenitic | Food & chemical processing | Sheet |
| 316 | Marine Grade | Marine & medical | Sheet |
| 410 | Martensitic | Cutlery & valves | Bar |
| 17-4 PH | Precipitation Hardened | Aerospace & oil gas | Bar |
Detailed Specs by Grade & Form
Frequently Asked Questions
What is the difference between 304 and 316 stainless steel?
Both 304 and 316 are austenitic stainless steels with similar appearance and forming characteristics, but 316 contains 2-3% molybdenum which dramatically improves resistance to chloride pitting and crevice corrosion. For indoor food service, general chemical processing, and architectural trim, 304 provides excellent performance at lower cost. When the application involves saltwater exposure, chlorinated cleaning agents, pharmaceutical processing, or coastal environments, 316 is the grade to specify. The price premium for 316 is typically 20-30% over 304.
Can stainless steel blanks be heat treated?
It depends on the grade. Austenitic grades like 304 and 316 cannot be hardened by heat treatment; they can only be strengthened through cold working. Martensitic grades like 410 can be hardened to approximately 40 HRC through austenitizing and tempering, making them suitable for cutlery and wear applications. 17-4 PH achieves its high strength through a precipitation hardening treatment at relatively low temperatures of 900-1150°F, which minimizes distortion and scaling compared to conventional hardening.
Is stainless steel difficult to machine?
Stainless steel requires more attention than carbon steel or aluminum but is readily machinable with proper technique. The key challenges are work hardening, which means you must maintain positive feed rates and avoid dwelling, and heat generation, which requires adequate coolant flow. Use sharp carbide tooling with positive rake geometry, reduce cutting speeds by about 40% compared to mild steel, and maintain steady chip load. 304 and 316 have similar machinability ratings around 45% of B1112 free-machining steel. The free-machining variant 303 is available when maximum machinability is needed.
Will stainless steel blanks rust?
Stainless steel resists rusting far better than carbon steel but is not completely immune to corrosion. The chromium content forms a passive oxide layer that self-repairs when damaged, but this protection can break down in certain conditions. Chloride exposure, contamination from carbon steel particles, crevice conditions, and heat tint from welding can all initiate corrosion on stainless surfaces. Proper grade selection for the environment, passivation treatment after fabrication, and avoiding contact with carbon steel tools will keep stainless blanks performing as intended for decades.