Stainless Steel 410/420 (UNS S41000/UNS S42000)

Stainless steel 410/420, also known as UNS S41000 and UNS S42000, is considered a basic martensitic stainless steel. Comprised of 11.5% to 13.5% chromium and iron, along with trace amounts of other elements including carbon, manganese, phosphorus, silicon, and sulfur. After heat treatment, Stainless Steel 410 exhibits high mechanical properties, it is magnetic in both hardened and annealed conditions. Upon specification, Stainless Steel 410 can be delivered in a hardened, yet still machinable state for uses where moderate corrosion resistance and high strength are required. Stainless Steel 410 reaches maximum corrosion resistance when hardened, tempered and polished. It can be welded using most common welding methods, hot worked between 2000° F and 2200° F, as well as, cold formed and annealed. Because of all of these traits it is widely considered the “general purpose grade” of stainless steel.

UNS S42000, commonly known as Stainless Steel 420 is the high carbon content version of Stainless Steel 410. Corrosion resistance is similar between the two, but Stainless Steel 420 additionally provides increased strength and hardness. Like Stainless Steel 410 it is also considered a “general purpose grade” including at least 12% chromium, which is enough to give it acceptable corrosion resistance. Typically, Stainless Steel 420 achieves its best corrosion resistance when the alloy is hardened and polished, or surface ground.

Industries that use 410 & 420 include:

1. Automotive

2. Dental/Medical

3. Electrical

4. Food processing

5. Forging

6. Petrochemical

7. Tool

8. Tractor

Products partially or completely constructed of 410 & 420 include:

1. Bearings

2. Bushings

3. Cutlery

4. Dies

5. Fasteners

6. Hand tools

7. Plastic molds

8. Pump shafts

9. Screens

10. Steam/Gas

11. Surgical instruments

12. Turbine blades

13. Valves/Valve components

Applications

1. Pump Shafts

2. Valve Components

3. Gas and Steam Turbine Components

Stainless Steel 410 Flanges & 420 Stock

1. Blind Flanges

2. Lap Joint Flanges

3. Weld Neck Flanges

4. Slip On Flanges

5. Plate Flanges

Stainless Steel 420 Pipes & 420 Stock

1. Welded Steel Pipes

2. Seamless Steel Pipes

3. Heat Exchanger Tubes

4. ERW Pipes
   

5. Cold Draw Seamless Pipes

Stainless Steel 410 Pipe Fittings & 420 Stock

1. Butt Welding Fittings

2. Forged Fittingss

3. Equal Tee

4. Reducing Tee
   

5. Concentric Reducer

The information above is not warranted, guaranteed, or for design purposes.

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