Stainless Steel 405 (UNS S40500)

wilsonpipeline Stainless inventory includes Alloy 405 (UNS S40500) in  Stainless Steel Pipes.  Other product forms such as Stainless Steel Flanges, Stainless Steel Pipe Fittings.

Overview

General Properties

Alloy 405 is a 12% chromium stainless steel designed to be used in the as-welded condition. Unlike the other grades of 12% chromium stainless, 405 is not vulnerable to extensive hardening through air cooling from high temperatures.

Specifications: UNS S40500

Applications:

Applications that frequently use alloy 405 include, but are not limited to:

1. Steam nozzles

2. Partitions

3. Annealing boxes

4. Quenching racks

5. Fabrications that cannot be annealed after welding

Standards:

1. ASTM/ASME: UNS S40500

2. EURONORM: FeMi35Cr20Cu4Mo2

3. DIN: 2.4660

Resistance

Corrosion Resistance

1. Same corrosion resistance of Type 410 Steel

2. Used in situations where more weldability is desired than Type 410

Processing

Machinability

1. Type 405 can be easily machined due to its soft and ductile characteristics

 Weldability

1. Can be welded using shielded fusion and resistance techniques

2. Oxyacetylene is not recommended

3. Post weld annealing will maximize ductility

Properties

Chemical Properties:CCrFeMnSiSPNiAl4050.08 max

min: 11.5 max: 14.5balance

1.0 max1.0 max0.03 max

0.04 max

0.50 max

min: 0.1 max: 0.3

Mechanical Properties:GradeTensile Strength ksi (MPa) minYield Strength 0.2% offset ksi (MPa) minElongation (% in 50mm) minHardness (Brinell) MAXHardness (Rockwell B) MAX405

60 (415)

25 (170)20

17988

Physical Properties:Denstiy lbm/in3Coefficient of Thermal Expansion (min/in)-°FThermal Conductivity BTU/hr-ft-°FSpecific Heat BTU/lbm -°FModules of Elasticity (annealed)2-psiat 68 °Fat 68 – 212°Fat 68 – 1832°Fat 200°Fat 32 – 212°Fin tension (E)0.2799.220.54160.1128 x 106