TISCO 445 Stainless Steel Sheet JIS G4305 Thickness 0.6 - 2.0mm
Cold Rolled 2B
Introduction
Stainless steel grade 445 is one of the most widely used
precipitation hardening grade steels. Although this material is
soft and ductile in the solution annealed condition, it is very
capable of good properties with a single precipitation or aging
treatment. This steel possesses good corrosion resistance, high
harness, toughness and strength.
The following datasheet provides an overview of stainless steel
grade 445.
Grade 445 is low carbon ferritic stainless steels conforming to UNS
S44500.
This grade offers outstanding resistance to corrosion and is well
suited for a wide range of applications,
typically used for hot water tanks and tubing, heat exchangers,
solar collector panels, food processing
and handling equipment, sinks and architectural panels.
Grade 445 is stabilized with niobium to prevent sensitization and
intergranular corrosion when welded.
This grade is not susceptible to chloride stress corrosion
cracking.
The alloy cannot be strengthened by heat treatment as work
hardening of ferrite is much less than for austenite.
Chemical Composition
The chemical composition of grade 445 stainless steel is outlined
in the following table.
| Element | Content (%) |
|---|
| Iron, Fe | Balance |
| Chromium, Cr | 19-21 |
| Silicon, Si | ≤1.00 |
| Manganese, Mn | ≤1.00 |
| Nickel, Ni | ≤0.60 |
| Phosphorous, P | ≤0.04 |
| Carbon, C | ≤0.020 |
| Sulfur, S | ≤0.012 |
Mechanical Properties
The mechanical properties of grade 445 stainless steel are
displayed in the following table.
| Properties | Metric | Imperial |
|---|
| Tensile strength | 427 MPa | 61931 psi |
| Yield strength | 205 MPa | 29732 psi |
| Modulus of elasticity | 190-210 GPa | 27557- 30457 ksi |
| Poisson’s ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break | 22% | 22% |
| Hardness | 83 | 83 |
Manufacturing Process
The 445 stainless steel grade can be machined into long gummy
chips. For heat treatment of this material, it must be soaked at
1038°C (1900°F) for 30 min and then cooled below 16°C (60°F) for
complete martensite transformation. Common fusion and resistance
methods can be used to weld grade 445 steel. Oxyacetylene welding
should be avoided. AWS E/ER630 filler metal is recommended. The
material has to be soaked for 1 h at 1177°C (2150°F) for performing
forging. The material should not be worked below 1010°C (1850°F).
Before final hardening, post-work solution treatment is required.
Applications
White goods: Dish washer and dryers, refrigerator business use,
microwave ovens, washing machine tubs,
induction heaters, rice cookers
Automotive Exhaust system: Catalytic converter
Kitchenware: Cookware
We stock AISI 445, JIS SUS445J1, SUS445J2 hot and cold rolled steel
sheet, plate, strip and coil.
