What Is 439 Stainless Steel?
SUS/ASTM 439 stainless steel is a titanium-stabilized ferritic stainless steel (equivalent to UNS S43035 / EN 1.4510). It offers good corrosion resistance, especially in mildly corrosive environments, and better high-temperature oxidation resistance than 409 stainless steel. Because it contains 17–19% Cr and Ti-stabilizing elements, 439 sheet is widely used for:
Automotive exhaust components
Heat exchanger shells
Industrial equipment housings
Kitchen appliances
Decorative panels
LPG/NGV converter shells
For buyers, 439 stainless steel is a cost-effective alternative to 304, with lower price per ton and stable performance in non-chloride environments.
We have 439 hot rolled sheets, 439 cold rolled sheets, 439 seamless sheets, 439 welded sheets, 439 perforated sheets, 439 polished sheets, 439 brushed sheets, 439 annealed sheets. We offer customizable processing methods such as cutting, bending, welding, polishing, surface finishing, heat treatment, laser cutting, punching, drilling, stamping, grinding, and machining for 316 Stainless Steel Sheet.
439 Stainless Steel plate in stock
| Standard |
ASTM A240 |
|---|---|
| Grade |
022Cr19Ti, 1.4510, SUS439 |
| Length |
6000 mm (236.22 in) to 12000 mm (472.44 in), Customized |
| Width |
1000 mm (39.37 in) to 1500 mm (59.06 in), Customized |
| Thickness |
0.5 mm (0.02 in), 3 mm(0.12 in) 6.0 mm (0.24 in), Customized |
| Technique |
Annealed, Cold Drawn, Forged, Heat Treated, Hot Rolled, Machined, Pickled, Turned |
| Surface Finish |
2B, BA, Embossed, HL (Hairline), Matte, Mirror, No.1, No.4, Satin, SB (Scotch-Brite) |
| Form |
Annealed Sheet, Brushed Sheet, Cold rolled sheet and plate, Heat-treated plate, Hot rolled sheet and plate, Perforated sheet, Polished sheet, Seamless sheet, Welded sheet |
Chemical Composition of 439 Stainless Steel
| Element | Typical Content (%) |
|---|---|
| Carbon (C) | ≤ 0.030 |
| Chromium (Cr) | 17.0 – 19.0 |
| Titanium (Ti) | 0.10 – 1.10 |
| Manganese (Mn) | ≤ 1.00 |
| Silicon (Si) | ≤ 1.00 |
| Nickel (Ni) | ≤ 0.50 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Iron (Fe) | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 415–450 MPa |
| Yield Strength | 205–240 MPa |
| Elongation | ≥ 22% |
| Hardness | ≤ 89 HRB |
| Thermal Conductivity | ≈ 25 W/m·K |
Price of 439 Stainless Steel Sheet per Ton (Today)
Current global market levels (factory-direct export price):
⭐ Today's Reference Price Range
USD 1,050 – 1,350 per ton (cold rolled 2B)
USD 900 – 1,150 per ton (hot rolled No.1)
Payment Terms
| Terms | Specification |
|---|---|
| Minimum Order Quantity: | 5 Tons |
| Price: | To be negotiated |
| Packaging Details: |
As Requested |
| Delivery Time: | Within 7-10 Working Days |
| Payment Terms: | T/T, L/C, Credit Card |
| Supply Ability: | 100000 Tons per month |
| Certification: | RoHS, BIS, SABS, tisi, KS, JIS, ISO9001 |
439 stainless steel sheets are processed using advanced production equipment to ensure the precision and consistency of each sheet. The factory uses efficient tools such as laser cutting machines, CNC punching machines, and polishing equipment to process stainless steel sheets of various specifications with thicknesses ranging from 0.3mm to 8mm, ensuring that products meet international standards such as ASTM A240. Each batch undergoes rigorous quality inspection before leaving the factory, including checks on surface finish, thickness tolerances, and dimensional accuracy, to ensure that products meet customer requirements.
Secure Packaging: Sheets are wrapped in protective film and covered with plywood or steel to prevent damage during transit.
Custom Sizes: We offer customizable packing dimensions to fit client specifications and optimize shipping.
Labeling and Documentation: Clear labeling and thorough documentation ensure accurate tracking and handling.
