SS 439 Strip Coil is a titanium-stabilized ferritic stainless steel known for its excellent corrosion resistance, superior weldability, and outstanding oxidation resistance at elevated temperatures. Compared to conventional ferritic grades, Stainless Steel 439 Strip Coil offers enhanced durability and thermal performance, making it a preferred choice for automotive exhaust systems, heat exchangers, chimney liners, and industrial fabrication.
We supply precision slit coils and strip coils in SS 439 grade with customized widths, thicknesses, and finishes to meet the requirements of automotive, engineering, and manufacturing industries.
Available in ready stock and custom slit sizes, our SS 439 Strip Coils provide consistent quality, dimensional accuracy, and reliable performance in demanding applications.
Why choose SS 439 strip coil?
SS 439 is widely selected where superior corrosion resistance, excellent weldability, and long-term heat resistance are required. The titanium stabilization minimizes intergranular corrosion and improves weld integrity.
Compared to SS 409 and SS 430, Stainless Steel 439 offers better corrosion resistance and improved performance in high-temperature environments, making it an ideal material for automotive exhaust and industrial thermal applications.
Key Features of Stainless Steel 439
Excellent corrosion resistance
Superior oxidation resistance at elevated temperatures
Titanium-stabilized ferritic stainless steel
Outstanding weldability
Good formability and fabrication characteristics
Resistance to stress corrosion cracking
Longer service life in exhaust systems
Cost-effective alternative to certain austenitic grades
Suitable for continuous high-temperature operation
Product Range
Specification
Details
Grade
SS 439
UNS Number
S43035
Werkstoff Number
1.4510
Standard
ASTM A240 / EN Standards
Form
Slit Coil / Strip Coil
Thickness Range
0.40mm – 4.00mm
Width Range
10mm – 100mm+
Finish
BA, 2B, No.1
Edge Condition
Mill Edge / Slit Edge
Custom Sizes
Available Upon Request
We maintain ready stock of Stainless Steel 439 Strip Coils in multiple thicknesses and widths to support urgent production requirements. Our precision slitting capabilities allow us to supply narrow strip coils and customized slit coils with consistent tolerances and superior edge quality.
Whether you require SS 439 Strip Coil for automotive exhaust systems, thermal processing equipment, or industrial fabrication, we provide reliable supply, competitive pricing, and technical support for every requirement.
Contact us today for stock availability, technical specifications, and customized quotations for SS 439 Strip Coil.
chemical Composition
Designation
ASTM A240 – UNS S43932
%C
0.03
max
%Mn
1.00
max
%S
0.03
max
%P
0.04
max
%Si
1.00
max
%Ni
0.5
max
%Cr
17 - 19
%N
0.03
max
%(Ti+Nb)
0.2+4X(C+N)
%Al
0.15
max
Mechanical Properties
Specification
ASTM A240 – UNS S43932
UTS
(MPa)
415 min
YS
(MPa)
205 min
%EL
22 min
Hardness
89 HRB max
Precision-engineered, narrow rolls of stainless steel produced by slitting master coils into specific widths. Known for exceptional surface quality and tight dimensional tolerances, widely used in manufacturing flexible tubing, springs, and heating elements.
SS 409 / 409L Strip Coil
SS 410 Strip Coil
SS 430 Strip Coil
SS 436 / 436L Strip Coil
SS 441 Strip Coil
Address
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