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Cold Rolled 439 Stainless Steel Sheet with Corrosion Resistance for Automotive Exhaust Applications

Certification	AISI
Minimum Order Quantity	100 kg
Price	US $1.55-2 / kg

Product Details

Model NO.	439m	Shape	Flat
Technique	Cold Rolled	Surface Treatment	Bright
Specification	12202440, 15003000, 15006000, 20006000mm	Production Capacity	500000kgs
Carbon Content	0.070	Silicon Content	1.00
Manganese Content	1.00	Phosphorus Content	0.040
Sulfur Content	0.030	Chromium Content	17.00~19.00
Titanium Content	≥ 0.20+4(C+N)min - 0.50 Max	Tensile Strength	455
Yield Strength	290
Highlight	Cold Rolled Stainless Steel Sheet , Corrosion Resistant 439 Stainless Steel Sheet , Automotive Exhaust Application Inox Sheet

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Product Description

439m Stainless Steel Sheet 1.4910 439 Inox Sheet 2D Finished

439 stainless steel features a balanced composition that maintains a completely ferritic structure across all temperatures, ensuring excellent ductility after welding and superior resistance to intergranular corrosion. Unlike similar ferritic stainless steels such as 430 and 434 alloys, which are susceptible to brittle martensite formation and intergranular corrosion sensitivity in the as-welded condition, 439 stainless steel eliminates the need for post-welding annealing to restore ductility or provide intergranular corrosion resistance.

Key Performance Characteristics

Excellent resistance to stress corrosion cracking
Superior weldability with no post-welding annealing required
High thermal conductivity and low thermal expansion
Low cobalt content ideal for nuclear applications
Good oxidation and corrosion resistance for high-temperature applications

These properties make 439 stainless steel an ideal choice for various applications, including shell and tube heat exchangers where the close match of thermal expansion coefficients with carbon steel shells may eliminate the need for expansion joints. The alloy is particularly suitable for automotive exhaust system components and residential furnace primary heat exchangers where application temperatures exceed the capabilities of 409 stainless steel.

Chemical Composition

Grade	C	Si	Mn	P	S	Cr	Ti
439	0.070	1.00	1.00	0.040	0.030	17.00~19.00	≥ 0.20+4(C+N)min - 0.50 max

Typical Annealed State Mechanical Properties

Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HB)
455	290	34	78

Available Product Forms

Hot-rolled wide strip, cold-rolled wide strip, slit strip, cut sheets, precision strip

We stock 439 hot and cold rolled stainless steel sheet, plate, strip and coil.

Tags:

Cold Rolled 439 Stainless Steel Sheet with Corrosion Resistance for Automotive Exhaust Applications

Cold Rolled Stainless Steel Sheet

Corrosion Resistant 439 Stainless Steel Sheet

Automotive Exhaust Application Inox Sheet