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Corrosion-Resistant 439 Grade Stainless Steel Plate Excellent Formability &

China Corrosion-Resistant 439 Grade Stainless Steel Plate Excellent Formability &

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Corrosion-Resistant 439 Grade Stainless Steel Plate Excellent Formability &

MOQ： 500 kgs
Price： 1.5 - 2USD/Kg
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Payment Terms	L/C, T/T, Western Union
Supply Ability	20Ton per week
Delivery Time	5 - 12 days based on the quantity
Packaging Details	standard packing for export
Products	Stainless Steel Sheet
Grade	439
Thickness	0.5 - 10.0
Tech	cold rolled
Width	1219mm
Surface	2B 2D NO.1
Standard	ASTM GB JIS EN DIN
MOQ	1 Ton
Brand Name	TISCO
Model Number	439
Certification	ISO
Place of Origin	China

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Product Specification


Payment Terms	L/C, T/T, Western Union	Supply Ability	20Ton per week
Delivery Time	5 - 12 days based on the quantity	Packaging Details	standard packing for export
Products	Stainless Steel Sheet	Grade	439
Thickness	0.5 - 10.0	Tech	cold rolled
Width	1219mm	Surface	2B 2D NO.1
Standard	ASTM GB JIS EN DIN	MOQ	1 Ton
Brand Name	TISCO	Model Number	439
Certification	ISO	Place of Origin	China
High Light	439 grade stainless steel plate ，corrosion-resistant stainless steel sheet ，weldable stainless steel plate

Corrosion-Resistant 439 Grade Stainless Steel Plate Excellent Formability & Weldability

Stainless Steel Plate Specifications

Name	439 stainless steel Plate
Our Grade	200 Series: 201 202 300 Series: 301 304,304L,304H,309S,310S,314,316L,316Ti,316H,316LN,317L,321,329,347 400 Series: 409L,410,410S,415,416,420,430,431,436L.439,441,443,444,445,446 Super Stainless Steel: 904L,926,254SMO,654SMO,15-5PH,17-4PH,17-7PH.etc Nickel Alloy: C276, C22,G35,Alloy X,Monel 400,K500,Inconel 600,601,617,625,718,Incoloy 800,800H,800HT,825.etc
Technique	Hot Rolled, Cold Rolled,Forged
Standard	JIS, AISI, ASTM, DIN, TUV, BV, SUS, etc
Thickness	0.1 – 80.0mm
Width range	10mm – 2000mm
Length	Customized
Finish	2B,2D,NO.1, BA, No.4, 8k, Brushed,Hairline,PVD Coating,Sandblasted
Service	Laser Cutting, Bending
Sample	Available

Corrosion-Resistant 439 Grade Stainless Steel Plate – Excellent Formability & Weldability for Demanding Applications

Product Introduction

Grade 439 stainless steel plate is a titanium-stabilized, ferritic stainless steel engineered for superior corrosion resistance, excellent formability, and reliable weldability—making it an ideal solution for automotive exhaust systems, heat exchangers, appliance components, and other high-performance industrial applications. With a chromium content of 17–19% and ultra-low carbon and nitrogen levels, Grade 439 delivers enhanced resistance to oxidation and intergranular corrosion, even after welding or prolonged exposure to elevated temperatures.

Available in thicknesses from 0.8 mm to 10.0 mm, this material combines the cost-efficiency of ferritic stainless steels with performance characteristics that rival more expensive austenitic grades—offering engineers and manufacturers a smart, sustainable material choice without compromising on durability or manufacturability.

Why Grade 439 Stands Out

✅ Superior Corrosion Resistance

Resists rust, pitting, and crevice corrosion in chloride-containing environments (e.g., road salt).
Forms a stable, self-healing chromium oxide layer for long-term protection.
Ideal for components exposed to acidic condensates in exhaust systems (e.g., sulfuric and nitric acids).

✅ Excellent Formability

High elongation (>25%) and low yield-to-tensile ratio enable deep drawing, bending, and stamping.
Suitable for complex geometries in mufflers, catalytic converter shells, and manifolds.

✅ Outstanding Weldability

Titanium stabilization prevents chromium carbide precipitation during welding.
Eliminates the need for post-weld annealing in most applications.
Compatible with common welding methods: TIG, MIG, resistance spot welding, and laser welding.

✅ High-Temperature Performance

Continuous service up to 800°C (1472°F).
Resists scaling and maintains structural integrity under thermal cycling.

Technical Specifications

Parameter	Details
Grade Designation	UNS S43035 / ASTM A240 Type 439 / EN 1.4510 / JIS SUS 439
Material Type	Ferritic, Titanium-Stabilized Stainless Steel
Thickness Range	0.8 mm – 10.0 mm
Width Options	600 mm – 2000 mm (custom widths available)
Length / Coil Form	Cut-to-length sheets or mill coils
Surface Finishes	2B (standard), BA (Bright Annealed), No.1, Hairline, or custom finishes
Standards Compliance	ASTM A240/A240M, EN 10088-2, JIS G4305, GB/T 4237
Certifications	ISO 9001, IATF 16949, RoHS compliant; Mill Test Reports (MTRs) provided

Chemical Composition (Typical, Weight %)

Element	C	Si	Mn	P	S	Cr	Ni	N	Ti
Max	≤0.03	≤1.0	≤1.0	≤0.04	≤0.03	17.0–19.0	≤0.5	≤0.04	≥0.2 + 4×(C+N); ≤1.10

Note: The precise Ti/C+N ratio ensures optimal stabilization, preventing sensitization during fabrication.

Mechanical Properties (Annealed Condition)

Property	Typical Value
Tensile Strength	450 – 600 MPa
Yield Strength (0.2% offset)	≥280 MPa
Elongation (in 50 mm)	≥25%
Hardness (HRB)	≤88
Density	7.70 g/cm³
Thermal Conductivity	～26 W/m·K (at 100°C)
Coefficient of Thermal Expansion	10.4 × 10⁻⁶ /°C (20–100°C)

These properties support high-speed stamping, roll forming, and robotic welding in automated production lines.

Key Applications

Automotive Exhaust Systems: Manifolds, catalytic converters, mufflers, tailpipes
Household Appliances: Oven liners, dishwasher components, washing machine drums
Industrial Equipment: Heat exchangers, burner parts, flue ducts
Architectural Trim: Where moderate corrosion resistance and aesthetic finish are required

Grade 439 is especially favored in emission-critical automotive applications, where material failure is not an option.

Comparison with Common Stainless Grades

Feature	Grade 439	Grade 409	Grade 430	Grade 304
Chromium (%)	17–19	10.5–11.75	16–18	18–20
Stabilized?	Yes (Ti)	Yes (Ti)	No	No (unless 321/347)
Max Use Temp (°C)	～800	～650	～700	～870
Intergranular Corrosion Resistance	Excellent	Good	Poor (after welding)	Excellent
Formability	Excellent	Good	Moderate	Excellent
Cost Efficiency	High	Very High	High	Low

Grade 439 outperforms 409 and 430 in high-temperature corrosion resistance while remaining significantly more economical than 304.

Quality Assurance & Traceability

Every batch of Grade 439 plate undergoes:

Spectrometric chemical analysis
Tensile and hardness testing
Surface inspection (automated optical scanning)
Dimensional verification (laser micrometers for thickness tolerance ±0.02 mm)

Full Mill Test Reports (MTRs) per EN 10204 3.1 are provided. Our production facilities are IATF 16949 certified, ensuring compliance with global automotive quality standards.

Sustainability & Recyclability

Contains ≥60% recycled content
Fully recyclable at end-of-life with no loss of properties
Supports lightweight design (thin gauges reduce vehicle weight → lower emissions)
Long service life reduces maintenance and replacement frequency

Packaging & Delivery

Sheets: Bundled with protective paper, strapped, and palletized
Coils: VCI-wrapped, waterproof packaging, wooden pallets
Export-ready for sea, air, or land transport
Lead time: 7–15 days from stock; 30–45 days for custom orders

Why Partner With Us?

Global Supply Network: Reliable delivery to North America, Europe, Asia, and beyond
Technical Expertise: Material selection, prototyping, and process optimization support
Custom Capabilities: Slitting, blanking, laser cutting, and surface finishing services
Competitive Pricing: Direct mill relationships ensure cost efficiency without quality compromise

Conclusion

Grade 439 stainless steel plate offers an unmatched combination of corrosion resistance, formability, and weldability in a cost-effective ferritic platform. Whether you're designing next-generation exhaust systems or durable industrial components, Grade 439 delivers the reliability and performance your application demands.

Request a sample, technical datasheet, or custom quote today—and experience the difference of precision-engineered stainless steel.

Corrosion-resistant 439 stainless steel plate, Grade 439 stainless steel sheet, titanium-stabilized ferritic stainless steel, 439 stainless for exhaust systems, excellent formability stainless steel, weldable automotive stainless plate, ASTM 439 plate 0.8–10mm, EN 1.4510 stainless coil, high-temperature stainless steel, IATF 16949 certified stainless supplier.

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Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...

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JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
https://www.stainless-strips.com/

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