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Precision-Rolled 439 Stainless Steel Sheet Optimized for Heat Resistance and Durability

Lugar de origen	Porcelana
Nombre de la marca	TISCO
Certificación	ISO
Número de modelo	439
Cantidad de orden mínima	500 kgs
Precio	1.5 - 2USD/Kg
Detalles de empaquetado	Embalaje estándar para la exportación
Tiempo de entrega	5 - 12 días basado en la cantidad
Condiciones de pago	LC, T/T, Western Union
Capacidad de la fuente	20ton por semana

Éntreme en contacto con gratis las muestras y los vales.

whatsapp:0086 18588475571

Wechat: 0086 18588475571

Skype: sales10@aixton.com

Si usted tiene alguna preocupación, proporcionamos ayuda en línea de 24 horas.

Datos del producto

productos	Hoja de acero inoxidable	Calificación	439
Espesor	0,5 - 10,0	Técnico	Enrollado
Ancho	1219m m	Superficie	2B 2D NO.1
Estándar	ESTRUENDO DEL EN DE ASTM GB JIS	Cantidad mínima de pedido	1 tonelada

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Descripción de producto

Precision-Rolled 439 Stainless Steel Sheet Optimized for Heat Resistance and Durability

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

Precision-Rolled 439 Stainless Steel Sheet – Optimized for Heat Resistance and Durability

Product Overview

Precision-rolled Grade 439 stainless steel sheet is a high-performance, titanium-stabilized ferritic stainless steel engineered for applications demanding exceptional heat resistance, long-term durability, and dimensional accuracy. Ideal for automotive exhaust systems, industrial heat exchangers, catalytic converter housings, and thermal shielding, this material combines advanced metallurgy with tight-tolerance cold rolling to deliver consistent mechanical properties and surface quality.

Manufactured to exacting standards in thicknesses from 0.8 mm to 10.0 mm, our precision-rolled 439 sheets feature ±0.02 mm thickness tolerance, uniform grain structure, and minimal surface defects—ensuring optimal performance in high-temperature, high-corrosion environments where reliability is non-negotiable.

Why Precision Rolling Matters

Unlike standard hot-rolled or loosely controlled cold-rolled products, precision-rolled 439 stainless steel undergoes:

Multi-pass cold reduction with computer-controlled roll gaps
Continuous annealing in hydrogen-nitrogen atmospheres for softness and cleanliness
Electrolytic cleaning and pickling for oxide-free surfaces
In-line laser gauging for real-time thickness monitoring

The result? Sheets with superior flatness, consistent mechanical response, and enhanced formability—critical for automated stamping, robotic welding, and high-yield fabrication.

Engineered for Extreme Conditions

Grade 439 excels where temperatures exceed 650°C (1200°F) and corrosive condensates are present. Key performance attributes include:

✅ Outstanding Oxidation Resistance
Stable up to 800°C (1472°F) due to a dense, self-healing Cr₂O₃ layer that resists scaling and spallation.

✅ Titanium Stabilization
Ti binds carbon and nitrogen, preventing chromium depletion at grain boundaries—eliminating intergranular corrosion after welding or prolonged high-temp exposure.

✅ Low Thermal Expansion
Ferritic structure offers ～30% lower expansion than austenitic grades, reducing warpage and joint fatigue in cyclic heating applications.

✅ High Durability
Resists pitting from road salt, acid condensates (H₂SO₄, HNO₃), and sulfur-rich exhaust gases—extending component life by 2–3× vs. mild steel or 409 stainless.

✅ Excellent Fabrication Characteristics
Despite its strength at temperature, it maintains >25% elongation for deep drawing, bending, and hydroforming without cracking.

Technical Specifications

Parameter	Details
Grade	UNS S43035 / ASTM A240 Type 439 / EN 1.4510 / JIS SUS 439
Form	Precision Cold-Rolled Sheet
Thickness Range	0.8 mm – 10.0 mm (custom tolerances available)
Standard Tolerance	±0.02 mm (for 0.8–3.0 mm); ±0.05 mm (for >3.0 mm)
Widths	600–2000 mm (standard); custom slitting available
Lengths	Cut-to-length (e.g., 2438 mm / 8 ft) or coil
Surface Finish	2B (standard), BA, Hairline, or customer-specified
Standards	ASTM A240, EN 10088-2, JIS G4305, GB/T 4237
Certifications	ISO 9001, IATF 16949, RoHS; EN 10204 3.1 MTRs provided

Chemical Composition (Typical, wt%)

Element	C	Si	Mn	P	S	Cr	Ni	N	Ti
Max/Range	≤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: Tight control of C+N (<0.05%) and Ti ensures maximum stabilization efficiency.

Mechanical & Physical Properties (Annealed Condition)

Property	Typical Value
Tensile Strength	450 – 600 MPa
Yield Strength (0.2% offset)	≥280 MPa
Elongation	≥25% (in 50 mm)
Hardness (HRB)	≤88
Density	7.70 g/cm³
Thermal Conductivity (100°C)	26 W/m·K
Coefficient of Thermal Expansion (20–100°C)	10.4 × 10⁻⁶ /°C
Max Continuous Service Temp	800°C (1472°F)

Applications

Automotive: Exhaust manifolds, catalytic converter shells, mufflers, tailpipes
Industrial: Burner tubes, flue gas ducts, heat recovery units
Appliances: Oven liners, dishwasher tanks, dryer drums
Energy: Biomass boiler components, solar thermal receivers

Precision-rolled 439 is especially valued in emission-critical systems where material failure risks regulatory non-compliance or warranty claims.

Advantages Over Standard Grades

Feature	Precision-Rolled 439	Standard 409	Hot-Rolled 430
Thickness Tolerance	±0.02 mm	±0.10 mm or worse	±0.20 mm
Surface Quality	Smooth, defect-free	Scale, pits common	Rough, oxidized
Formability Consistency	High (uniform grain)	Variable	Poor
Post-Fabrication Yield	>95%	80–85%	<80%
High-Temp Performance	Excellent	Moderate	Fair

This consistency translates to lower scrap rates, faster cycle times, and reduced rework.

Quality Assurance Process

Every coil/sheet undergoes:

Spectrometric chemistry verification
Tensile & hardness testing per batch
Automated surface inspection (CCD cameras detect micro-defects)
Laser thickness profiling across width and length
Full traceability from melt ID to final shipment

All products comply with IATF 16949, the global automotive quality standard.

Sustainability & Lifecycle Value

60–80% recycled content
Fully recyclable at end-of-life
Enables thinner designs (e.g., 1.2 mm vs. 1.5 mm) → weight savings → lower CO₂ emissions
Long service life reduces replacement frequency and resource consumption

A true “green” material for sustainable manufacturing.

Packaging & Delivery

Sheets: interleaved with anti-scratch paper, strapped on export pallets
Coils: VCI-wrapped, waterproof, mounted on iron cores
Global logistics via sea, air, or land
Lead time: 7–15 days (stock); 30–45 days (custom orders)

Partner With Confidence

We offer more than material—we provide:

Technical consultation for material selection and process optimization
Prototype support with rapid sample delivery
Value-added services: slitting, blanking, laser cutting, edge conditioning
Just-in-time (JIT) inventory programs for high-volume customers

Conclusion

Precision-rolled Grade 439 stainless steel sheet sets a new benchmark for heat resistance, dimensional accuracy, and long-term durability in extreme environments. By combining advanced rolling technology with the proven chemistry of titanium-stabilized ferritic stainless steel, it delivers unmatched reliability for mission-critical components.

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