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전화 번호 : 18751558002

왓츠앱 : +8618751558002

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

원래 장소	중국
브랜드 이름	TISCO
인증	ISO
모델 번호	439
최소 주문 수량	500kgs
가격	1.5 - 2USD/Kg
포장 세부 사항	수출을위한 표준 포장
배달 시간	수량에 따라 5-12 일
지불 조건	L/C, T/T, 웨스턴 유니온
공급 능력	주당 20ton

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왓츠앱:0086 18588475571

위챗: 0086 18588475571

스카이프: sales10@aixton.com

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제품 상세 정보

제품	스테인레스 스틸 시트	등급	439
두께	0.5 - 10.0	기술	콜드 롤
너비	1219 밀리미터	표면	2B 2D NO.1
기준	ASTM GB JIS EN DIN	MOQ	1톤

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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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