90-22512, Hui'an Road, Liangxi District, Wuxi City

409L Stainless Steel Plate

409L has strong high temperature resistance, can achieve high-efficiency engine and exhaust system, and reduce the thickness of the exhaust system, which can reduce exhaust emissions.

Tel:+86 18018372311

Email:[email protected]

Whatsapp:8618018372311

Product Description

The 409L stainless steel has strong resistance to corrosion, high temperature and fatigue, and can realize the life and lightweight of exhaust system components.

With its excellent corrosion resistance, 409L stainless steel is suitable for prolonging the life of automobiles and lightening the weight of automobiles. As an environmentally friendly material for recycling, GM, Ford, Volkswagen, DaimlerChrysler and other major automobile manufacturers adopt 100% stainless steel in their exhaust systems.

409L high temperature resistance, can achieve high efficiency of the engine and exhaust system, and reduce the thickness of the exhaust system, can reduce exhaust emissions.

409L low cost, good flexibility, high rate of finished material, easy to replace, belongs to the environmental protection of new products.


Specification:

Thickness4mm-100mm
Width1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc
Length2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Surface2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc
FinishHot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats,
Blank (Circle), Ring (Flange) etc.


Composition:

GradeCMnSiPSCrTiNiN
00Cr11Ti  0.75 – 0.50≤1.00≤1.00≤0.04≤0.0311110.5~11.7-


(1) When 409L steel crystallizes, the solid-liquid two-phase zone is very small, less than 30℃;

(2) There is almost no γ phase at high temperature.

The above two reasons make equiaxed grains appear in this region instead of columnar grains.

There is no columnar crystal structure on the cross section, but equiaxed crystal with different sizes.

During the casting process, when the billet temperature drops to 1100℃, if the carbon content is high, part of Cr and C will form carbides, resulting in a chromium poor zone around the carbides, and a small amount of δ phase may appear.

At this time, there are two phases with different properties in the steel, or the content of δ phase is between 32% and 60%, which is the plastic zone of the blank.

The carbon content of 409L steel is very low, even if δ phase is present, the amount is very small.

Therefore, there is no significant impact on performance.


409L steel from high temperature to low temperature almost no α→γ phase transformation, so the grain is easy to grow up, there are thick ferrite structure, low strength, in continuous casting, after the slab is cut up, prone to bend phenomenon, affect the normal production.

The main problem during crystallization of 409L steel is the degradation of properties caused by coarse grain size≥192HB


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