The solid and liquid two-phase region of 409L steel is very small, less than 30°C
There is almost no γ phase at high temperature, resulting in fine equiaxed crystal formation
Unique crystallization behavior prevents columnar crystal formation
Minimal δ phase content due to low carbon content
Coarse ferrite structure development requires careful processing control

Available Stainless Steel Products

Grade	Available Options
Grades	201, 301, 304, 304L, 309S, 310S, 316L, 317L, 321, 409L, 410, 410S, 430, 439, 444, 904L, 2205, 2507, etc.
Finish	NO.1, 2B, 2D, BA, NO.4, NO.8, 8K, mirror, hair line, sand blast, brush, etching, checkered, embossed, etc.
Thickness	0.2 - 200 mm
Width	4 - 2000 mm
Length	500 - 12000 mm / coil

Surface Finishes

Surface	Feature	Application
NO.1	Silver white matt surface, hot rolled and annealed	Applications not requiring surface gloss
NO.2D	Silver white, heat treated and pickled after cold rolling	General materials and deep drawing applications
NO.2B	Gloss stronger than NO.2D, lightly cold rolled	General materials
BA	Bright as a mirror, high surface reflectivity	Building materials, kitchen utensils
NO.3	Rough grinding with 100-200# grinding belt	Building materials, kitchen utensils
NO.4	Intermediate grinding with 150-180# abrasive belt	Building materials, kitchen utensils
HL	Hairline grinding with appropriate abrasive material	Buildings, construction materials
NO.8	Mirror grinding with polishing wheel	Reflector, decorative applications

Product Images

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Products

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Copper Material

Aluminum Material

409L Cold Rolled Stainless Steel Coil with Bright Surface for Automotive Exhaust Applications

MOQ:	50
Price:	1.25

Detail Information

Product Description

Detail Information

Certification

AISI, ASTM

Model NO.:

409L

Shape:

Flat

Technique:

Cold Rolled

Surface Treatment:

Bright

Thickness Range:

0.2mm - 8.0mm

Width Range:

600mm - 2000mm

Max Coil Weight:

25MT

Coil ID:

508mm,610mm

Finish:

2B,2D

Tensile Strength:

> 380 Mpa

Yield Strength:

>205 Mpa

Elongation:

> 20%

Hardness:

< HRB88

Bending Angle:

180 Degree

Carbon Content:

≤0.03

Minimum Order Quantity:

Price:

1.25

Highlight

Cold Rolled Stainless Steel Coil

Bright Surface Stainless Steel Strip

Automotive Exhaust 409L Stainless Steel

Product Description

409L Stainless Steel Coil Strip - Cold Rolled SUH409L Stainless Steel Coils

Product Specifications

Thickness: 0.2mm - 8.0mm

Width: 600mm - 2000mm

Max Coil Weight: 25MT

Coil ID: 508mm, 610mm

Finish: 2B, 2D

409 Stainless Steel Specifications

International Grade Equivalents

1.4512 S40930 0Cr11Ti

Chemical Composition

Element	Content (%)
C	≤0.08
Si	≤1.0
Mn	≤1.0
S	≤0.03
P	≤0.045
Cr	10.5~11.7
Ni	0.5 Max
Ti	6xC - 0.75

Mechanical Properties

Property	Value
Tensile Strength	> 380 MPa
Yield Strength	> 205 MPa
Elongation	> 20%
Hardness	< HRB88
Bending Angle	180 degree

409L Stainless Steel Specifications

International Grade Equivalents

SUH409L S40903 00Cr11Ti 022Cr11Ti

Chemical Composition

Element	Content (%)
C	≤0.03
Si	≤1.0
Mn	≤1.0
S	≤0.03
P	≤0.045
Cr	10.5~11.7
Ni	0.5 Max
Ti	6xC - 0.75

Mechanical Properties

Property	Value
Tensile Strength	> 380 MPa
Yield Strength	> 205 MPa
Elongation	> 20%
Hardness	< HRB88
Bending Angle	180 degree

Product Application

The 409L/S40903 stainless steel is primarily used for manufacturing automotive exhaust gas treatment devices.

Crystalline Characteristics

The solid and liquid two-phase region of 409L steel is very small, less than 30°C
There is almost no γ phase at high temperature, resulting in fine equiaxed crystal formation
Unique crystallization behavior prevents columnar crystal formation
Minimal δ phase content due to low carbon content
Coarse ferrite structure development requires careful processing control

Available Stainless Steel Products

Grade	Available Options
Grades	201, 301, 304, 304L, 309S, 310S, 316L, 317L, 321, 409L, 410, 410S, 430, 439, 444, 904L, 2205, 2507, etc.
Finish	NO.1, 2B, 2D, BA, NO.4, NO.8, 8K, mirror, hair line, sand blast, brush, etching, checkered, embossed, etc.
Thickness	0.2 - 200 mm
Width	4 - 2000 mm
Length	500 - 12000 mm / coil

Surface Finishes

Surface	Feature	Application
NO.1	Silver white matt surface, hot rolled and annealed	Applications not requiring surface gloss
NO.2D	Silver white, heat treated and pickled after cold rolling	General materials and deep drawing applications
NO.2B	Gloss stronger than NO.2D, lightly cold rolled	General materials
BA	Bright as a mirror, high surface reflectivity	Building materials, kitchen utensils
NO.3	Rough grinding with 100-200# grinding belt	Building materials, kitchen utensils
NO.4	Intermediate grinding with 150-180# abrasive belt	Building materials, kitchen utensils
HL	Hairline grinding with appropriate abrasive material	Buildings, construction materials
NO.8	Mirror grinding with polishing wheel	Reflector, decorative applications

Product Images

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