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409 Stainless Steel Coil

Type 409 (UNS S40900) is a ferritic rolled coil stainless steel that has a good combination of heat resistance and corrosion resistance. This alloy also achieves good ductility and is used in some deep drawing applications. 409 stainless steel rolled coil is used in several applications, and is particularly prevalent in the automotive industry.

Product Details

409 Stainless Steel Coil Description

The chemical composition of 409 stainless steel coil sets it apart from other types of stainless steel. It is mainly composed of iron, with large amounts of chromium and small amounts of carbon, manganese, silicon and nitrogen. Iron is the primary element of 409 stainless steel, providing its strength and stability. Chromium gives the alloy corrosion resistance and helps form a protective oxide layer on the surface while carbon helps increase the material's hardness and wear resistance. Manganese acts as a stabilizer to prevent excessive grain growth during heat treatment. Silicon enhances oxidation resistance while minimizing scaling at high temperatures. Nitrogen improves mechanical properties such as tensile strength and yield strength. This unique combination of elements gives 409 stainless steel excellent thermal expansion capabilities, making it suitable for high-temperature applications without compromising its structural integrity or dimensional stability.

Product parameters

Product Name

409 Stainless Steel Coil

Type

Steel Coil

Thickness

2.5mm-10.0mm

Length

2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc.

Width

610mm-2000mm

Standard

ASTM, AISI, JIS, GB, DIN, EN, etc.

Surface

BA, 2B, NO.1, NO.4, 4K, HL, 8K, etc.

Scope of Application

Widely used in high temperature and electrical industry, medical equipment construction, chemical, food industry, agriculture and ship parts, food and beverage packaging,

Kitchen supplies, trains, airplanes, conveyor belts, vehicles, bolts, nuts, springs and screens, etc.

Certificate

ISO, SGS, BV, etc.

Production Technology

Hot Rolling, Cold Rolling

Edge Processing

Edging, Trimming

 

Chemical Composition

C

Si

Mn

Cr

Ni

S

P

≤ 0.08

≤1.0

≤1.0

10.5~11.75

≤ 0.5

≤ 0.045

≤ 0.045

 

Mechanical Properties

Tensile Strength Kb (MPa)

Yield Strength σ0.2 (MPa)

Elongation D5 (%)

Hardness

≥360

≥175

≥25

≤ 162HBW

 

Physical Performance

Density(g/cm³)

Modulus of Elasticity(Gpa)

Coefficient of Thermal Expansion(10-6/°C)

Coefficient of Thermal Conductivity(W/m*K)

Resistivity(NΩ.m)

7.80

200

11.0

25.8

600

 

Surface Selection

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Why Choose Us

Behind the growth and success of Kuaima Steel is years of hard work and dedication in the steel industry and meeting customers' needs on time. Advanced technology, standard products, certified quality standards and the bestcustomer service make Kuiama Steel a true leader in the global market.

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Service field

Every industry has its unique set of material specifications and needs. That’s why you can count on the exceptional experience and industry knowledge of the professionals at Kuaima Steel - Meeting the Exact Needs of Every Industry That Uses steel.

  • Machinery manufacturing industry
  • Power Ceneration
  • Oil & Gas
  • Manufacturing
  • Construction
  • Ship building
  • Automobile manufacturing
  • Pipe Fabrication
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