202 201 301 420 430 2b Stainless Steel Coil Roll Cold Rolled

Place of Origin Jiangsu, China
Certification ISO9001, CE
Minimum Order Quantity 1 pcs
Delivery Time 7~10working days
Payment Terms L/C, T/T
Supply Ability 5000 Ton/Tons per Month
Product Details
Product Name Stainless Steel Coils/Strips Type Cold Rolled,Hot Rolled
Surface No.1,2D,2B,BA,No.4,8k,Tempered Thickness 0.4mm~6mm
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202 stainless steel coil

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Product Description

Grade 420 Stainless Steel Coil/Strips

400 SERIES STAINLESS STEEL

 

The 400 series group of stainless steels typically have an 11% chromium and 1% manganese increase, above the 300 series group. This stainless steel series tends to be susceptible to rust and corrosion under some conditions although heat-treating will harden them. The 400 series of stainless steels have a higher carbon content, giving it a martensitic crystalline structure that provides the end product with high-strength and high-wear resistance. The 400 series steels tend to be used in agricultural equipment, gas turbine exhaust silencers, hardware, motor shafts, and more.

 

Type 420 is a martensitic stainless steel that provides good corrosion resistance similar to 410 plus increased strength and hardness. It is magnetic in both the annealed and hardened conditions. Maximum corrosion resistance is attained only in the fully hardened condition. It is never used in the annealed condition.

 

CHEMICAL COMPOSITION

Element C Mn Cr Ni P S Si
409 0.03% 1.00% 10.5~11.7% 0.50% 0.04% 0.02% 1.00%
410 0.08~0.15% 1.00% 11.5~13.5% 0.75% 0.04% 0.03% 1.00%
420 0.15% 1.00% 12.0~14.0% - 0.04% 0.03% 1.00%
430 0.12% 1.00% 16.0~18.0% 0.75% 0.04% 0.03% 1.00%

 

MECHANICAL PROPERTIES

Grade

Tensile Strength

(MPa)

Min

Yield Strength

0.2% proof (MPa)

Min

Elongation

(%in 50mm)

Min

Brinell(HB)

Max

420(Annealed)

 

655

 

345 25 241

 

420 COMMON APPLICATIONS

The typical applications of grade 420 stainless steels are listed below:

  • Shear blades
  • Needle valves
  • Surgical equipment
  • Cutlery