420 Stainless Steel Plate

420 Stainless Steel Plate

420 stainless steel is a high-carbon stainless steel, mainly composed of chromium, carbon and molybdenum, with good corrosion resistance and strength.

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420 Stainless Steel Plate Description

420 is a hardenable martensitic stainless steel that contains at least 12% chromium, just enough to provide corrosion resistance. It has good ductility in the annealed condition, but can be hardened to a minimum Rockwell hardness of 50 HRC, which is the highest hardness in the 12% chromium scale. Due to its hardening properties, 420 are not often welded, although this is possible. Martensitic stainless steel is designed for high hardness, and sometimes other properties will be affected to a certain extent. The corrosion resistance is lower than that of ordinary austenite grades, and its effective operating range is limited by its ductility loss at sub-zero temperatures and strength loss due to excessive tempering at high temperatures. The best corrosion resistance is obtained when the metal is hardened and subjected to surface grinding or polishing.


Product Parameters

Product Name

420 Stainless Steel Plate

Type

Plate

Thickness

0.3mm-200mm

Length

2000mm, 2438mm, 3000mm, 5800mm, 6000mm, 12000mm, etc.

Width

40mm-600mm, 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc.

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

S

P

≤ 0.15

≤1.0

≤1.0

12.0~14.0

≤ 0.03

≤ 0.04

 

Mechanical Properties

Tensile Strength Kb (MPa)

Yield Strength σ0.2 (MPa)

Elongation D5 (%)

Hardness

≥634

≥440

≥20

Annealing≤ 223HB; quenching and tempering ≥ 192HB

 

Physical Performance

Density(g/cm³)

Modulus of Elasticity(Gpa)

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

Coefficient of Thermal Conductivity(W/m*K)

Resistivity(ΜΩ. cm)

7.74

200

10.2

24.9

55

 

Surface Selection


What is your working time?

In general, our online service time is Beijing time: 8:00-22:00, after 22:00, we will reply to your inquiry during the next working day.

How to pack the products?

The inner layer has a waterproof paper outer layer with iron packaging and is fixed with a fumigation wooden pallet. It can effectively protect products from corrosion during ocean transportation.

Can you send samples?

Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.

What product information do I need to provide?

You need to provide the grade, width, thickness, coating and the number of tons you need to purchase.

What are the shipping ports?

Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can choose other ports according to your needs.

About product prices?

Prices vary from period to period due to cyclical changes in the price of raw materials.

What are the certifications for your products?

We have ISO 9001, SGS, EWC and other certifications.

How long does your delivery time take?

In general, our delivery time is within 30-45 days, and may be delayed if the demand is extremely large or special circumstances occur.

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