420 Stainless Steel Plate
420 Stainless Steel Plate

420 Stainless Steel Plate

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.

Classification :

Stainless Steel Plate

WhatsApp : +8613734495092

E-mail : william@sdzenithpanel.com

Related Products
Online Message

PRODUCT DETAILS

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

No

 China Japan USA South Korea Germany India Australia Taiwan, China

 

GB

JIS

ASTM

UNS

KS

DIN

BIS

AS

CNS
Austenitic stainless steel

1

12Cr17Mn6Ni5N

SUS201

201

S20100

STS201

1.4372

10Cr17Mn6Ni4N20

201-2

201

2

12Cr18Mn9Ni5N

SUS202

202

S20200

STS202

1.4373

-

-

202

3

12Cr17Ni7

SUS301

301

S20200

STS301

1.4319

10Cr17Ni7

301

301

4

06Cr19Ni10

SUS304

304

S30400

STS304

1.4301

07Cr18Ni9

304

304

5

022Cr19Ni10

SUS304L

304L

S30403

STS304L

1.4306

02Cr18Ni11

304L

304L

6

06Cr19Ni10N

SUS304N1

304N

S30451

STS304N1

1.4315

-

304N1

304N1

7

06Cr19Ni9NbN

SUS304N2

XM21

S30452

STS304N2

-

-

304N2

304N2

8

022Cr19Ni10N

SUS304LN

304LN

S30453

STS304LN

-

-

304LN

304LN

9

10Cr18Ni12

SUS305

305

S30500

STS305

1.4303

-

305

305

10

06Cr23Ni13

SUS309S

309S

S30908

STS309S

1.4833

-

309S

309S

11

06Cr25Ni20

SUS310S

310S

S31008

STS310S

1.4845

-

310S

310S

12

06Cr17Ni12Mo2

SUS316

316

S31600

STS316

1.4401

04Cr17Ni12Mo2

316

316

13

06Cr17Ni12Mo2Ti

SUS316Ti

316Ti

S31635

-

1.4571

04Cr17Ni12MoTi20

316Ti

316Ti

14

022Cr17Ni12Mo2

SUS316L

316L

S31603

STS316L

1.4404

~02Cr17Ni12Mo2

316L

316L

15

06Cr17Ni12Mo2N

SUS316N

316N

S31651

STS316N

-

-

316N

316N

16

022Cr17Ni13Mo2N

SUS316LN

316LN

S31653

STS316LN

1.4429

-

316LN

316LN

17

06Cr18Ni12Mo2Cu2

SUS316J1

-

-

STS316J1

-

-

316J1

316J1

18

022Cr18Ni14Mo2Cu2

SUS316J1L

-

-

STS316J1L

-

-

-

316J1L

19

06Cr19Ni13Mo3

SUS317

317

S31700

STS317

-

-

317

317

20

022Cr19Ni13Mo3

SUS317L

317L

S31703

STS317L

1.4438

-

317L

317L

21

06Cr18Ni11Ti S

SUS321

321

S32100

STS321

1.4541

04Cr18Ni10Ti20

321

321

22

06Cr18Ni11Nb

SUS347

347

S34700

STS347

1.4550

04Cr18Ni10Nb40

347

347
Duplex stainless steel

1

-

SUS329J1

329

S32900

STS329J1

1.4477

-

329J1

-

2

022Cr23Ni5Mo3N

-

S32205

F60

-

1.4462

-

2205

2205

3

022Cr25Ni7Mo4N

-

S32750

F53

-

1.4410

-

2507

2507
Ferritic stainless steel

1

06Crl3Al

SUS405

405

S40500

STS405

1.4002

04Cr13

405

405

2

022Cr11Ti

SUH409

409

S40900

STS409

1.4512

-

409L

409L

3

022Cr12

SUS410L

-

-

STS410L

-

-

410L

410L

4

10Cr17

SUS430

430

S43000

STS430

1.4016

05Cr17

430

430

5

10Cr17Mo

SUS434

434

S43400

STS434

1.4113

-

434

434

6

022Cr18NbTi

-

-

S43940

-

1.4509

-

439

439

7

019Cr19Mo2NbTi

SUS444

444

S44400

STS444

1.4521

-

444

444
Martensitic stainless steel

1

12Cr12

SUS403

403

S40300

STS403

-

-

403

403

2

12Cr13

SUS410

410

S41000

STS410

1.4006

12Cr13

410

410

3

20Cr13

SUS420J1

410

S42000

STS420J1

1.4021

20Cr13

420

420J1

4

30Cr13

SUS420J2

-

-

STS420J2

1.4028

30 Cr13

420J2

420J2

5

68Cr17

SUS440A

440A

S44002

STS440A

-

-

440A

440A

 

Packing and delivery

The company always adheres to the principle of quality first and service first, providing customers with high-quality steel. The company has sufficient resources and faces customers with prices that are better than the market. It develops and progresses together with customers and builds a mutually beneficial cooperation platform.

QUALITY INSPECTION

Product complies with national standards such as GB, American standards such as ASTM, Japanese standards such as JIS, and European standards such as EN. It can provide material certification, SGS/CE certification, and third-party testing reports to meet engineering and procurement standards in different countries.

FACTORY WORKSHOP

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

Factory workshop

APPLICATION FIELD

Highway Guardrail

Highway Guardrail

Offshore Wind Power

Offshore Wind Power

Home Appliance Industry

Home Appliance Industry

Light Steel Villa

Light Steel Villa

New Energy Vehicles

New Energy Vehicles

New Energy

New Energy

FAQ

Q: What specifications of galvanized and color-coated products do you mainly deal with?

Q: What specifications of galvanized and color-coated products do you mainly deal with?

A: Our main products include hot-dip galvanized coils, galvanized sheets, and color-coated coils, which can be produced according to customized specifications by customers.
A: Our main products include hot-dip galvanized coils, galvanized sheets, and color-coated coils, which can be produced according to customized specifications by customers.
Q:What international standards does the product comply with? Can it obtain certification?

Q:What international standards does the product comply with? Can it obtain certification?

A:We adhere to multiple international standards such as GB, EN, ASTM, and JIS. We can provide a full set of customs clearance documents including SGS, CE, material specification sheet, and factory quality inspection report.
A:We adhere to multiple international standards such as GB, EN, ASTM, and JIS. We can provide a full set of customs clearance documents including SGS, CE, material specification sheet, and factory quality inspection report.
Q: What is the minimum order quantity (MOQ) and what is the delivery lead time?

Q: What is the minimum order quantity (MOQ) and what is the delivery lead time?

A: The minimum order quantity is one standard container. For in-stock items, shipment can be made within 7 days. For customized items, the production cycle is 15-25 days.
A: The minimum order quantity is one standard container. For in-stock items, shipment can be made within 7 days. For customized items, the production cycle is 15-25 days.
Q: What are the payment methods?

Q: What are the payment methods?

A: We support T/T prepayment and can negotiate flexible payment terms.
A: We support T/T prepayment and can negotiate flexible payment terms.
Q: How is packaging and protection for sea transportation handled?

Q: How is packaging and protection for sea transportation handled?

A: Standard export waterproof and rustproof packaging, including wrapping film, protective corners, and moisture-proof paper, suitable for ocean shipping, pressure resistance, rain protection, and corrosion resistance.
A: Standard export waterproof and rustproof packaging, including wrapping film, protective corners, and moisture-proof paper, suitable for ocean shipping, pressure resistance, rain protection, and corrosion resistance.
Q: How to handle after-sales quality issues?

Q: How to handle after-sales quality issues?

A: If there are non-human quality defects upon arrival, with actual measurement evidence, we support returns, exchanges, compensation, or replenishment, with full after-sales follow-up.
A: If there are non-human quality defects upon arrival, with actual measurement evidence, we support returns, exchanges, compensation, or replenishment, with full after-sales follow-up.

Stainless Steel Plate

RELATED PRODUCTS

GET A FREE QUOTE

Submit Message

Copyright 2026 : Shandong Zenith Panel Co.,Ltd. Powered by：CEglobal  SEO

%E7%AC%AC%E4%B8%80%EF%BC%8C%E6%9C%80%EF%BC%8C%E4%BC%98%E7%A7%80%EF%BC%8C%E5%A2%9E%E5%BC%BA%EF%BC%8C%E4%B8%80%E6%B5%81%EF%BC%8C%E5%8D%93%E8%B6%8A%EF%BC%8C%E9%A2%86%E5%85%88%EF%BC%8C%E5%85%88%E8%BF%9B%EF%BC%8C%E5%BC%95%E9%A2%86

Sorry，当前栏目暂无内容!

您可以查看其他栏目或返回 首页

Sorry，The current column has no content!

You can view other columns or return Home

Apply For Discount ！

24 Hours Online Service

Provide You With Free Industry Solutions

Quality Assurance

Submit
%{tishi_zhanwei}%