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SINO ENGINEERING  GROUP(HK) CO., LIMITED
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Current Postion: Home > Projects&Products > Steel Products
Steel Products

Die Steel

Die Steel
  • ProductsDie Steel

Detailed

l  Product overview

With the rapid growth of die steel processing industry, high quality and low cost of mold manufacturing materials are required. In order to improve the material processing, polishing, corrosion resistance and abrasion resistance performances, and various die steel grades has to be developed to meet the .market demand.

According to the market demand, NISCO has successfully developed the plastic model steel, such as carbon die steel, pre-hardened die steel, mirror steel and corrosion resistant steel and so on based on our long-term studies and experience gained from many years production.

Carbon die steel mainly refers to the medium carbon structural steel and typical steel grades are S45C, S48C, S50C, S55C etc. Carbon die steel is used to manufacture small plastic molds or the molds (die holder) with less accuracy.

Pre-hardened die steel mainly refers to medium carbon alloy steel of high hardenability. The typical steel grades are P20 series, 718 series, 2311 and economic NSM30, etc. Delivery status of the steel plates is pre-hardened so that the plates can be used directly without heat treatment again. Pre-hardened die steel is applicable for manufacturing the molds with big batch, big size, complicated shape and high accuracy.

Age hardening die steel was developed by adding elements such as Ni, V and normalizing and tempering treatment based on P20, which fulfills the requirement of high hardness (around 40 HRC). The typical steel grades are NSM ? HPM. Age hardening die steel is suitable for manufacturing the molds with complicated shape, high accuracy and high polishing performance.

l  Steel Grade and Size

The typical steel grade:
NSM30, NSM300, P20 series, 718 series, 2311 and NSM - HPM

Size:
10-120mm×1600-2600mm×6000-18000mm

Delivery status:
normalizing + tempering, hot rolling + tempering

Execution standard:
Technical agreement or enterprise standard Q / 3201 NG214-2012.

1. Domestic and overseas steel grade

 

NISCO standard
NISCO

Chinese standard
GB/YB

American standard
AISI

German standard
DIN

Swedish Standard
ASSAB

Austrian standard
BOHLER

 

 

 

 

 

 

NSM30

-

-

1.2311

-

-

P20 series

3Cr2Mo

P20

1.2311

618

M202

718 series

3Cr2NiMnMo

P20+Ni

1.2738

718

M202

NSM-HPM

-

P21

-

-

-

 

 

 

 

 

 

 

 

 

 

 

2. Chemical composition and properties
Chemical composition /wt%

 

Chemical composition

C

Si

Mn

P

S

Cr

Mo

Ni

V

B

maximum

Steel Grade

NSM30

0.41

0.6

1.5

0.02

0.01

1.9

0.4

/

/

*)

2311

0.4

0.4

1.5

0.018

0.01

2

0.4

/

/

/

P20 series

0.4

0.5

1.4

0.018

0.008

2

0.5

/

*)

/

718 series

0.42

0.4

1.6

0.018

0.008

2

0.5

1.2

/

/

NSM-HPM

0.38

1.2

1.6

0.02

0.008

2

0.9

1.2

*)

/

*) means “depend on plate size and hardness”

Property indexes
 

 

/

Quality grade

NSM30
HBW

NSM-HPM
HBW

2311
HBW

P20
HBW

718
HBW

Surface hardness

general

270-330

360-430

280-330

280-340

290-340

H

/

/

/

315-365

315-370

l  Application achievements

 

Item

Main Steel grade

Sales area

1

NSM30P20718 etc.

East China

2

2311718P20HNSM-HPM etc.

Guangdong

l  After-sales service

Continual improvement on technology and quality is our constant pursuit. Providing customers with high quality products is our eternal goal, and offering efficient and convenient technical support and after-sales service is our unchanging promise. the reply will be given within 24 hours and service technicians will be on site within 72 hours upon receiving the quality claims from the customers.