2550 High Life Hot Work Die Steel GR Round Steel

2550 High Life Hot Work Die Steel GR Round Steel


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Product Details

Quick Details

· Steel Grade: SKT4/2550/1.2713/L6

· Standard: AISI, ASTM, BS, DIN, GB, JIS

· Dimensions: dia:50-500mm

· Place of Origin: Hubei, China (Mainland)

· Brand Name: KAIXIN

· Model Number: skt4

· Technique: Forged

· Application: Die Steel Bar

· Alloy Or Not: Is Alloy

· Special Use: Mold Steel

· Type: Alloy Steel Bar

· Place Of Origin: China mainland

· Technology: EF/ESR/EAF+VD+LF

· Delivery state: Annealed/Ingot/Processing

· Surface treatment:Black/machined/turned/polished

· Diameter: 50-500mm

· Length: 2000mm-5800mm

 

Packaging & Delivery

Packaging Details

according to the client

Delivery Time

45days after contract

Specifications

1.dia:50-500mm 
2.45days(one container) 
3.100%UT 
4.100% original 
5.International quality 

1.2713 / SKT4 / 6F2/ 1.2714  steel round bar  

 

Comparable Standards:                                                                                                      

AISI/SAE

DIN

W.Nr.

AFNOR

JIS

BS

SIAU

GB,YB

6F2

56NiCrMoV7

1.2713

1.2714

-

SKD4

-

-

SCrNiMo

 

 Chemical Analysis (%):                                                                                                         

C

Mn

Si

Cr

V

Mo

P

S

0.50-0.60

0.65-0.95

0.10-0.40

1.00-1.20

0.07-0.12

0.45-0.55

≤0.03

≤0.03

  

Isothermal annealing:

 

-   Heat to 800°Cand hold at temperature for 1/2 h to 1 h;

 

-   Furnace cooling to 670°Cand hold at temperature for at least 10 hours;

 

-   Cool by 10°C/h to 630°C;

 

-   Cooling in air.

 

Maximum hardness:≤240 HB

 

Stress relieving:

 

To be carried out after maching before the final heat treatment.

 

-   Heat to 600-650°C, hold for 4-6 hours;

 

-   Cooling in furnace to 300-350°C;

 

-   Cooling in air

 

Hardening:

 

-   Initial preheating to 350-450°C;

 

-   Second preheating to 650-750°C;

 

-   Heat to hardening temperature 860-890°Cand hold at temperature;

 

-   Cooling in hot oil (40-60°C); oil quenched hardness: 54-59HRC;

 

Tempering:

 

Tempering must be carried out within one hour from hardening(warm part) in the range 550-630°Cfor 4-6 hours according to hardness required, the dimensions of the parts and operating conditions.

 

Specification:

 

Steel plate : thickness : 20-400mm  width : 80-1000mm  length: 2000-5800mm

 

Steel round bar: diameter: 50-500mm    length :  2000-5800mm

 

Surface treatment :

 

Round bar  Black /Grinding / Polished / Peeled / Turned

 

Steel plate :   Black / Milling / Machined

 

Characteristic:

 

1.Traditional hot forging die

 

2.Good strength and good quenching

 

3.High abrasion resistance

 

Hubei Kaixin Supply Chain Management Co., Ltd.

TEL +8618272169977 ; 0714-6510168

FAX0714-6519746

Emailinfo@hubeikaixin.com

AddNo.37 Huahu Ave Huahu Street.Huangshi City Hubei

Code435000

web:www.kxdiesteel.com 


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