· 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 Details | according to the client |
Delivery Time | 45days after contract |
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
FAX：0714-6519746
Email：info@hubeikaixin.com
Add：No.37 Huahu Ave Huahu Street.Huangshi City Hubei
Code：435000
web:www.kxdiesteel.com
