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D2 ( 1.2379 ) High Carbon Alloy Tool Steel Sheet / Plate for knife Blades

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D2 ( 1.2379 ) High Carbon Alloy Tool Steel Sheet / Plate for knife Blades

China D2 ( 1.2379 ) High Carbon Alloy Tool Steel Sheet / Plate for knife Blades supplier

Large Image :  D2 ( 1.2379 ) High Carbon Alloy Tool Steel Sheet / Plate for knife Blades

Product Details:

Place of Origin: China
Brand Name: Daway
Certification: SGS
Model Number: D2, 1.2379, SKD11

Payment & Shipping Terms:

Minimum Order Quantity: 1 ton
Price: negotiable
Packaging Details: seaworthy
Delivery Time: 15 days after receipt 30% of value
Payment Terms: L/C, T/T
Supply Ability: 200 tons per month
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Detailed Product Description
Cold Work Tool Steel Grade: D2, 1.2379, SKD11 Material: D2 ( 1.2379 ) High Carbon Alloy Tool Steel Sheet / Plate For Knife Blades
Size: 1.5~20.0x850mm Delivery State: Annealed

D2 ( 1.2379 ) High Carbon Alloy Tool Steel Sheet / Plate for knife Blades

 

This air-hardening, cold work formulation features very high concentrations of carbon and

chromium (1.40 – 1.60% and 11.00 – 13.00%, respectively).

It’s highly wear-resistant and the high concentration of chromium imparts mild corrosion resistance.

 

APPLICATIONS: Rolls, punches, dies for blanking, forming, trimming, and thread rolling, shear knives,

food-processing knives, and gauges.

 

Material No. D2 Tool Steel - High-Carbon, High-Chromium, Cold-Work Steel

AISI/ASTM EN/DIN JIS
D2 1.2379, X155CrVMo12-1 SKD11

 

Chemical composition ( weight % )

Grade C Si Mn Cr Mo V
D2 1.50 0.30 0.30 12.00 0.75 0.90

 

Product forms

All tool steel D2 is sold as annealed condition, Size range

Thickness Width
1.5~20.0 850mm max.

 

HEAT TREATING INSTRUCTIONS
HARDENING
Critical Temperature:
Ac1: 1449°F (788°C) Ac3: 1553°F (845°C)
Ar1: 1418°F (769°C) Ar3: 1373°F (744°C)
Preheating: To minimize distortion and stresses in large or complex tools use a double preheat.
Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1150-1250°F (621-677°C) equalize,
then heat to 1400-1450°F (760-788°C). For normal tools, use only the second temperature range as a single preheating treatment.
 
Austenitizing (High Heat): Heat slowly from the preheat. Furnace or Salt: 1850-1875°F (1010-1024°C).
 
Quenching: Air or pressurized gas to 150-125ºF (66-51ºC).
Sizes up to 4 inches (101.6 mm) in thickness will through harden when air cooled from 1575ºF (857ºC).
Sizes up to 6 inches (152.4 mm) in thickness will through harden when air cooled from 1625ºF (885ºC).
 
Tempering: Temper immediately after quenching. Hold at temperature for 1 hour per inch (25.4 mm) of thickness,
2 hours minimum, then air cool to ambient temperature.
The typical tempering range is 350 to 400ºF (177 to 204ºC).
 
For maximum wear resistance, temper between 300-350°F (149-177°C) for a hardness of 62-64 HRC.
For the optimal balance between wear resistance and toughness, temper between 500-550°F (260-288°C).
This will produce 58-60 HRC.
 
For maximum toughness, double temper, 2 hours plus 2 hours, at temperatures above 950°F (510°C).
This will produce hardness of less than 58 HRC.
 
To minimize internal stresses in cross sections greater than 6 inches (152.4 mm) and to improve stability
in tools that will be EDM'd after heat treatment, soaking times of 4 to 6 hours at the tempering temperature
below 950°F (510°C) are strongly recommended.
 
Annealing: Annealing must be performed after hot working and before re-hardening.
Heat at a rate not exceeding 400°F per hour (222°C per hour) to 1600-1650°F (871-899°C),
and hold at temperature for 1 hour per inch (25.4mm) of maximum thickness; 2 hours minimum.
Then cool slowly with the furnace at a rate not exceeding 50°F per hour (28°C per hour) to 1000°F (538°C).
Continue cooling to ambient temperature in the furnace or in air.
The resultant hardness should be a maximum of 255 HBW.
 
Please welcome to contact our sales.
Tel: 0086 510 81812873
Fax: 0086 510 81812872
Email: export@guanglusteel.com
 
D2 ( 1.2379 ) High Carbon Alloy Tool Steel Sheet / Plate for knife Blades

Contact Details
Wuxi Guanglu Special Steel Co., Ltd

Contact Person: Paul Lu

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