Round: Dia. 20-1000 mm
Flat: T. 10-120 mm x W. 60-810 mm
Cold drawn: 10-100 mm
Peeled: 30-160 mm
Grind: 10-600 mm
Turned: 130-1600 mm
Hot rolled: 20-280mm
Hot forged: 130-1000 mm
Block: T. 80-1200 mm x W. 100-1600 mm
In standard export packing and seaworthy material with rectangular shape bundle, covered with tarpaulin, in ontainers or in bulk
Shanghai Port, China
DIN 1.2379 AISI D2 JIS SKD11 Cold-Work Tool Steel Bar / Rod
AISI D2 tool steel is a high carbon (1.4-1.6% C), high chromium Cold tool steel (11-13% chrome), and with Very high wear resisting properties, heat treatment can be reached to 60-62 HRc. D2 steel have very wear resistant property but not as tough as lower alloy steel.
Cold work D2 tool steel hardens in air with a low order of movement and offers a measure of corrosion resistance while polished. The high chromium percentage gives it nice corrosion-resisting properties in the hardened condition and low temperature.
D2’s mechanical properties are very sensitive to heat treatment.
D2 tool steel is provided in diameter round, flat bar, and square block.
Tool steel, Mold Steel
AISI, DIN, JIS, GB
∅20 - 1000 mm
Black, Peeled, Turned, Grinded
Hot rolled, Forged
100% UT Passed
AISI / SAE
Chemical Composition (%)
-EAF+(ESR) or EAF+LF+VD+(ESR)
-HOT rolled or Forged, Annealed
-Black surface or Machined surface (Peeled, Turned, Grinded)
-UT 100% passed
-Cutting service provided
-Third Party inspection is acceptable (SGS, BV etc.)
AISI D2 is used to cold work tools applications, it have well wear resistance, normal applications such as Blanking die and rolling die.
D2-Tool steels Typical applications as below:
Hunching die, molding die, stamping die, blades, heading tools, long punch, forming roller, grinding roll, master the tools, ball, punch, perplexing extrusion die, drawing die, compound die, thread rolling die, Shear Blades, Burnishing Tools, Knurls, and other wear parts.
AISI D2 Steel Forged – Grade ASTM A681
For forging the AISI D2 tool steel should be heat to 700°C (1292°F) slowly and uniformly. Then heating to 900-1040°C (1652-1904°F) rapidly and Soak thoroughly. After finished forging, slowly cool down in furnace. as necessary, stopping work when the temperature drops below 1700°F(926°C). The delivery state of AISI D2 steel should be annealed after forging always.
Heat Treatment for AISI D2 Tool Steel AISI D2 steel alloy should be pre-heated very slowly to 815℃ (1500°F) and then temperature can be increased to 1010°C (1850°F). then keep at 1010°C (1850°F) for 20 to 45 minutes and air cool quenched.
Annealing of AISI D2 Annealing for D2 tool steel material, that should be heat to 871°C to 898°C (1600 to 1650°F), then by slowly cooling at 4.4°C (40°F) per hour or less in heat treatment furnace. Suitable precautions should be taken to prevent excessive carburization or decarburization.
Stress Relieving AISI D2 Steel Material When need to relieve the strains of machine, slowly heating D2 steel grade to 566°C to 676°C (1050°-1250°F), soak equalize, and then cool in room (Air Strain Relieving).
Hardening AISI D2 Tool Steel Slowly pre-heat to 732°C to 787°C (1350°F-1450°F) and keep on the temperature until grade steel D2 material is heated thoroughly. Then heat to 983°C to 1010°C (1800°-1850°F). Hold the D2 tool steel block at the hardening temperature until completely and uniformly heated.
Quenching of D2 ASTM D2 is an air Quenching steel. for avoid scaling and prevent decarburization of the workpiece surface, the vacuum furnaces or controlled atmosphere is recommended strongly. for avoid scaling and prevent decarburization of the workpiece surface, the vacuum furnaces or controlled atmosphere is recommended strongly. If the furnaces are not available, packing harden, salt baths or packing the workpiece to stainless steel foil will provide some degree of surface protection in the hardening process. The Work-Parts should be cool to 65°C or room temperature, and then temper immediately.
Tempering of AISI D2 Steel
The tempering temperature of material D2 steel varies according to the required hardness. D2 steel can exercise 204 degrees C Rockwell C a hardness of 61 and 537 degrees C (1000 degrees F) Rockwell C hardness 54.
What we can offer?
-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.
-Machining and heat treatment are available.
-Also, we advise you in choosing the right materials.
Ø Solid round bar
Ø Flat bar
Ø Square bar
Ø Hexagon bar
Ø Wire rod
Our Main Products
1) Available Size: -Round: Dia. 20-1000 mm -Flat: T. 10-120 mm x W. 60-810 mm -Block: T. 80-1200 mm x W. 100-1600 mm 2) Delivery condition: -Smelting: EAF+LF+VD (+ESR) -Making: Hot rolled, Cold rolled, Forged, Cold Drawn -Cold drawn: 10-100 mm -Peeled: 30-160 mm -Grind: 10-600 mm -Turned: 130-1600 mm -Hot rolled: 20-280mm -Hot forged: 130-1000mm
We are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.
In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china.
What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!
Q: Are you a manufacturer or merely a trader? A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price. Q: How do you guarantee the quality of your product? A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival. Q: Delivery time? A: We have ready stock for most of material grades in our warehouse. If the material doesn't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order. Q: What is the payment term? A: T/T or L/C. Q: Can we visit your company and factory? A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.