China GB Cr12 JIS SKD1 DIN 1.2080 ASTM D3 Forged Cold Work Tool Steel

GB Cr12 JIS SKD1 DIN 1.2080 ASTM D3 Forged Cold Work Tool Steel

1: AISI D3 steel introduction
AISI D3 cold work steel, also know as DIN 1.2080 (Werkstoff) and JIS SKD1, is a 12% chrome alloy steel. D3 cold work steelhas very high wear resistance against abrasive and adhesive wear due to the high volume of hard carbides in the steel matrix, medium toughness, dimensionally stable, high compressive strength, not secondary hardenable. Type AISI D3 cold works tool steel is oil-quenched; though small sections can be gas quenched after austenitization using vacuum. As a result, tools made with type D3 cold work tool steel tend to be brittle during hardening.

2: AISI D3 Steel equivalent
CountryChinaJapanGermanyUSAUKStandardGB/T 1299JIS G4404DIN EN ISO4957ASTM A681BS 4659GradeCr12SKD11.2080/X210Cr12D3
3: AISI D3 steel chemical composition
GradeCMnPSSiCrVTMoD32.002.350.100.600.030.030.100.6011.0013.50. . .1.10. . .1.00. . .. . .1.2080/X210Cr121.902.200.200.60 0.100.6011.0013.00------SKD11.902.200.200.600.030.030.100.6011.0013.00------
4: AISI D3 steel mechanical properties
The mechanical properties mainly include tensile strength, yield strength, elongation, area or reduction, hardness, impact value, non-metalic inclusion etc. Different heat treatment, the mechanical properties will be different, such as normalized, tempered, QT. If you want to know the properties, kindly contact the salesman.
5: AISI D3 steel overviews
SizeRoundDia 6-1200mmPlate/Flat/BlockThickness
6mm-500mmWidth
20mm-1000mmProcessEAF+LF+VD+Forged+Heat treatment(optional)Heat treatmentNormalized ; Annealed ; Quenched ; TemperedSurface conditionBlack; Peeled; Polished; Machined; Grinded; Turned; MilledDelivery conditionForged; Hot rolled; Cold drawnTestTensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. Payment termsT/T;L/C;/Money gram/ PaypalTrade termsFOB; CIF; C&F; etc..PackingStandard Packages, or as Customers RequestDelivery time30-45 daysApplication D3 is suitable for applications such as complex blanking and forming tools for long runs and for hard and abrasive materials.
6: Delivery condition
For hot forged or hot rolled bar, usually the delivery condition is hot forged or rolled, annealed, rough turned.
For hot forged plate, usually the delivery condition is hot forged, annealed, milled surface.
For hot rolled plate, usually the delivery condition is hot rolled, annealed, black surface.
7.Heat treatment
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.
Hunan Qilu Industrial Co., Ltd has the capacity to forge round steel, steel flat, square steel, module, shaft and roller, etc. The main specifications of the products include Φ80-1000mm forging materials and 80-1200mm square billets and which the maximum piece weight can reach 50T.

Hunan Qilu Industrial Co., Ltd were already engaged in exporting steel for 11 years, could supply a great variety of hot forged, hot rolled and cold drawn Steels, including engineering steel, cold work tool steel, hot work tool steel, plastic mold steel, spring steel, high speed steel, stainless steel etc., besides Qilu Industrial also has their own heating treatment shop and machining shop to provide heating and cutting service.
Since 2008 year, Hunan Qilu Industrial has the right to export all FORGED STEEL behalf of Qilu Speical Steel Co.,ltd which is specialized in smelting and forging of special steel since 1965 year, now Qilu special steel is one of the biggest manufacturer of forged product in China.The forged products are used in Automotive, Aerospace, Power Generation, Oil & Gas, Transportation and Industrial. We already set up the warehouse in Wuxi and Dongguan city, more than 20000 tons ex-stock could be supplied with kinds of size.
Qilu Industrial is the professional one-stop steel manufacturer, stockist and exporter in China, our customers spread all over the world, include West Europe, North America, South America, Asia, Middle Asia, Africa, Australia, etc.

The company owns advanced special steel smelting facilities and forging processing equipments, the main steel-making equipment include 2 sets of 50t ultra-high power electric arc furnaces,2 sets of 60t LF refining furnaces,1 set of 60t vacuum degassing refining furnace and 4 sets of 1-20t electroslag re-melting furnaces.
The main forging equipments mainly include:3 sets of 5t electro-hydraulic hammers, 1 set of high-speed forging units of 800t,1600t,2000t and 4500t respectively.

Hunan Qilu Industrial CO., LTD
Web: www.qilucs.com

Tel: 86-731-85185768
Fax: 86-0731-85185771