GB Cr12MoV Tool Steel, Economic Grade of D2 and SKD11
Cr12MoV is widely used in China for making High-duty cutting tools (dies and punches), blanking and punching tools. It is the economic grade of Compared with D2, 1.2379 and SKD11, with the lower content of Mo and V.
Equivalence
|
AISI / SAE |
DIN / W.Nr |
JIS |
GB |
|
D2 |
1.2379 |
SKD11 |
Cr12MoV |
Chemical Composition (%)
|
Steel Grade |
C |
Si |
Mn |
P |
S |
Cr |
Mo |
V |
|
Cr12MoV |
1.45
1.70 |
≤
0.40 |
≤
0.40 |
≤
0.030 |
≤
0.030 |
11.00
12.50 |
0.40
0.60 |
0.15
0.30 |
|
1.2379 |
1.45
1.60 |
0.10
0.60 |
0.20
0.60 |
≤
0.030 |
≤
0.030 |
11.00
13.00 |
0.70
1.00 |
0.70
1.00 |
|
D2 |
1.40
1.60 |
0.10
0.60 |
0.20
0.60 |
≤
0.030 |
≤
0.030 |
11.00
13.00 |
0.70
1.20 |
0.50
1.10 |
|
SKD11 |
1.40
1.60 |
≤
0.40 |
≤
0.60 |
≤
0.030 |
≤
0.030 |
11.00
13.00 |
0.80
1.20 |
0.20
0.50 |
Dimensions
|
Shape |
Thick / Dia. (mm) |
Width (mm) |
|
Round |
8-600 |
/ |
|
Flat |
6-200 |
20-900 |
|
Block |
150-500 |
200-1000 |
Delivery Condition
EAF+LF+VD, Hot rolled or Forged, Annealed, Hardness≤250HB, Black surface or Machined surface, UT 100% SEP1921 Class 3 D/d passed
Characteristics
1. A kind of high alloyed CrMoV steel for cutting tool and cold work tool steel.
2. Quite good hardenability and wearing resistance, and small distortion after quenching.
3. Not good impact toughness, be liable to fracture and form inhomogeneous eutectic carbides.
Applications
High-duty cutting tools (dies and punches), blanking and punching tools, wood working tools, shear blades for cutting light-gauge material, thread rolling tools, tools for drawing, deep drawing and cold extrusion, pressing tools for the ceramics and pharmaceutical industries, cold rools (working rolls) for multiple-roll stands, measuring instruments and gauges, small moulds for the plastics industry where excellent wear resistance is required.
Forging Technique
|
Heat
Temperature |
Start Forging
Temperature |
Finish Forging
Temperature |
Cooling Method |
|
1120-1140 °C |
1080-1100 °C |
>=850 °C |
Slow Cooling |
Heat Treatment
Annealing
800 to 850°C
Slow controlled cooling in furnace at a rate of 10 to 20°C/hr down to approx. 600°C, further cooling in air. Hardness after annealing: max. 250 HB.
Stress relieving
650 to 700°C
Slow cooling in furnace; intended to relieve stresses set up by extensive machining, or in complex shapes. After through heating, hold in neutral atmosphere for 1-2 hours.
Hardening
980 to 1010°C
Oil, salt bath (220 to 250°C or 500 to 550°C), air blast, still air. Tools of intricate shape or with sharp edges should preferably be hardened in air or salt bath. Holding time after temperature equalization: 15 to 30 minutes.
Obtainable hardness: 63 - 65 HRC
Tempering
Slow heating to tempering temperature immediately after hardening/time in furnace 1 hour for each 20 mm of workpiece thickness but at least 2 hours/cooling in air.
For certain cases we recommend to reduce tempering temperature and increase holding time.
Company information:
Bozhong Group Mainly supply in forms of coil, sheet, plate, rod, bar, tube, pipe, beam, angle, flange, wire, strip, channel, etc., with various varieties, wide range of dimensions, high purity, stable chemical composition, high dimensional accuracy and excellent surface quality. The products are mainly used in the fields of industries such as automobile engineering, railway transportation, aviation, aerospace, machinery, petrochemical, energy, environmental protection, offshore, chemical, oil & gas, military, power plant, nuclear power, pressure vessel, boiler equipment, mold manufacture, etc.
- steel coil
- steel plate
- steel sheet
- steel bar/rod
steel round bar
steel flat bar
steel square bar
- steel pipe/tube ( welded or seamless )
steel round pipes
steel square pipes
steel welded tubes
steel seamless tubes
- steel strip
- steel beam
- steel angle
- steel channel
- steel flange
- Steel wire
Bozhong Group can supply a variety of structural steel, high-strength steel, wear-resistant steel plate, boiler and pressure vessel steel, marine engineering and stainless steel plate in the thick steel and various European standard bars and pipes and profiles.Our global sales and service network throughout all around the world to ensure that the goods reach the customer in the shortest time.
We can follow your drawings and requirements, to provide you with oxygen cutting, plasma cutting and laser cutting and other processing services. You can also perform ultrasonic testing in accordance with EN10160 standard, EN10164 standard test Z15, Z25, Z35, weld bending detection, PWHT detection,etc.
We have ISO9001: 2000 quality management system certification, and obtain the quality certification from all the well-known certification company, including TuV / LRS / GL / CE and so on.
Special steel includes as below:
Boiler and pressure vessel steel
Pipeline steel
Bridge steel
Nuclear power steel
Structural steel
Die steel
High strength steel
Abrasion resistant steel
Weathering, corrosion resistant and fire resistant steel
High rise building steel
Shipbuilding and offshore engineering steel
FAQ:
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 don'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 you provide a sample for our testing before confirm the order?
A: Yes. We can provide sample to you for approval before you place an order to us. Free sample is available if we have stock.
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.
Customer Visting:
Warmly welcome! Pick up your phone and Call us!
Send us the inquiry here!
We will reply you at the first time.
Contact US:
Annie Wang
Direct Line: +86 - 21 - 5762 9195
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