Cold Work round bar D3 SKD1 1.2080 Cr12

• Type: Special Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Mould Steel
• Technique: Hot Rolled
• Shape: Round
• Surface Treatment: Polished
• Model NO.: D3/SKD1/1.2080/Cr12
• Special Use: High-strength Steel Plate
• Application: Tool Steel Bar
• Grade: D3/SKD1/1.2080
• Diameter: 20-300mm
• Length: 250-6000mm
• Test: SGS / Ut 100% / Element Testing
• Payment: 30% Deposit,Blance by L/C at Sight or T/T
• Delivery Quatity: Include MOQ
• Delivery Time: For abundant stock, 15-20 days. For customized PRO
• Transport Package: Standard Export Packing or According to Customers′
• Specification: 20-500mm
• Trademark: CF STEEL
• Origin: China
• HS Code: 72254
• Production Capacity: 1000t/Month

Product Description

High Strength Cold Work flat round bar D3 SKD1 1.2080 Cr12 Cold Work Mould Steel Tool Steel


D3 SKD1 1.2080 Cr12 cold work steel, also know as DIN 1.2080 (Werkstoff) and JIS SKD1, is a 12% chrome alloy steel. D3 SKD1 1.2080 Cr12 cold work steel has 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. Type D2 tool steel is the most commonly used steel among the group D steels. The D3 cold work steels contain 1.5 to 2.35% of carbon and 12% of chromium.
D3 Tool Steel is a high-carbon, high-chromium, oil-hardening tool steel thatis characterized by a relatively high attainable hardness and numerous, large, chromium-rich alloy carbides in the microstructure. These carbides providegood resistance to wear from sliding contact with other metals and abrasivematerials.
 
D3 SKD1 1.2080 Cr12 alloy steel is heat treatable and will offer a hardness in the range 58-64 HRC. After heat treatment D3 tool steel is hard, durable and dense, and is immune from sinking in use. It offers a measure of corrosion resistance when polished. In general, the applications of AISI D3 tool steel resemble those of D2 tool steel but it should be remembered that alloy tool steel D3 SKD1 1.2080 Cr12 has better wear resistance of the two steels and is preferred for such items as shear blades. Owing to its higher wear resistance, AISI / ASTM D3 cold work steel is slightly more difficult to grind than D2 steels.


Relevant Grade D3 Cold Work Steel Specifications & Equivalents
 

Country	USA	German	Japan
Standard	ASTM A681	DIN EN ISO 4957	JIS G4404
Grades	D3	1.2080/X210Cr12	SKD1

Mechanical Properties of D3 Cold Work Steel
 

Mechanical Properties
Properties	Metric	Imperial
Izod impact unnotched	28.0 J	20.7 ft-lb
Poisson's ratio	0.27-0.30	0.27-0.30
Elastic modulus	190-210 GPa	27557-30457 ksi

Physical Properties
 

Properties	Metric	Imperial
Density	7.7 x 1000 kg/m3	0.278 lb/in3
Melting point	1421°C	2590°F

1. Introduction

D3 SKD1 1.2080 Cr12 mold steel is one of a cold work mold steel with excellent wear resistance and stability heat treatment. Widely used for deep drawing die. 
The resistance welding electrode: Chromium, zirconimu, copper though the method combine with heat treatment and cold working to ensure is performance. 
So that it has the best mechanical property and good physical property. high carbon,high chrome ledeburite cold work mould steel,has good hardenability characteristic and good wear resistance.

 
2. Application

1.Used for making small impact load, high requirement of high wear resistance cold work die and puncher.
2. High requirement with wear resistance cold punched die, puncher, coining die, screw plate, drawing die,gauge,drill bushing.

Typical Applications

Highly stressed cutting
Punching tools for thin sheets,
Shear blades for cutting
Profile rolls,
Drawing and deep drawing tools,
Stone processing tools,
Knives for paper and plastics,
Shear knives for thin sheets.
Deep drawing,
Pressure pads
Highly wear-resistant plastic moulds.


3. Feature

1. high strength,
2. good quenching degree
3. good wear resistance,
4. weak impact toughness
 

4. Chemical composition (D3 Cold Work Steel Chemical Composition and Equivalent Grades)
 

ASTM A681	C		Mn		P	S	Si		Cr		V		T		Mo
D3	2.00	2.35	0.10	0.60	0.03	0.03	0.10	0.60	11.00	13.50	. . .	1.10	. . .	1.00	. . .	. . .
DIN ISO 4957	C		Mn		P	S	Si		Cr		V	T	Mo		Ni
1.2080/X210Cr12	1.90	2.20	0.20	0.60			0.10	0.60	11.00	13.00	-	-	-	-	-	-
JIS G4404	C		Mn		P	S	Si		Cr		V		T	Mo		Ni
SKD1	1.90	2.20	0.20	0.60	0.03	0.03	0.10	0.60	11.00	13.00	-	-	-	-	-	-

5. Heat treatment regime

Start temperature 1000ºC.  finished temperature 800°C
quench temperature 950~1000°C,  oil cooling or force air cooling
 

6. Supply material: hot rolling, cold drawing, forged, hot rolled steel plate, cold draw steel wire spheroidizing annealing state, hardness 267~217HBw


7, Delivery Date

For abundant stock, 15-20 days.
For customized products, 30-50 days.


8. Packing: Standard export packing or according to customers' request.





9. About Us





Forging of D3 Cold Work Tool Steel
 
Pre-heat at 900-950°C then raise temperature to 1050-1100°C. Soak until uniformly heated. D3 tool steel is relatively hard at elevated temperature. Therefore, initial hammer blows must be light and the temperature must not be allowed to fall below 1020°C until the metal begins to flow. Final forging should not be done below 900°C.
 

Heat Treatment of D3 Cold Work Steel
 
Heat Treatment

D3 tool steel requires hardening and tempering to achieve maximum properties. For maximum accuracy, the parts of D3 tool steel should be stress relieved after roughing operations. Stress should be relieved at 648°C (1200°F) for one hour and cooled slowly.

Annealing

Heat D3 tool steels uniformly to 850-870°C, soak thoroughly, then slow furnace cool at a rate of not more than 25°C per hour to 650°C. The parts may then be air cooled. This should result in a maximum hardness of brinell 248.

Tempering

The D3 cold work steel should be cooled to room temperature and should be tempered immediately. The parts should be placed in the tempering furnace and increased slowly to the desired tempering temperature. Tempering for 1 hour per inch of thickness is required.

Hardening

D3 tool steel is extremely sensitive to overheating during hardening - do not overheat.
Pre heat slowly to 800-850°C, the raise rapidly to 950-970°C and soak until completely equalised. Quench in oil.


D3 SKD1 1.2080 Cr12 Tool Steel is a high carbon, high chromium, oilhardening tool steel thatis characterized by a relatively high attainable hardness and numerous, large, chromium rich alloy carbides in the microstructure. These carbides providegood resistance to wear from sliding contact with other metals and abrasive materials.
AISI D3 alloy steel is heat treatable and will offer a hardness in the range 58-64 HRC. After heat treatment D3 SKD1 1.2080 Cr12 tool steel is hard, durable and dense, and is immune from sinking in use. It offers a measure of corrosion resistance when polished. In general, the applications of AISI D3 tool steel resemble those of D2 tool steel but it should be remembered that alloy tool steel D3 has better wear resistance of the two steels and is preferred for such items as shear blades. Owing to its higher wear resistance, AISI / ASTM D3 cold work steel is slightly more difficult to grind than D2 steels.