D3 Cold Work Steel 1.2080 X210cr12 SKD1 Steel Round Bar Flat Bar

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Forged
• Application: Tool Steel Bar, Die Steel Bar
• Surface Treatment: Polished
• Alloy: Alloy
• Model NO.: D3 Cold Work Steel 1.2080 X210Cr12 SKD1 Steel Roun
• Special Use: Mold Steel
• Products: Tool Steel Bar, Die Steel Bar
• Shape: Round Bar, Flat Bar
• Grade: D2 D3 1.2379 etc
• Transport Package: Sea Worthy
• Specification: M12-M310
• Trademark: Laiwu Xincheng
• Origin: China
• HS Code: 72283090
• Production Capacity: 3000tons/Month

Product Description

D3 Cold Work Steel 1.2080 X210Cr12 SKD1 Steel Round Bar Flat Bar

AISI D3 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 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.

1. Supply Range of AISI D3 Cold Work Steel

D3 Tool Steel Round Bar: diameter 8mm - 350mm
D3 Steel Plate: thickness 2mm -300mm x width 200mm - 800mm
D3 Steel Slab: 200mm x 500-800mm

Surface Finish: Black, Rough Machined,Turned or as per given requirements

2. 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

3. D3 Cold Work Steel Chemical Composition and Equivalent Grades
 

ASTM A681	C	Mn	P	S	Si	Cr	V
D3	2-2.35	0.1-0.6	0.03	0.03	0.1-0.6	11-13.5	max1.1
DIN ISO 4957	C	Mn	P	S	Si	Cr	V
1.2080/X210Cr12	1.9-2.2	0.2-0.6			0.1-0.6	11.0-11.3	-
JIS G4404	C	Mn	P	S	Si	Cr	V
SKD1	1.9-2.2	0.2-0.6	0.03	0.03	0.1-0.6	11.0-11.3	-

4. 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

• Thermal Properties

Properties		Conditions
		T (°C)	Treatment
Thermal expansion	12 x 10-6/ºC	20-100	-

5. 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.

6.Applications of AISI D3 Cold Work Tool Steel

AISI D3 Cold Work Steel has high strength, good hardenability and wear resistance. D3 is suitable for applications such as complex blanking and forming tools for long runs and for hard and abrasive materials.

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.