Stainless Annealing Alloy Steel Round Bar 1.2080 D3 SKD1 Cr12

• Type: Alloy Steel Bar
• Standard: AISI, ASTM, GB, JIS, DIN, BS
• Technique: Hot Rolled
• Application: Tool Steel Bar, Die Steel Bar
• Surface Treatment: Black, Grinded, Machined
• Alloy: Alloy
• Model NO.: 1.2080/ D3/ SKD1/Cr12
• Special Use: Used for High Quality Wear Cold-Punching Mould
• Grade Number: SKD1/ D3/ Cr12 /1.2080 Mould Steel
• Grade: 1.2080/ D3/ SKD1/Cr12
• Hardness: Annealed Hbs248 Max
• Dimensions: 70mm~410mm
• Length: 80mm~410mm
• Shape: Round Bar
• Payment: 30% Deposit,Blance by L/C at Sight or T/T
• Certificate: ISO/Mill Certificate
• Delivery Quantity: Include MOQ
• Transport Package: Export Standard Packing or Customers′demand
• Specification: According to customer requirements
• Trademark: CF STEEL
• Origin: China
• HS Code: 7228400000
• Production Capacity: 1000t/Month

Product Description

Cold Work Stainless Annealing Alloy Steel Round Bar 1.2080 / D3 / SKD1 / Cr12
To make the cold work mould fits low impact load and with high wear resistance.

AISI D3 cold work steel, also know as DIN 1.2080 (Werkstoff) and JIS SKD1, is a 12% chrome alloy steel. D3 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.
 
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.

About products:






1, Application:

Used for making small impact,high quality wear cold-punching mould;
1) Used for high tolerance and long service life of all kinds of cold stamping die and cold shear blade, thread rolling plate, etc.;
2) Tabletting punches and sleeves for corrosive;
3) Suitable for complex deformation of mould;

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.


2, Features

1) High hardenability, high hardness, high wear resistance and good toughness, quenching deformation, etc;
2) High carbon high chromium tool steel;
3) Good machinablity and inoxidizability;
4) Immune from sinking in use, high resistance to heavy  pressure;


3, Steel Grade: 1.2080/ D3/ SKD1/Cr12 Cold Work Mould Steel


4, Specification
 

Chemical Compositons:
Grade	C	Si	Mn	P	S	Cr	W	V
Cr12	2.00-2.30	≤0.40	≤0.40	≤0.030	≤0.035	11.50-13.0	-	-
D3	2.00-2.30	0.10-0.60	0.10-0.60	≤0.030	≤0.030	11.00-13.50	≤1.00	≤1.00
1.2080	1.90-2.20	0.10-0.60	0.20-0.60	≤0.030	≤0.030	11.00-13.50	-	-
SKD1	1.90-2.20	0.10-0.60	0.20-0.60	≤0.030	≤0.030	11.00-13.50	-	-

5, Size
 

Size of SKD1/1.2080 Cold Work Steel
Round bar	Diameter(mm)	Length (mm)
	Max:800	Max: 9000
Plate	Thickness(mm)	Width (mm)	Length (mm)
	Max:800	Max:1000	Max:6000

6, Delivery date

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


7, Packing: Standard export packing or As per request





8, About Us







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.