ASTM O7 Round Steel with Cold Working Mould Steel

• Type: Tool Steel
• Standard: AISI, ASTM, DIN, JIS, GB
• Composition: Ferrous Steel Scrap
• Technique: Hot Rolled
• Shape: Round, Square, Hexagonal, Angle
• Surface Treatment: Polished
• Model NO.: ASTM O7
• Special Use: Mold Steel
• Application: Tool Steel Bar
• Steel Grade: Prime Steel
• Grade Number: O7
• Hardness: Annealed Hbs250 Max
• Length: 80mm~410mm or Any
• Certificate: SGS ISO
• Delivery Time: Within 10 Working Days
• OEM: Yes
• Packing: Seaworthy Packing
• Dimensions: 3.5mm-800mm or Any
• Employees: 12, 000
• Tolerance: 0/+2.0mm(for Turned Surface)
• Transport Package: Wooden Box or Customer′s Request
• Specification: ISO SGC
• Trademark: Taixie
• Origin: Wuxi, China
• HS Code: 7228600000
• Production Capacity: 10000t/Mon

Product Description

Low alloy special purpose steels or group L steels contain small quantities of chromium, nickel, vanadium, and molybdenum. O7 and L6 form the group L steels.
TheO7Die Block Steels contain 0.70% carbon with a quenched hardness of about 64 HRC. The alloying elements in these Die Block Steels are chromium and molybdenum, and 1.50% nickel to increase toughness. These Die Block Steel can maintain hardness above 60 HRC for sections of 75 mm (3 in.) thickness.
Chemical Composition(%):

Steel Grade	C	Si	Mn	P	S	Cr	Ni	Mo
L6	0.65-0.75	0.10-0.50	0.25-0.80	0.030 max	0.030 max	0.60-1.20	1.25-2.00	0.50 max	/
DIN1.2714	0.50-0.60	0.10-0.40	0.60-0.90	0.030 max	0.030 max	1.00-1.20	1.50-1.80	0.45-0.55	0.07-0.12

 

Applications:
1. Diecasting mould(mold, fixed block, upper die, jet nozzle, nitride thimble ).

2. Extrusion die(mold, supporting member,  choke blocks).

3. Hot press die. (aluminum, magnesium, copper alloy)

4. Parts, such as cold cutting, overlap, hot shears, wearable parts.

5. Important parts for aviation industry.

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