Cpm 1V Material Powder Metallurgy Tool Steel Black Surface Forging Steel Hot Rolled Steel Flat Bar Round Bar

• Type: Special Steel Bar
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Stainless Steel Scrap
• Technique: Forged
• Shape: Bar
• Surface Treatment: Polished
• Model NO.: powder tool steel
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Die Steel Bar
• Length: 2500-5500mm
• Material: HSS
• Usage: Gear Hob
• Customized Support: OEM
• Transport Package: N/M
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7226911000
• Production Capacity: 1000ton/Month

Product Description

Detailed Photos

Product Description

CPM 1V is a medium carbon, high alloy tool steel which exhibits high toughness combined with high heat resistance. It is suited for both hot or cold applications which demand high impact toughness and also require moderate wear resistance.

Typical Applications:
Hot Work: 
Hot and Warm Forming Dies Hot
Shear Dies
Hot Heading Dies Extrusion Dies
Forging Dies and Punches

Cold Work: 
Cold Heading Dies High Impact
Blanking Dies Punches
Thread Rolling Dies

Chemical Composition:

CPM 1V	Carbon	Chromium	Vanadium	Tungsten	Molybdenum
	0.55%	4.5%	1.00%	2.15%	2.75%

Physical Properties:
Elastic Modulus      30 X 106psi        (207 GPa)
Density              0.284 lbs./in3     (7.85 g/cm3)
Thermal Conductivity B    TU/hr-ft-°F      W/m-°K       cal/cm-s-°C
72°F (22°C)                12.64             21.88       5.23X10-2
212°F (100°C)              13.80             23.88       5.70X10-2
572°F (300°C)              14.90             25.80       6.16X10-2
752°F (400°C)              15.46             26.76       6.39X10-2
1004°F (540°C)             16.23             28.09       6.71X10-2

Thermal Treatments:
Annealing
Heat to 1600-1650°F(870-900°C), hold 2 hours, slow cool no faster than 25°F (15°C) per hour to 1100°F (595°C), then furnace cool or cool in still air to room temperature.

Annealed Hardness: About BHN 187

Stress Relieving
Annealed Parts: Heat to 1100-1300°F (595-705°C), hold 2 hours, then furnace cool or cool in still air.
Hardened Parts: Heat to 25-50°F (15-30°C) below origi nal tempering temperature, hold 2 hours, then furnace cool or cool in still air.


Hardening
Preheat:
Heat to 1550-1600°F (840-870°C) Equalize.

Austenitize: 
1950-2000°F (1065-1120°C), hold time at temperature 10-15 minutes. The lower austenitizing tem perature of 1950°F (1065°C) provides the best impact toughness.

Quench: 
Positive pressure quench (2 bar minimum) to below 125°F (50°C), or salt or interrupted oil quench to about 1000°F (540°C), then air cool to below 125°F (50°C). Salt bath treatment if practical will ensure maximum attainable toughness for a given hardening treatment.

Temper:
Three times at 1000-1025°F (540-550°C), 2 hours minimum each time.

Aim hardness 57-59 HRC.

Surface Treatments: 
CPM 1V can be nitrided or PVD coated. Due to its high tempering temperature, it will retain its hardness after such processes, making it a more suitable substrate than A2 or S7. As for most tool steels, higher temperature sur face treatments, such as CVD, may result in dimensional distortion