Alloy Steel Bar/Block/Plate/Flat ASTM L2 DIN 1.2210/115CRV3 Sks43 Cold Work Tool Steel

• Type: Round
• Standard: AISI, ASTM, DIN, JIS, GB, BS
• Composition: Stainless Steel Scrap
• Technique: Forged
• Shape: Plate
• Surface Treatment: Polished
• Model NO.: Round bar
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel, Mold Steel
• Application: Tool Steel Bar
• Transport Package: Wooden
• Specification: 6-400mm
• Trademark: Smooth
• Origin: China
• HS Code: 7214100000
• Production Capacity: 5000 Ton/Year

Product Description

Grade with low hardenability and sensitivity to overheating, low tendency to crack when hardened
in water, high abrasion resistance, good cutting properties and durability of the knife. It is also
characterized by low resistance to tempering. Material used for the production of cutters, drills,
circular saws for metal cutting, reamers, coin and medal punches, tools for cutting wood, paper,
tobacco, and rubber. It is also used for the production of dies, threaders, drills, circular knives,
jaws for cutting threads and nails, engraving tools, bimetal knives, and countersinks. In the
original Bright steel NW1, tungsten at a concentration of 1.10-1.50% was present.


CHEMICAL COMPOSITION:

C	Si	Mn	P	S	Cr	Mo	W	V	Co	Ni
1,10-1,25	0,15-0,30	0,20-0,40	-	-	0,50 - 0,80	-	-	0,07-0,12	-	-

MECHANICAL PROPERTIES:

HEAT TREATMENT:

Soft annealing:
710 to 740 °C for about 2 to 5 hours; slow controlled cooling of 10 to 20 °C per hour to about 600 °C;
further cooling in air, max. 220 HB
 

Hardening:
780 to 840 °C
15 to 30 minutes keeping curing temperature
quenching in water/oil
obtainable hardness: 64-66 HRC
 

Tempering:
slow heating to tempering temperature immediately after hardening;
minimum time in furnace: 1 hour per 20 mm part thickness,
min. 2 hours/cooling in air
 

Hardness after	Tempering ºC	Symbol	Value
Soft annealing	-	HB	223
Quenching^1) with 790 ºC in water	-	HRC	62
Quenching with 790 ºC in water and tempering	180	HRC	60

INTERNATIONAL STEEL GRADES:

ISO		CEN		Russia
-	-	21MnCr5	EN ISO 4957:1999	-	-
US		Japan		China
-	-	-	-	-	-

APPLICATION:
Steel susceptible to dental borers, reamers and screw taps.