COLD WORK TOOL STEEL DIN 1.2210 heat-resisting steel

PRODUCT : DIN 115CrV3 (SILVER STEEL WITH VANADIUM)

ALLOY STEEL FOR COLD WORKING

CHEMICAL COMPOSITION: 

C : 1,10 - 1,25;  Mn 0,20 -0,40 ; Si 0,15 – 0,30 ; P MAX. 0,030 ; S MAX. 0,030 ; Cr 0,50– 0,80 ; V 0,07 – 0,12 ; 

DELIVERY :  HEAT TREATMENT ANNEALED 219 / 250HB

SURFACE FINISHING :  CENTERLESS GROUND  Ra 0.8um

DIAMETERS : FROM 1mm TO 40mm 

DIAMETER TOLERANCE : AS  PER DIN 175 OR EQUIVALENT ISO h9 .

AS PER REQUIREMENT WITH TOLERANCES h 8 OR  h 7

DELIVERY  LENGTHS: FROM  1METER TO 3 METERS

QUALITY : HIGH PRECISION EN SIZES ; OPTIMAL MACHINABILITY ON ANNEALEAD STATUS; DEFECTS AND DECABURISATION FREE ; EXCELENT FINISHING AND STRAIGHTNESS.

Properties :
Chromium - vanadium alloyed cold work tool steel with high wear resistance,high edge holding properties,simple heat treatment, good machinability and toughness properties, bright ground and polished.

Applications :
Silver steel for guiding pins, small tools and structural parts in precision mechanics, button type drills and jagged bits,screw taps, milling cutters, broaching tools, piercing punches, ejector pins, twist drills, punches and taps, surgical inst-ruments, reamers, countersinks, dowels, engraving tools, metal cutting saws, axles and shafts, toothed drills, scraping tools, gear cutters, mortice, wood chisels, guide rods.

Heat Treatment :
Annealing:710 - 750 °C

Hardness after annealing:Max.  220 HB

Stress relieving:Approx.  650 °C

Hot forming:1050 - 850 °C

Hardening:780 - 810 °C  or  810 - 840 °C

Quenching media:780 - 810 °C, Water

810 - 840 °C, Oil ( up to 15 mm diameter )

Hardness after quenching:64 - 66HRC

Hardness after tempering:

100°c	200°c	300°c	400°c
64HRC	62HRC	57HRC	51HRC