DIN 1.2631 - Sadashiv Steel

DIN 1.2631 is a medium alloyed cold work steel. It has good thorough hardenability, high wear resistance and very good toughness.

» DIN 1.2631

» X50CrMoW9-1-1

CHEMICAL COMPOSITION

	C	Cr	SI	Mn	Mo	Ni	W	Cu	P	S
Min	0.45	8.00	0.80	0.40	1.10		1.10	--	--	--
Typical	0.50	8.50	0.90	0.50	1.20		1.20		--	--
Max	0.55	9.00	1.00	0.60	1.30	0.25	1.30	0.25	0.035	0.035

APPLICATIONS

» Wood working knives
» Straight and round cutting blades
» Blades used in paper industry

FORM SUPPLIED

» Round bar
» Plates
» Square Block
» Flat Bar

Available surface conditions : hot rolled, ground, peeled, turned, drawn, cold rolled

HEAT TREATMENT

Annealing: Annealing temperature/ 0 C: 750~800; After the annealing, degree of hardness ≤HBS: 230
Quenching: Hardening temperature/ 0 C:1020~1050, Quenching in oil

Tempering: Commonly used drawing temperature/ °C: 180~250;
After tempering hardness HRC | 100 °C: 58; After tempering hardness HRC | 200 °C : 57; After tempering hardness HRC | 300 °C: 56 ; After tempering hardness HRC | 400 °C: 55
Normalizing: at Normalizing temperature, then cool in furnace

Tool	Hardening	Tempering
single edge cutting tools	1220 ºC	560 ºC
multi edge cutting tools	1180-1220 ºC	560 ºC
cold work tools	1050-1150 ºC	560 ºC

PROCESSING

S1 can be worked as follows :

Machining( grinding, turning, milling)
Polishing
Hot forming
Electrical discharge machining
Welding(special procedure incl. pre-heating & filler
materials of base material composition)

GRINDING

During Grinding, local heating of the surface, which can alter the temper, must be avoided. Grinding wheel manufacturers can provide advise on the choice of grinding wheels

SURFACE TREATMENT

The Steel Grade is a perfect substrate material for PVD coating. If nitriding is requested, a small diffusion zone is recommended but avoid compound and oxidized layers.

DELIVERY HARDNESS

» Typical soft annealed hardness is 230 HB

Show The Datasheet