1.3265 / S18-1-2-10 High Speed Steel

1.3265 / S18-1-2-10 High Speed Steel manufacturers and suppliers, supplied in round bar,square bar,flat bar,plate,sheet and wire.1.3265 / S18-1-2-10 High Speed Steel is one of tungsten type high speed tool steel according to ASTM/A600 standard. Compared with AISI T4，it has higher cobalt with 8%,which makes higher temperature performance and better toughness.It also has high abrasion resistance and good cutting performance.The surface hardness can reach 68-70HRC after quenched.

1.3265 / S18-1-2-10 High Speed Steel Supply Form & Size & Tolerance

Round bar
Diameter	1-16mm	10-50mm	50-180mm	180-300mm
Process	Cold Drawn	Hot Rolled	Hot Forged	Free Forging
Flat bar
Thickness	1-2.5mm	1.5-20mm	20-300mm
Width	Max 800mm	Max 800mm	Max 800mm
Process	Cold Drawn	Hot Rolled	Hot Forged

Remark:Tolerance can be customized as per requests

1.3265 / S18-1-2-10 High Speed Steel Chemical Composition per DIN 17350 (High Speed Steel)

GRADE	NUMBER	C	Si	Mn	P	S	Cr	Mo	V	W	Co
S18-1-2-10	1.3265	0.72-0.80	≤ 0.45	≤ 0.40	≤ 0.030	≤ 0.030	3.80-4.50	0.50-0.80	1.40-1.70	17.50-18.50	9.00-10.00

 

1.3265 / S18-1-2-10 High Speed Steel Physical Property

Density ,g/cm3	8.75
Specific heat ,J/kg.K	42
Thermal conductivity,W/mK	34
Modulus of elasticity,kN/mm2	424
Thermal expansion,20-100 ºC,untreated	11.2 x 10^ -6 /ºC

1.3265 / S18-1-2-10 High Speed Steel Mechanical Property

Hardness, Rockwell C (Quenched at 1277°C ,Tempered at 552°C)	63-65 HRC
Poisson’s ratio	0.27-0.30
Elastic modulus	190-210 GPa

1.3265 / S18-1-2-10 High Speed Steel Forging

Pre heat the AISI T5 with two steps.First,heat slowly and uniformly to 650-750°C with a rate not exceeding 220°C per hour,second,heat more quickly to the forging temperature of 1000-1150°C.Re-heating is necessary when temperature below 950°C. Slow cooling in furnace after forging.

1.3265 / S18-1-2-10 High Speed Steel Annealing

Annealing must be performed after hot working and before re-hardening.Heat the temperature to 820 to 870°C with a rate not exceeding 220°C per hour.Controlled slow cooling in furnace at 10 to 20°C per hour to approximately 550°C, followed by cooling in still air. Hardness after annealing 285Brinell, maximum.

1.3265 / S18-1-2-10 High Speed Steel Stress Relieving

It is recommended to stress relieve after machining and prior to hardening to minimise the possibility of distortion.Heat in a neutral atmosphere to the  temperature of 600 to 650°C, and  soak for approximately two hours,followed by slow cooling in the furnace.

1.3265 / S18-1-2-10 High Speed Steel Hardening

Preheat T5 tool steel slowly to the temperature of 820-870°C,then heat uniformly to Austenitizing Temperature,for salt bath 1277°C,for Controlled atmosphere furnace 1288°C,followed by salt bath or thermal quenching or warm bath approx. 550°C.

1.3265 / S18-1-2-10 High Speed Steel Tempering

Tempering should be carried out immediately after quenching. Heat slowly and uniformly to the tempering temperature 550-590°C,soak well not less than 2 hours(one hour per 25mm of total thickness).Triple tempering is recommended,hardness after tempering is Min 63HRC.

Tempering Temperature	100	150	200	250	300	350	400	450	500	550	600	650
Hardness (HRC)	64	64.5	63	62.5	62	62	62.5	63.6	64.8	66	64	60

1.3265 / S18-1-2-10 High Speed Steel Application

1.3265 / S18-1-2-10 High Speed Steel is good for machining high strength steel,high temperature alloy,titanium alloys,casting alloy materials and other difficult-to-machine materials,and also is widely used in cutting tools,broaches,punches, turning blades,milling cutter,drill,and etc.