DIN 1.3355 High Speed Steel |HS18-0-1|SKH2
DIN 1.3355/HS18-0-1 high speed tool steel manufacturers and suppliers, supplied in round rods,flat/square bars,plates,sheets,wire and blocks.
DIN 1.3355/HS18-0-1 is a typical Tungsten-type high speed tool steel which has a high hardness of HRC63~66 after heat treatment. It is not easy to overheating because of its wide heat treatment quenching. The high temperature plastic of 1.3355/HS18-0-1 tool steel is poor,but the wearability is good.
DIN 1.3355/HS18-0-1 steel also has good cutting performance which is suitable for cutting tools such as twist anchor, broach, tapping, milling wash,reamer.
Chemical Composition For DIN 1.3355 HSS
USA | ASTM :T1
JAPAN | JIS:SKH2
Critical Temperature for Heat Treatment of DIN 1.3355 HSS
DIN 1.3355 HSS Forging
- The initial forging temperature:1150-1180°C
- The final forging temperature:900-950°C
- Forging times:Repeated forging to increase the amount of deformation
- Post Forging treatment:Annealing immediately
Heat Treatment For DIN 1.3355 HSS
DIN 1.3355 HSS must be annealed after hot working to eliminate internal stress and improve turning performance.The annealing temperature of 1.3355 steel is chosen at 860-880°C.Heat the temperature to 860-880°C at a rate of no more than 220°C per hour.The holding time of the material depends on the thickness of the material,usually one hour per inch of thickness(at least two hours).
According to the cooling method, it is divided into softening annealing and isothermal annealing.
For Softenig annealing,it should be cooled to 500-600°C at 20-30°C/h and then furnace cooled.Hardness below 277HBW.
For isothermal annealing,it should be cooled to 740-760°C first, then kept for 2-4h, and then cooled to 500-600°C for slow cooling.Hardness below 255HBW.
- Hardening & Tempering For DIN 1.3355 HSS
1.Preheat DIN 1.3355 HSS with two steps,first at 450°C .then up to 850°C with a rate below 24mm/s.
2.Heat to the final hardening temperature of 1260-1300°C with a rate beow 12-15mm/s,and make sure the material must be heated thoroughly and evenly
3.Quench in warm oil,and then complete the quench in air.(care must be taken at this step)
4.DIN 1.3355 high speed steel is suitable for vacuum hardening.
5.Tempering must be done immediately after quenching.
6.Heat thoroughly and uniformly to the tempering temperature at 560°C
7.Hold at the temperature for at least two hours (one hour per inch of the total thickness).
8.Double tempering is required.
9.Hardness above 62HRC.
DIN 1.3355 HSS Tempering Vs Hardness
Heat Treatment:1260°C,Oil quenching
Supply Size & Condition For DIN 1.3355 HSS
|Process||Cold Drawn||Hot Rolled||Hot Forged||Free Forging|
|Width||Max 800mm||Max 800mm||Max 800mm|
|Process||Cold Drawn||Hot Rolled||Hot Forged|
|Shape:Round / Square / Flat Bars, Sheet, Plate,Wire. |
DIN 1.3355/HS18-0-1 high speed steel is supplied in accordance with our ISO 9001:2008 registration.
A material test report(Inspection Certificate EN 10204 3.1) will be provided, documenting the following:
3.Non Metallic Inclusion
6.Eutectic carbides distribution
7.Ultrasonic test report