1.3243 M35 Skh55 Price High Speed Steel Round Bar

Grade

C

Si

Mn

P

S

Cr

Mo

V

W

Co

1.3243

0.88-

0.95

0.40 max

0.40 max

0.030 max

0.030 max

3.80-4.50

4.75-

5.20

1.75-

1.90

6.00-

6.70

4.60-

5.00

Packing details

In seaworthy packing, as your requirement.

Delivery details

within 10-50 days

>>>Heat Treatment:

Hardness [HRc] 67, 66, 65

Forging: Pre heat the 1.3243 steel slowly and uniformly to 450-500°C and equalise. Then increase more quickly to the forging temperature of 950-1100°C and equalise prior to forging. Do not allow the forging temperature to drop below 950°C, if this occurs re heating will be necessary. Always cool the steel very slowly after forging.
Annealing: 1.3243 bar is supplied in the annealed and machineable condition. Re annealing will only be necessary if the steel has been hot worked, forged, or hardened by the toolmaker. Heat the M35 hss bar high speed steel to 850°C at a rate of no more than 220°C per hour. Always hold at temperature for one hour per 25mm of thickness (with two hours being minimum). Furnace cool slowly. The steel bar annealed hardness achieved should be 260 Brinell or lower.
Stress Relieving: If tools produced from 1.3243 high speed steel are heavily machined or ground it is recommended to stress relieve after machining and prior to hardening to minimise the possibility of distortion. To stress relieve heat the component to 600-700°C and soak well (approx 2 hours) Cool slowly in the furnace. The tools can be finish machined before heat treatment.
Hardening: For best results harden in a vacuum or controlled furnace, or in a properly rectified salt bath. Pre heat thoroughly in two steps to 450-500°C, then to 820-870°C, transfer to the high temperature salt bath or furnace. The exact hardening temperature to use for M35 hss bar will depend on the type of work being treated, but in general components should be hardened from the range of 1050-1250°C.
Tempering: 1.3243 high speed steel components can be tempered between 510-620°C. Triple tempering is recommended with a minimum of two hours at temperature per cycle. The component should be cooled in still air to room temperature between tempering treatments.
Temperature [°C] 540 560 580

>>>Steel Grades

 1.3243,

 M35,

 SKH55

Mill′s test certificate:

EN 10204/3.1 with all relevant data reg. chem. composition, mech. properties and results of testing.

Application:

1.3243 high-speed steel bar is a high speed tool steel suitable for cutting tools such as, broaches, taps, milling, reamers, hobs, shapers cutters, saws etc. In terms of performance, 1.3243 is an all-round steel to be used in cutting conditions where demands for hot hardness are of importance. 1.3243 hss bar is also suitable for cold work applications, where exacting demands are imposed on wear resistance. The steel possesses an admirable combination of wear resistance and toughness and in these respects superior to the high alloyed cold work steels.