R9M4K8 - 1.3207 circle, bar, forging

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
R9M4K8 EP688 1.3207 Delivery from the stock, in stock

Percent composition, GOST 19265-73

Fe C Si Mn Ni S P Cr Mo W V Co Cu
basis 1 - 1.1 0.2 - 0.5 0.2 - 0.5 ≤0.6 ≤0.03 ≤0.03 3 - 3.6 3.8 - 4.3 8.5 - 9.5 2.3 - 2.7 7.5 - 8.5 ≤0.25

Tool high-speed steel. Hardness after annealing HB 10 -1 = 285 MPa. The steel has an increased tendency to decarburization, increased toughness, good wear resistance, good grindability.

Temperature of critical points

Ac1 = 800, Ac3(Acm) = 840, Ar3(Arcm) = 790, Ar1 = 750

Mechanical properties (temperature 20°C)

Range s in sT d5 y KCU Heat treatment
- MPa MPa % % kJ/m2 -
960 540 7 10 80 Delivery status

Physical material properties

T E 10- 5 l r
Degree N/mm2 W/(m-degree) kg/m3
20 2.29 8300
200 27
400 29
600 31
900 32

Sv - Ultimate short-term strength

sT - Limit of proportionality (yield strength for permanent deformation)

d5 - Tensile elongation at break.

y - Relative contraction

E - Modulus of elasticity of the first kind [MPa]

l - Heat transfer coefficient (heat capacity of the material)

KCU - Impact strength

r - specific gravity

Application

Tool production for machining of high-strength stainless and heat-resistant alloyed steels under conditions of heated cutting edge (gear cutting tools, milling cutters, shaped cutters, countersinks, taps).

Analogues

England Bulgaria Hungary Germany Spain Poland USA France Sweden Japan
BS BDS MSZ DIN, WNr UNE PN aisi AFNOR SS JIS
BT42 R9M4K8 R14 S10-4-3-10 HS10-4-3-10 SK10V T11348 HS10-4-3-10 2736 SKH57

Vendor

We offer to buy rounds, bars, forgings Р6М5К5, 1.3243, hs6-5-2-5 at an affordable price from specialized warehouses of the supplier Evek GmbH with delivery in any city. It is possible to order the products of non-standard parameters. We have the best price-quality ratio for the whole range of products. Supplier Evek GmbH offers to buy rounds, bars, forgings Р6М5К5, 1.3243, hs6-5-2-5, the price - optimal in this segment of rolled products.

Buy, bargain price

Supplier Evek GmbH offers a round, bars, forgings P6M5K5, 1.3243, hs6-5-2-5, price - determined by the technological features of production without the inclusion of additional costs. The company's website shows information about the latest arrivals of products. Buy rounds, bars, forgings P6M5K5, 1.3243, hs6-5-2-5 or other similar rolled products today. In the segment of rolled steel, Evek GmbH is a profitable supplier.