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.