EN34 | 665M17 is a 2% nickel, molybdenum case hardening steel grade. EN34 | 665M17 is suitable for applications requiring wear resistance and shock resistance.
It offers good core strength and impact properties with little temper brittleness. Combining good core strength, toughness and fatigue resistance EN34 | 665M17 can be case hardened up to 60HRc.
High Peak Steels stock EN34 | 665M17 in black steel round bar.
UK Standard EN34 | SAE/AISI 4615
| Product | Min size | Max size |
|---|---|---|
 | 50mm dia | 200mm dia |
 | ||
 | ||
 |
| C | Si | Mn | S | P | Cr | Ni | Mo | |
|---|---|---|---|---|---|---|---|---|
| Min | 0.14 | 0.1 | 0.35 | 1.5 | 0.2 | |||
| Max | 0.2 | 0.4 | 0.75 | 0.04 | 0.035 | 0.3 | 2 | 0.3 |
| Yield N/mm2 | 0.2% proof N/mm2 | UTS (Rm) N/mm2 | Elong (A) % | Red of Area (Z) % | Hardness HB | Impact Test (KV) J |
|
|---|---|---|---|---|---|---|---|
| Normalised | 207 | ||||||
| Quenched & Tempered | 770mm max | 12 |
Not sure if EN34 or EN36 is the best steel for the job? Explore our range of steels by material to get a better understanding of characteristics and applications.
Whatever the sector, we understand the bespoke steel requirements for each application; supplying stock lengths and cut pieces directly to your factory.
Alongside steel supply, we offer a range of steel stockholder services, including bar turning, sawing and precision grinding. We also provide steel hardening and tempering treatments.
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