1.3505
- Tensile Strength
- 700 MPa
- Thermal Conductivity
- 42 W/(m·K)
- Elongation
- 27 %
- Chemical Composition
- C: 1%, Cr: 1.5%, Mn: 0.35%, Si: 0.25%, P: 0.015%, S: 0.008%
Other Names
- 100Cr6
- SAE 52100
- SUJ2
- GCr15
- SS 2258
- 535A99
- ČSN 14 109
Material Description
1.3505 / 100Cr6 is normally machined in the spheroidized annealed condition, typically around 200–220 HB and 700 MPa. Its relatively high elongation in this condition gives a tendency toward long, continuous chips, which can be problematic especially in continuous operations such as turning and drilling, so good chip-control geometry is important. General-purpose or sharper geometries work well and there is normally no need for tools intended for high-strength steels. Avoid rubbing with a dull or heavily worn cutting edge, as excessive local heat can produce a hardened surface layer and make subsequent machining significantly more difficult. After final heat treatment, 100Cr6 typically reaches around 60–64 HRC and must then be machined with tools intended for hardened steels.