20C

Nominal chemical composition,%

C Si Mn Cr Ni Mo
1.00 0.25 0.45 - - -

Main mechanical properties 
expressed in MPa (nominal value at 20°C, tolerance ± 100 MPa)

Material tensile strength, Rm Yield strength Rp 0.2% Elastic limit 0.01% e-modulus g-modulus Elongation Max service temperature
SANDVIK 20C SHT 1600÷2100* 1450÷1900* 1350÷1650* 210.000 80.000 - 100 °C
SANDVIK SVC FLAPPER 1650÷2100* 1450÷1900* 1350÷1650* 210.000 80.000 - 100 °C

* The mechanical properties decrease as the thickness increases and vice versa.

Description and uses:

Non-alloyed carbon steel

20C SHT

 

Non-alloyed hardened and tempered carbon steel ensures good resistance to fatigue and wear, hardness along with flexibility, a good surface finish and a lack of shape defects.

 

20C SVC Flapper

 

Non-alloyed hardened and tempered carbon steel is chemically and mechanically similar to 20C SHT, but is specifically developed and produced for compressor valves. This specification ensures increased mechanical properties, an excellent surface finish, excellent flatness, a low level of non-metallic inclusions, high resistance to fatigue under stress from impacts and bending. 

Share by: