SCM420 Steel

SCM420 Steel introduction

SCM420 steel is a  low carbon chrome moly steel used to manufacture surface carburised parts used in auto parts, machinery, capital goods, shafts, fastneners, etc which work in non corrosive environments usually below 250C.

It has high quench hardenability. SCM420 has good weldability. We can provide you SCM420 in sizes from 23.5mm to 80mm.

We are supplier of SCM420  steel to a number of companies in Mumbai, Pune (eg Chakan, Bhosari, Ranjangaon, etc), Aurangabad, Ahmednagar, Rajkot, Thane, Nagpur, etc. All our En15Am supplied is Ultrasound and MPI inspected.

Chemical composition is SCM420 steels

  • C% – 0.18 to 0.23
  • Mn%-0.60 to 0.9
  • S%- 0.03 max
  • P% –   0.03 max
  • Cr% – 0.9 to 1.2
  • Mo% – 0.15 to 0.25
  • Si% – 0.15 to 0.25

Grades Equivalent to SCM420 steel

  • China- GB 20CrMo
  • USA – AISI 4118
  • Germany – 25CrMo4

Product Advantages

1. It has high strength and toughness
2. It has high hardenability
3. It has good thermal strength property
4. It has good mechanical properties

scm420 steel


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