4140/1.7225 Alloy Steel Plate

We are engaged in offering excellent quality 4140/1.7225 Alloy Steel Plate to our valuable clients.
a c 4140/1.7225 Alloy Steel is a chromium/molybdenum medium-carbon steel.
a c 4140/1.7225 Alloy Steel offers medium to high harden-ability and good fatigue properties.
a c 4140/1.7225 Alloy Steel has a machine-ability rating of 50% to 55% of a 1212 carbon steel.
a c 4140/1.7225 Alloy Steel is sold in the annealed condition. Typical annealed hardness is BHN 217/229 Rc 17/18. Or in the pre-hardened condition BHN 262/321 Rc 26.6/34.3 with a higher surface hardness and lower center hardness.
a c 4140/1.7225 Alloy Steel is capable of meeting ASTM-A322.

a c Typical Applications:
Base Plates
Tool Holders
Molds
Support Plates
Fixtures
Punch Holders

a cChemical Composition:
Carbon: 0.38~0.45%
Silicon: 0.17~0.37%
Manganese: 0.50~0.80%
Chromium: 0.90~1.20%
Molybdenum: 0.15~0.25%