Technical Article

4145H Oil Drilling Tool Steel

4145H Oil Drilling Tool Steel 

Using electric arc furnace + refining outside the furnace

Material Grade: 4145 H

Standard: AISI - American Iron and Steel Institute Standard

Country: USA

Steel Group: Structural Steel Subclass: AISI 4145H

Steel Notes: Chromium-Molybdenum H-Steel

chemical composition (%)

element-wise min-max approximation

C 0.4200 0.4900

Si 0.1500 0.3500

Mn 0.6500 1.1000

P max 0.0350

S max0.0400

Cr 0.7500 1.2000

Mo 0.1500 0.2500