Steel type knowledge introduction[Read more]

Japanese steel grade representation method [Read more]

Japanese steel grade standard[Read more]

The German standard grade of steel representation method [Read more]

countries interstate standard mustInternational standard is refers to the international standards organization ISO an...[Read more]

No.Rockwell hardnessSurface rockwell hardnessVickers hardnessBrinell hardnessTensile strengthσb/MPaHRCHRAHR15NHR30NHR4...[Read more]

No.HSHRC196.668295.667.5394.667493.566.5592.666691.565.5790.565889.464.5988.4641087.663.51186.5631285.762.51384.8621484.061.51583....[Read more]

Commonly used materials approximate limit strength[Read more]

Carbon steel, also called plain-carbon steel, is steel where the main interstitial alloying constituent is carbon....[Read more]

Steel grade(ASTM)HBSHeat treatmentQuenching hardness ≥HRCAnnealingHard drawnC %Quenching temperature ℃Cooling mediumW...[Read more]