4340 steel

4340 30CrNiMo8 1.6580 Alloy Steel Seamless Round Tube

ASTM A519 Grade Chromoly 4340 Seamless Alloy Steel Tube info@fushunsteeltube.com

AISI SAE 4340 30CrNiMo8 DIN 1.6580 Hot Forged Alloy Steel Round Bar

US $1500

Model:AISI SAE 4340 30CrNiMo8 DIN 1.6580