HCT780X is a dual phase high-strength cold-rolled automotive steel plate, with the following chemical composition and mechanical properties:
The equivalent steel grades are: HC420/780DPD+Z, HC420/780DPD+ZF, HC420/780DP, B400/780DP, B400/780DP, HCT780X, CR780T/420Y-DP, DP 780T/420Y Wait.
HCT780X (1.0943), Grade: HCT780X, Number: 1.0943, Classification: Alloy quality steel
Standard:
EN 10336: 2006 Continuously hot dip coated and electrically coated strip and sheet of multiple steels for cold forming Technical delivery conditions
EN 10346: 2009 Continuously hot dip coated steel flat products Technical delivery conditions
Equivalent grades:
HC420/780DPD+Z, HC420/780DPD+ZF, HC420/780DP, B400/780DP, B400/780DP, HCT780X, CR780T/420Y-DP, DP 780T/420Y
Chemical composition% of steel HCT780X (1.0943): EN 10336-2006
2.Si, Mn, P, S, V, Al, B, – max 0.18, max 0.8, max 2.5, max 0.08, max 0.015, max 0.2, max 2, max 0.005, Cr+Mo<1, Nb+Ti<0.15
Mechanical properties
Mechanical properties yield strength 440-550
Tensile strength 780
Elongation after fracture 14%
Heat treatment conditions
+A Soft annealed
+AC Annealed to achieve spheroidization of the carbides
+AR As rolled
+AT Solution annealed
+C Cold drawn / hard
+CR Cold rolled
+FPT reated to ferrite-pearlite structure and hardness range
+II sothermal annealing
+LC Cold drawn / soft
+M Thermo mechanical rolling
+N Normalized
+NT Normalized and tempered
+P Precipitation hardened
+PE Peeled
+QA Air quenched and tempered
+QL Liquid quenched and tempered
+QT Quenched and tempered
+S Treated to improve shearability
+SH As rolled and turned
+SR Cold drawn and stress relieved
+T Tempered
+TH Treated to hardness range
+WW Warm worked
+U Untreated
Alloy quality steel
Chemical composition of steel HCT780X (1.0943), Standards of steel HCT780X (1.0943)
Mechanical Properties of steel HCT780X (1.0943) steel HCT780X (1.0943) Tensile Strength, Elongation, Proof strength , Hardness
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Post time: Dec-25-2023