Tel : 0086-0371-86172891
Tel : 0086-0371-86172891
ASK:
ANSWER: GMW3399 is the specification covers the requirements for continuous cast, hot rolled or hot rolled steel sheet with specified tensile strength from 450MPa through 1700MPa.
GMW3399 HR780T/450Y-DP is hot rolled uncoated and coated steel coil or sheet , dual phase(ferrite+martensite) (DP) quality.
HR780T/450Y-DP is dual phase quality steel. The delivery condition of HR780T/450Y-DP steel can be common hot rolled( non coated), and Hot galvanized (coated).
“HR” means hot rolled, “780T” means min tensile strength is 780MPa, “450Y” means min yield strength is 450MPa.
The exact mechanical property requirements of HR780T/450Y-DP is : Yield strength: 450-610MPa, tensile strength is Min 780 MPa, total Elongation in 80mm is min 14%, n value (4%-6%) is min 0.16, BH2 is min 30MPa
