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ANSWER: GMW3399 is the specification covers the requirements for continuous cast, hot rolled or cold rolled steel sheet with specified tensile strength from 450MPa through 1700MPa.
GMW3399 CR900T/700Y-MS is cold rolled uncoated and coated steel coil or sheet , Martensitic(MS) quality.
CR900T/700Y-MS is Martensitic quality steel. The delivery condition of CR900T/700Y-MS steel can be common cold rolled( non coated), and Hot galvanized (coated).
“CR&rdquo means cold rolled, “900T&rdquo means min tensile strength is 900MPa, “700Y&rdquo means min yield strength is 700MPa.
The exact mechanical property requirements of CR900T/700Y-MS is : Yield strength: 700-1000MPa, tensile strength is 900-1100MPa, total Elongation in 80mm is min 3.0%, Bending radius longitudinal and transverse is min 4.0t
