Cold Rolled Steel

Cold-rolled steel sheet is a metal sheet that is cold-rolled to hot-rolled billets at room temperature to improve surface quality,dimensional accuracy and mechanical properties. It is commonly used in automobiles,home appliances and construction.

HC700 980MS martensitic steel coils

Martensitic Cold Rolled Steel

Martensitic steel has high tensile strength and is the highest strength grade of high strength steel plate at present. Roll forming is usually used to produce or press simple shaped parts.

Grade Chemical Componenta %
C Si Mn P S
HC700/900MS ≤0.20 ≤0.6 ≤2.0 ≤0.020 ≤0.015
HC700/980MS ≤0.20 ≤0.6 ≤2.0 ≤0.020 ≤0.015
HC860/1100MS ≤0.25 ≤0.6 ≤2.0 ≤0.020 ≤0.015
HC950/1180MS ≤0.25 ≤1.0 ≤2.0 ≤0.020 ≤0.015
HC1030/1300MS ≤0.28 ≤1.0 ≤2.5 ≤0.020 ≤0.015
HC1150/1400MS ≤0.28 ≤1.0 ≤2.5 ≤0.020 ≤0.015
HC1200/1500MS ≤0.30 ≤1.0 ≤3.0 ≤0.020 ≤0.015
HC1350/1700MS ≤0.35 ≤1.0 ≤3.0 ≤0.020 ≤0.015

a Al, Nb, Ti, Cr, Mo, B and other alloying elements can be added as required, and the total amount of these alloying elements is not more than 1.5% at this time.

Grade YS Strength
(MPa)		 Tensile Strength
(MPa)		 Elongation % A50mm%
Not less than		 180° Bending Test
Dia≥
(a=sample thickness)
HC700/900MS 700~900 ≥900 4 6a
HC700/980MS 700~960 ≥980 4 6a
HC860/1100MS 860~1100 ≥1100 4 8a
HC950/1180MS 950~1200 ≥1180 4 8a
HC1030/1300MS 1030~1300 ≥1300 4 8a
HC1150/1400MS 1150~1400 ≥1400 3 8a
HC1200/1500MS 1200~1500 ≥1500 3 8a
HC1350/1700MS 1350~1700 ≥1700 3 8a

a RP0.2 is used when the yield phenomenon is not obvious, and ReL is used.

b The sample is P17 as specified in GB/T 228.1, and the direction of the sample is transverse. If the user has special requirements can be negotiated to determine.

c The specified value of the bending test is applicable to the transverse specimen, the width of the bending specimen b≥35mm. The sample width during the arbitration test was 35mm. If the supplier can guarantee it, it may not carry out bending test.