DX51D+Z275 Meaning
DX51D is a European standard, galvanized with 51 steel coil raw materials, equivalent to SGCC.
DX51D+Z275 refers to hot-dip galvanizing. Hot-dip galvanizing is coated with a layer of zinc. 275 represents 275 grams of zinc.
The substrate used in hot-dip galvanizing is cold-rolled, and the zinc plating on the cold-rolled sheet is called galvanizing. Ordinary hot-dip galvanizing is 80 grams. 140 and 275 are high zinc layers, and the purpose of hot-dip galvanizing is to prevent the steel from rusting.
DX51D+Z275 MAC:
Z275 zinc layer quality 275g/㎡ (double-sided)
M without spangle
A Normal surface
C Passivation treatment
Chemical composition of DX51D steel, %
С | Si | Mn | P | S | Ti |
≤0.18 | ≤0.5 | ≤1.2 | ≤0.12 | ≤0.045 | ≤0.03 |
Mechanical properties of DX51D steel
Nominal gauge, mm | Minimum yield strength, ReH (MPa) | Minimum elongation ratio, % |
0.57-2.00 | 270-500 | 22 |
Equivalent to DX51D steel
US (AISI, ASTM, ASME) | ASTM A653/A653M Class B |
Germany (DIN) | 1.0322, 1.0335, DC01, DC04, DC04G1, DD11, DD13, St12, St14, St22, StW24, USt3, USt4 |
