Product Standards

Available Sizes & Mechanical Properties

Division POSCO
Pure-Zn Zn-Ni Bend Test
Bend Angle Radius of Flexure
Class 1 EGSC ENSC 180° Completely Conatact
Class 2 EGSD ENSD
Class 3 EGSP ENSP
EGSN ENSN
EGSE ENSE
Structural Quality* EG37 EN37 2.0 Times the Sheet Thickness
High Tensile Steel* EGCHSP60TR ENCHSP60TR 2.0 Times the Sheet Thickness
EGCHSP35R ENCHSP35R Completely Conatact
EGCHSP40R ENCHSP40R
EGCHSP35E ENCHSP35E
EGCHSP38E -

Note)*Marked Dimensions should be determined after an advance consultation with us.

POSCO Corresponding Dimensions
Mechanical Properties Notes JIS/KS ASTM
YP(Mpa) TS(Mpa) EL(%)
- ≧270 ≧37 Shallow Drawing Quality SECC A591-CQ
- ≧270 ≧28 Drawing Quality SECD A591-DQ
- ≧270 ≧40 Deep Drawing Quality - -
- ≧270 ≧40 Non-aging Deep Drawing Quality SECE(N) A591-DQSK
- ≧270 ≧46 Non-aging Extra-Deep Drawing Quality - -
(≧270) ≧360 ≧20 Structural Quality(37kg Grade) - -
≧350 ≧590 ≧17 Commercial Quality(60kg Grade) - -
≧180 ≧340 ≧34 Drawing Quality(35kg Grade) - -
≧220 ≧390 ≧31 Drawing Quality(40kg Grade) - -
≧160 ≧340 ≧34 Deep Drawing Quality(35kg Grade) - -
≧200 ≧370 ≧33 Deep Drawing Quality(38kg Grade) - -
Note)
  • 1. It is necessary to consult with us for the value in the ( ).
  • 2. Please consult with us additionally, if you want some high tensile steel sheets in the corresponding dimensions.

KS & JIS Standards

Two types of zinc coating weights, that is, the same weight on both sides and differentiated weights on each side, are applied to the steel sheets and steel coils. The standard and minimum Zn coating weights are marked with a code combining the coating weight of each side while dividing two weights with a slash (/). The marking methods are as follows.

For Steel Sheets
Minimum coating weights on the“ top/bottom”sides (e.g.: E16/E16)
For Steel Coils
Minimum coating weights on the“ outer /inner”surfaces of coil (e.g.: E8/E16)

When attaching a label indicating an application of“ differentiated coating weights”on two sides of the steel sheets or coils, a letter “D” is written after the minimum coating weight code on the surface with the label.(e.g.: 30/10D)

Zn Coating Weight Marking Codes Minimum Zn Coating Weight (One Side) Standard Coating Weight Corresponding Zinc Thickness(mm) / One Side
Both-Sided Coating Single Side,
Differential Galvanizing
EB 2.5 - 3 0
E8 8.5 8.0 10 0.001
E16 17.0 16.0 20 0.003
E24 25.5 24.0 30 0.004
E32 34.0 32.0 40 0.005
E40 42.5 40.0 50 0.006
Note)
  • 1. Coating Weight Marking Codes exceeding 1.40g/m2 and Minimum Coating Weight are determined with an agreement between an orderer and a manufacturer
  • 2. The thickness codes of Electro-galvanized steel sheets are written down to the first place below decimal point by using the Zn Content level, 7.1g g/cm2, referring to KSA 0021 (the Rounding-off Method).

ASTM Standards

Division Minimum Value (3) Points Minimum Value (1) Points
Coating Weight Both Side Coating Weight Both Side
oz/ft2 g/m2 oz/ft2 g/m2
A - - - -
B 0.08 24 0.07 22
C 0.16 48 0.15 0.003