Sechang Steel Co,. Ltd.

Alu-zinc Alloy Coated Steel Sheet & Coil (GALVALUME)

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Sechang Steel Co,. Ltd.
[Korea]

Address
662 Gasul-ri, Daesan-myeon, Uichang-gu Changwon Gyeongsangnam-do
Phone
82-55-2535670
Contact name
Eunkyung Kim

Quick Information

  • Brand Name: POSCO C&C, DONGBU STEEL, UNION STEEL
  • Place of Origin: Korea
  • Model Number : ASTM A792, ASTM A792M, EN 10215, JIS G3321
  • Thickness : 0.25 mm ~ 2.3 mm

Description

ASTM A792 / A792M-097

Standard Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-Coated by the Hot Dip Process>

Scope

  • This specification covers 55% aluminum-zinc alloy- coated steel sheet in coils and cut lengths.
  • This product is intended for applications requiring corrosion resistance or heat resistance, or both.
  • This product is produced in a number of designations, types, and grades which are designed to be compatible with differing application requirements.

Terminology

  • Definitions-See Terminology A902 for definitions of general terminology relating to metallic-coated hot-dip products.
  • Definition of Term Specific to This Standard.
  • Regular spangle-the unaltered 55% aluminum-zinc(Al-Zn) crystal structure that occurs during normal solidification of a hot-dip coated steel sheet.

Classification

  • The material is available in several designations, as follows;
  • Commercial Steel-CS Type A, B, and C,
  • Forming Steel-FS
  • Drawing Steel-DS
  • High Temperature Steel-HTS, and}
  • Structural Steel-SS.
  • Structural steel is available in several grades based on yield strengths and tensile strength.
  • The product is available in several coating weights [masses]with the coating designation.

Coating Designation and Minimum Coating Test Limits

Coating Designation

Triple-spot Test
min.g/m2 min oz/ft2

Sing-Spot Test min g/m2 min oz/ft2

AZM 150 AZ 50

150 0.50

130 0.43

AZM 165 AZ 55

165 0.55

150 0.50

AZM 180 AZ 60

180 0.60

155 0.52

EN 10215/1995

Continuously Hot-Dip Aluminum-(AZ)Coated Steel Sheet and Strip(Technical Delivery Conditions)

1. Grades and Mechanical Properties of Low Carbon steels for Cold Forming

Designation

Yield Strength Re
N/mm2
max.1) 2) 3)

Tensile Strength
Re
N/mm2
max.1) 3)

Elongation
A80
%
min.1) 4)

Steel Grade

Symbol for the
Type of Hot-Dip
Coating

steel Name

Steel Number

D X 51D

1.0226

+AZ

-

500

22

D X 52D

1.0350

+AZ

3005)

420

26

D X 53D

1.0355

+AZ

260

380

30

D X 54D

1.0306

+AZ

220

350

36

1) The values apply to transverse test pieces
2) The yield strength values apply to the 0.2% proof stress if the yield point is not pronounced, otherwise to the lower yield strength(ReL)
3) For all steel grades a minimum value of 140 N/mm2 for the yield strength (Re) and of 270 N/mm2 for the tensile strength (Rm) may be expected
4) For product thickness <0.7mm the minimum elongation values(A80)shall be reducedby 2 units
5) This value applies to skin passed products only(surface qualities B and C)

2.Grades and Mechanical Properties of Structural Steels

Designation
Yield Strength Re
N/mm2
max.1) 2) 3)
Tensile Strength
Re
N/mm2
max.1) 3)
Elongation
A80
%
min.1) 4)
Steel Grade
Symbol for the
Type of Hot-Dip
Coating
steel Name
Steel Number
S250GD+AZ
1.0242
+AZ
250
330
19
S250GD+AZ
1.0244
+AZ
280
360
18
S250GD+AZ
1.0250
+AZ
320
390
17
S250GD+AZ
1.0529
+AZ
350
420
16
S250GD+AZ
1.0531
+AZ
550
560
 

1) The values apply to transverse test pieces
2) The yield strength values apply to the 0.2% proof stress if the yield point is not pronounced, otherwise to the upper yield strength(ReH)
3) For product thickness < 0.7mm the minimum elongation values(A80) shall be reduced by 2 units

3. Coating Mas

Coating Designation
Minimum Coating Mass, g/m2 Total Both Surfaces
Triple Spot Test
Single Spot Test
100
100
85
150
150
130
185
185
160

1) A coating mass of 100 g/m2 corresponds go a coating thickness of approximately 13.3µm on

Specific uses

  • Industrial
  • Roofing material Internal Wall Ceiling Fence
  • Muffler Exhaust Silence Boxes Tail pipe Oil filter Tube Hose Clamp Brake Pad Cover
  • Banding machine Washing machine Microwave ovens

Packaging & Delivery

  • Packing :standard steel packing
  • Minimum Order : 20MT / 20ft 1 container

Product Image

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