ASTM A653M

What is ASTM A653M?

This Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process ASTM A653M specification covers steel sheet, zinc-coated (galvanized) or zinc-iron alloy-coated (galvannealed) by the hot-dip process in coils and cut lengths. ASTM A653M  

ASTM A653M Equivalent

Chinese standard: GBT 2518-2008 European standard: EN10147 Japanese standard: JIS G3302  

What is G30 VS G90?

 G90 refers to the average minimum weight of the galvanized sheet measured at three points on both sides of 0.9oz/ft2, which is the SI unit of 275g/m2. The conversion relation between them is 1oz=0.0284kg, so 0.9oz=0. 02556kg=25.56g 1ft2=0.093m2 25.56g/0.093m2=275g/m2.   The correspondence between the G and Z labels is as follows: G90——Z275 G75——Z230 G70——Z215 G65——Z200 G60——Z180 G50——Z150 G40——Z120 G30——Z90  

ASTM A653M Classification

Grade Application
CS Type A B and C Commercial
FS Type A and B Forming
DDS Deep Drawing
EDDS Extra Deep Drawing
SS Structual
HSLAS Type A High Strength
HSLAS Type B High Strength

ASTM A653M Chemical Composition

The typical Chemical Composition for CS (Types A, Band C), FS (Types A and B), DDS (Types A and C), and EDDS sheet designations are listed in Below Table (units:%):
Grade C Mn P S
CS Type A 0.10max. 0.60max 0.03max. 0.035max.
CS Type B 0.15max. 0.60max 0.03max. 0.035max.
CS Type C 0.08max. 0.60max 0.10max. 0.035max.
FS Type A 0.10max. 0.50max 0.02max. 0.035max.
FS Type B 0.10max. 0.50max 0.02max. 0.030max.
DDS Type A 0.06max. 0.50max 0.02max. 0.025max.
DDS Type C 0.02max. 0.50max 0.10max. 0.025max.
EDDS 0.02max. 0.40max 0.02max. 0.020max.
The typical Chemical Composition for SS, HSLAS, HSLAS-F, SHS and BHS sheet designations are listed in Below Table (units:%):
Grade C Mn P S
SS Type 33 0.20max. 1.35max 0.10max. 0.04max.
SS Type 37 0.20max. 1.35max 0.10max. 0.04max.
SS Type 40 0.25max. 1.35max 0.10max. 0.04max.
SS Type 50 Class 1,2,4 0.25max. 1.35max 0.20max. 0.04max.
SS Type 50 Class 3 0.25max. 1.35max 0.04max. 0.04max.
SS Type 55 0.25max. 1.35max 0.04max. 0.04max.
SS Type 60 0.25max. 1.35max 0.04max. 0.04max.
SS Type 70 0.25max. 1.35max 0.04max. 0.04max.
SS Type 80 Class 1 0.20max. 1.35max 0.04max. 0.04max.
SS Type 80 Class 2 0.02max. 1.35max 0.05max. 0.02max.
SS Type 80 Class 3 0.20max. 1.35max 0.04max. 0.04max.
 
Grade C Mn P S
HSLAS Type 40 0.20max. 1.20max 0.035max.
HSLAS Type 50 0.20max. 1.20max 0.035max.
HSLAS Type 55 Class 1 0.25max. 1.35max 0.035max.
HSLAS Type 55 Class 2 0.15max. 1.20max 0.035max.
HSLAS Type 60 0.20max. 1.35max 0.035max.
HSLAS Type 70 0.20max. 1.65max 0.035max.
HSLAS Type 80 0.20max. 1.65max 0.035max.
 
Grade C Mn P S
HSLAS-F Type 40 0.15max. 1.20max 0.035max.
HSLAS-F Type 50 0.15max. 1.20max 0.035max.
HSLAS-F Type 55 Class 1 0.20max. 1.35max 0.035max.
HSLAS-F Type 55 Class 2 0.15max. 1.20max 0.035max.
HSLAS-F Type 60 0.15max. 1.20max 0.035max.
HSLAS-F Type 70 0.15max. 1.65max 0.035max.
HSLAS-F Type 80 0.15max. 1.65max 0.035max.
SHS 0.12max. 1.50max 0.12max. 0.030max.
BHS 0.12max. 1.50max 0.12max. 0.030max.
 

ASTM A653M Mechanical properties

 

Tensile test characteristics

Table 1
Grade Yield strength Tensile strength Elongation %
N/mm2 N/mm2  
 
CS Type A 170/380 20Min
CS Type B 205/380 20Min
CS Type C 170/410 15Min
FS Type A 170/310 26Min
FS Type B 170/310 26Min
DDS Type A 140/240 32Min
DDS Type C 170/280 32Min
EDDS 105/170 40Min
NOTE : 1 N/mm2 = 1 MPa Table 2
Grade Yield strength Tensile strength Elongation
N/mm2 N/mm2 %
 
SS Type 33 230 Min 310 Min 20 Min
SS Type 37 255 Min 360 Min 18 Min
SS Type 40 275 Min 380 Min 16 Min
SS Type 50 Class 1 340 Min 450 Min 12 Min
SS Type 50 Class 2 340 Min 12 Min
SS Type 50 Class 3 340 Min 480 Min 12 Min
SS Type 50 Class 4 340 Min 410 Min 12 Min
SS Type 55 380 Min 480 Min 11 Min
SS Type 60 410 Min 480 Min 10 Min
SS Type 70 480 Min 550 Min 9 Min
SS Type 80 Class 1 550 Min 570 Min
SS Type 80 Class 2 550 Min 570 Min
SS Type 80 Class 3 550 Min 570 Min 3 Min
NOTE: 1 N/mm2 = 1 MPa Table 3
Grade Yield strength Tensile strength Elongation
N/mm2 N/mm2 %
 
HSLAS Type 40 275 Min 340 Min 22 Min
HSLAS Type 50 340 Min 410 Min 20 Min
HSLAS Type 55 Class 1 380 Min 480 Min 16 Min
HSLAS Type 55 Class 2 380 Min 450 Min 18 Min
HSLAS Type 60 410 Min 480 Min 16 Min
HSLAS Type 70 480 Min 550 Min 12 Min
HSLAS Type 80 550 Min 620 Min 10 Min
NOTE: 1 N/mm2 = 1 MPa Table 4  
Grade Yield strength Tensile strength Elongation
N/mm2 N/mm2 %
 
HSLAS-F Type 40 275 Min 340 Min 24 Min
HSLAS-F Type 50 340 Min 410 Min 22 Min
HSLAS-F Type 55 Class 1 380 Min 480 Min 18 Min
HSLAS-F Type 55 Class 2 380 Min 450 Min 20 Min
HSLAS-F Type 60 410 Min 480 Min 18 Min
HSLAS-F Type 70 480 Min 550 Min 14 Min
HSLAS-F Type 80 550 Min 620 Min 12 Min
NOTE: 1 N/mm2 = 1 MPa   Table 5
Grade Yield strength Tensile strength Elongation
N/mm2 N/mm2 %
 
SHS-180 180 Min 300 Min 32 Min
SHS-210 210 Min 320 Min 30 Min
SHS-240 240 Min 340 Min 26 Min
SHS-280 280 Min 370 Min 24 Min
SHS-300 300 Min 390 Min 22 Min
NOTE: 1 N/mm2 = 1 MPa   Table 5
Grade Yield strength Tensile strength Elongation
N/mm2 N/mm2 %
 
BHS-180 180 Min 300 Min 30 Min
BHS-210 210 Min 320 Min 26 Min
BHS-240 240 Min 340 Min 24 Min
BHS-280 280 Min 370 Min 22 Min
BHS-300 300 Min 390 Min 20 Min
NOTE: 1 N/mm2 = 1 MPa    

Thickness Tolerances

  Tolerances on product thickness
Thickness(mm)  allowable deviation Width
Up Down ≤1000 >1000~≤1300
0.1 0.03 0.03
0.15 0.04 0.04
0.2 0.05 0.05
0.25 0.05 0.05
0.3 0.03
0.4 0.04 0.04
0.5 0.08 0.08
0.5 0.045 0.05
0.6 0.05 0.05
0.75 0.1 0.1
0.8 0.05 0.05
1 0.13 0.13
1 0.055 0.06
1.2 0.08 0.08
1.25 0.13 0.13
1.5 0.08 0.08
1.75 0.15 0.15
2 0.18 0.18
2 0.1 0.1
2.25 0.2 0.2
2.5 0.23 0.23
2.5 0.1 0.11
2.75 0.25 0.25
3 0.25 0.25
3 0.13 0.13
3.25 0.3 0.3
3.5 0.3 0.3
3.75 0.36 0.36
4 0.36 0.36
4 0.17 0.17
4.99 0.36 0.36
5 0.17 0.17
6 0.17 0.2
8 0.17 0.22
This article describes ASTM A653 specifications, classification, advantages, and equivalent specifications. Hope it will be helpful to you.  
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