Application: Used for steel boiler plates and pressure vessel plates
Supplementary Technology: Includes UT (Ultrasonic Testing), AR (As Rolled), TMCP (Thermo-Mechanical Controlled Process), N (Normalized), Q+T (Quenched and Tempered), Z Direction Test (Z15, Z25, Z35), Charpy V-Notch Impact Test, HIC (Hydrogen-Induced Cracking) test, NDT (Non-Destructive Testing), PWHT (Simulated Post Weld Heat Treatment), NACE0175, and Third Party Tests (such as SGS Test).
Surface: Options for coated or shot blasting and painting
Delivery State: Available in both hot rolled and cold rolled conditions
Steel Grade: Options include Grade A, Grade B, and Grade C
This specification addresses alloy steel plates with manganese-molybdenum and manganese-molybdenum-nickel compositions, specifically designed for welded boilers and other pressure vessels. ASTM A302 is a low-alloy steel specification covering four distinct grades (A, B, C, D). Grades C and D include nickel in their chemical composition, and although Grade C shares the same thickness, yield, and tensile strength as Grade B, it exhibits a higher elongation rate. These plates are crafted for applications in pressure vessels, boilers, storage tanks, and heat exchangers within oil and gas projects.
ASTM A302 Chemical Composition:
ASTM A302 Chemical Composition
Steel Grade
The Element Max (%)
C
Si
Mn
P
S
Mo
Ni
A302 Grade A
0.20-0.25
0.13–0.45
0.87–1.41
0,035
0,035
0.41–0.64
A302 Grade B
0.20-0.25
0.13-0.45
1.07-1.62
0.035
0.035
0.41-0.64
A302 Grade C
0.20-0.25
0.13-0.45
1.07-1.62
0.035
0.035
0.41-0.64
0.37-0.73
A302 Grade D
0.20-0.25
0.13-0.45
1.07-1.62
0.035
0.035
0.41-0.64
0.67-1.03
ASTM A302 Mechanical Property:
Steel Grade
ASTM A302 Mechanical Property
Thickness
Yield
Tensile
Elongation
A302 Grade A
mm
Min Mpa
Mpa
Min %
6-50
310
515-655
19%
50-200
310
515-655
15%
A302 Grade B
6-50
345 Mpa
550-690 Mpa
18%
50-200
345 Mpa
550-690 Mpa
15%
A302 Grade C
6-50
50 [345]
80-100kis [550-690]Mpa
17%
50-200
20%
ASTM A302 Equivalent steel grade:
Steel Grade
Europe
Germany
France
Italy
U.K.
ASTM A302 Gr. A,B
14Cr Mo 45
13 Cr Mo 44
15 CD 4.05
14 Cr Mo 46
620 Gr.27,31
If you are considering purchasing products made of ASTM A302 steel plate, please get in touch with us for the most up-to-date pricing. Alternatively, you can refer to the table below for the equivalent steel grades of ASTM A302.
