ASTM A299 Gr.B material is a kind of carbon steel material for use in welded boilers and other pressure vessels. Based on A299 higher C, Mn, and Si composition, A299 Gr.B steel material is widely used to fabric pressure vessel. There are two steel grades in the standard ASTM A299/ASME SA299 , and they are A299 Grade A, A299 Grade B.
Standard: ASTM A299/ASME SA299
Steel Grade : A299 Gr.A, ASTM A299 Gr.B
ASTM A299 Gr.B Steel Plate Size
Thickness :1.5mm -260mm
Width :1000mm-4000mm
Length :1000mm-18000mm
MOQ: 5 PC
ASTM A299 Gr.B Steel Chemical Requirement
Grade
|
The Element Max (%)
| |||||
C
|
Si
|
Mn
|
P
|
S
|
Mo
| |
A299 Gr.B
|
0.28-0.30
|
0.13-0.45
|
0.84 -1.62
|
0.035
|
0.035
|
-
|
ASTM A299 Gr.B Steel Mechanical Properties
Grade
|
Thickness
|
Yield
|
Tensile
|
Elongation
|
A299 Gr.B
|
t≦50
|
310-325
|
550-690
|
19
|
50<t≦200
|
310-325
|
550-690
|
19
|
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