A515 gr.70 steel and A516 gr.70 steel differences
Katalor Industry can supply A515 gr.70 pressure vessel plate, A515 gr.70 steel plate and A516 gr.70 boiler steel products with large quantity. We have 5000 tons hot rolled pressure vessel plates in stock. For any inquiry, pls send email to us.
Both A515 gr.70 steel and A516 gr.70 steel are carbon steel plates for pressure vessels. What are the differences between them?
Below are the details that introduce these differences in chemical composition, tensile requirement and application.
The chemical composition comparison
A515 gr.70 steel composition(%)
C |
Mn |
P |
S |
Si |
||||
|
t≤25 |
25<t≤50 |
50<t≤100 |
100<t≤200 |
200<t |
||||
|
0.31 |
0.33 |
0.35 |
0.35 |
0.35 |
1.20 max |
0.035 max |
0.035 max |
0.15~0.40 |
A516 gr.70 steel composition(%)
Maximum C for thickness t (mm) |
Mn % for thickness t (mm) |
Si |
P max |
S max |
||||
|
6-12.5mm |
12.5-25mm |
25-50mm |
>50mm |
≤12.5mm |
>12.5mm |
|||
|
0.27 |
0.28 |
0.28 |
0.3 |
0.85-1.20 |
0.85-1.20 |
0.13-0.45 |
0.035 |
0.035 |
Tensile requirement
A515 gr.70 steel mechanical properties
Yield strength |
Tensile strength |
Elongation |
|
|
ksi(N/mm²) |
ksi(N/mm²) |
||
|
38 (260) min |
70~90(485~620) |
8 in. [200 mm], min, % |
17 min |
|
2 in. [50 mm], min, % |
21 min |
||
A516 gr.70 steel mechanical properties
Grade |
Tensile strength |
Minimum yield strength |
Minimum elongation (%) |
|
|
(MPa) |
(MPa) |
50mm |
200mm |
|
|
A516 grade 70 |
485 - 620 |
260 |
21 |
17 |
Application
A515 gr.70 carbon-silicon steel plates are primarily for intermediate- and higher-temperature service in welded boilers and other pressure vessels.
A516 gr.70 carbon steel plates are intended primarily for service in welded pressure vessels in moderate- and lower-temperature service.
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