Both A515 gr 65 steel and A516 gr 65 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 65 steel composition(%)
C |
Mn |
P |
S |
Si |
|
t≤25 |
25<t≤50 |
50<t≤100 |
100<t≤200 |
200<t |
|
0.28 |
0.31 |
0.33 |
0.33 |
0.33 |
0.90 max |
0.035 max |
0.035 max |
0.15~0.40 |
A516 gr 65 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 |
|
0.24 |
0.26 |
0.26 |
0.28 |
0.85-1.20 |
0.85-1.20 |
0.13-0.45 |
0.035 |
0.035 |
Tensile requirement comparison
A515 gr 65 steel mechanical properties
Grade |
Yield strength |
Tensile strength |
Elongation |
|
ksi(N/mm²) |
ksi(N/mm²) |
|
A515 grade 65 |
35 (240) min |
65~85 (450~585) |
8 in. [200 mm], min, % |
19 min |
|
2 in. [50 mm], min, % |
23 min |
A516 gr 65 steel mechanical properties
Grade |
Tensile strength |
Minimum yield strength |
Minimum elongation (%) gauge length |
|
(MPa) |
(MPa) |
50mm |
200mm |
|
A516 grade 65 |
450 - 585 |
240 |
23 |
19 |
The application comparison
A515 gr 65 carbon-silicon steel plates are primarily for intermediate- and higher-temperature service in welded boilers and other pressure vessels.
A516 gr 65 carbon steel plates are intended primarily for service in welded pressure vessels in moderate- and lower-temperature service.
Katalor Industry can supply A515 gr 65 pressure vessel plate, A515 gr.70 steel plate and A516 gr 65 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.
