BBN steel supply ASTM A516 pressure vessel steel plates with full steel grade levels and sizes. Among those A516 steel grades, A516 grade 60 and A516 grade 70 are used most. So a lot of questions such as A516 grade 60 VS grade 70 steel and so on about the two A516 steel grades are asked about. Below is analysis about A516 grade 60 VS grade 70 steel in properties and equivalents.
Chemical composition comparison: A516 grade 60 VS grade 70 steel
| Steel grade | Maximum C for Thickness t(mm) | Mn forthickness t(mm) | Si | P max | S max | ||||
| 6 ≤ t≤ 12.5 | 12.5<t≤25 | 25<t≤50 | 50<t ≤ 63 | t<12.5 | t>12.5 | ||||
| A516 grade 60 | 0.21 | 0.23 | 0.23 | 0.25 | 0.60-0.90 | 0.85-1.20 | 0.13-0.45 | 0.035 | 0.035 |
| A516 grade 70 | 0.27 | 0.28 | 0.28 | 0.30 | 0.85-1.20 | 0.85-1.20 | 0.13-0.45 | 0.035 | 0.035 |
Mechanical property comparison: A516 grade 60 VS grade 70 steel
| ASTM A516 | Tensile strength(MPa) | Minimum yield strength (MPa) | Minimum elongation (%) In agauge length of: | |
| 50mm | 200mm | |||
| A516 grade 60 | 415-550 | 220 | 25 | 21 |
| A516 grade 70 | 485 | 260 | 21 | 17 |
Equivalent steel grades comparison: A516 grade 60 VS grade 70 steel
| ASTM | ASME | DIN 17155 | EN 10028 | BS1501 | |
| A516 grade 60 | SA516 grade 60 | HII | P265GH | 1.0425 | 161 430A |
| A516 grade 70 | SA516 grade 70 | P355GH | 224-490 A & B | ||
From above A516 grade 60 VS grade 70 steel in properties and equivalents, we can clearly understand the difference between A516 grade 60 and A516 grade 70 steel. The strength of A516 grade 70 steel is obviously higher than A516 grade 60 steel, so A516 grade 70 steel price is also higher theoretically.
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