ASTM a516 grade 70 Steel Plate is often used in the construction of welded pressure vessels where improved notch toughness is important. It’s the most widely used material grade than other grades such as the ASTM A516 grade 60 steel plate. A range of specially manufactured hydrogen induced crack resistant steel in ASTM A516 grade 70 HIC is also available.
Maximum Thickness of ASTM A516 carbon steel plate
Maximum Thickness for ASTM A516 Steel Plate |
|
Grade U.S.[SI] |
Maximum Thickness, in.[mm] |
|
55[380] |
12[305] |
|
60[415] |
8[205] |
|
65[450] |
8[205] |
|
70[485] |
8[205] |
Chemical Requirements for ASTM A516 plate
Chemical Requirements for ASTM A516 pressure vessel plates |
|
Elements |
Grade 55 (380) |
Grade 60 (415) |
Grade 65 (450) |
Grade 70 (485) |
|
Carbon, max |
|
|
|
|
|
thk≤1/2in. (12.5mm) |
0.18 |
0.21 |
0.24 |
0.27 |
|
thk>1/2in.~2in. (>12.5~50mm) |
0.20 |
0.23 |
0.26 |
0.28 |
|
thk>2in.~4in.(50~100mm) |
0.22 |
0.25 |
0.28 |
0.30 |
|
thk>4in.~8in.(100~200mm) |
0.24 |
0.27 |
0.29 |
0.31 |
|
thk>8in.(200mm) |
0.26 |
0.27 |
0.29 |
0.31 |
|
Manganese, max |
|
|
|
|
|
thk≤1/2in. (12.5mm) |
|
|
|
|
|
Heat Analysis |
0.60-0.90 |
0.60-0.90 |
0.85-1.20 |
0.85-1.20 |
|
Product Analysis |
0.55-0.98 |
0.55-0.98 |
0.79-1.30 |
0.79-1.30 |
|
thk>1/2in. (12.5mm) |
|
|
|
|
|
Heat Analysis |
0.60-1.20 |
0.85-1.20 |
0.85-1.20 |
0.85-1.20 |
|
Product Analysis |
0.55-1.30 |
0.79-1.30 |
0.79-1.30 |
0.79-1.30 |
|
Phosphorous, max |
0.025 |
0.025 |
0.025 |
0.025 |
|
Sulfur, max |
0.025 |
0.025 |
0.025 |
0.025 |
|
Silicon |
|
|
|
|
|
Heat Analysis |
0.15-0.40 |
0.15-0.40 |
0.15-0.40 |
0.15-0.40 |
|
Product Analysis |
0.13-0.45 |
0.13-0.45 |
0.13-0.45 |
0.13-0.45 |
Ⅳ. Tensile Requirements of ASTM A516 carbon steel
|
|
55[380] |
60[415] |
65[450] |
70[485] |
|
Tensile Strength, ksi[Mpa] |
55-75[380-515] |
60-80[415-550] |
65-85[450-585] |
70-90[485-620] |
|
Yield Strength, min, ksi[Mpa] |
30[205] |
32[220] |
35[240] |
38[260] |
|
Elongation in 8 in.[200mm], min, % |
23 |
21 |
19 |
17 |
|
Elongation in 2 in.[50mm], min, % |
27 |
25 |
23 |
21 |
Heat Treatment
1. ASTM A516 plates 1.50 in. [40 mm] and under in thickness are normally supplied in the as-rolled condition. The plates may be ordered normalized or stress relieved, or both.
2. Plates to ASTM A516 carbon steel over 1.50 in. [40 mm] in thickness shall be normalized.
