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ASTM A573-05 Structural Carbon Steel Plates of Improved Toughness
USI mainly provide flat steel (HRC, HR Plate, CRC, GI, GL,PPGI, etc.), long steel (billet, deformed bar, wire rod, round bar, pipe, etc.) and special steel (high- tensile steel & stainless steel) to end consumers、distributors & trading houses in the world.
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ASTM A573-05 Structural Carbon Steel Plates of Improved Toughness
| Grade | Thickness | Chemical Compositions % | Tension Test | |||||||
| C | Si | Mn | P | S |
Yield Point ksi (N/mm²) |
Tensile Strength ksi (N/mm²) |
Elongation | |||
|
Test piece in(mm) |
% min |
|||||||||
| Gr.58 | t≤38.1 | 0.23 Max | 0.10-0.35 | 0.60-0.90 | 0.035 Max | 0.040 Max |
32(220) min |
58-71 (400-490) |
GL=8(200) GL=2(50) |
21 24 |
| Gr.65 | t≤12.70 | 0.24 Max | 0.15-0.40 | 0.85-1.20 |
35(240) min |
65-77 (450-530) |
GL=8(200) GL=2(50) |
20 23 |
||
| 12.7<t≤38.10 | 0.26 Max | |||||||||
| Gr.70 | t≤12.70 | 0.27 Max |
42(290) min |
70-90 (485-620) |
GL=8(200) GL=2(50) |
18 21 |
||||
| 12.70<t≤38.10 | 0.28 Max | |||||||||
Remarks
1. For plates wider than 24 in.(600mm), the elongation requirement is reduced two percentage points. See elongation requirement adjustments in the Tension Tests Section of Specification A6/A6M.
2. The upper limit of manganese for Gr.58 may be exceeded, provided that the carbon content plus 1/6 manganese content does not exceed 0.40% based on heat analysis.
3. Gr.58,65 for each reduction of 0.01% below the specified carbon maximum, an increase of 0.06% manganese above the specified maximum is permitted, up to a maximum of 1.50% and 1.60% for Grades 70.
Key words：
Long Products / Flat Products / Special Products
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