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Technical Specification :
| ASTM A 515 |
Grade 60 |
C ma x 0.27 |
Mn ma x 0.9 |
P max 0.04 |
S max 0.04 |
Si max 0.15.04 |
Ni | Cr | Mo | ||||
| 70 | 0.33 | 1.2 | 0.04 | 0.04 | 0.15-0.40 | ||||||||
| A 516 | 60 | 0.23 | 0.85-1.20 | 0.04 | 0.04 | 0.15-0.40 | |||||||
| 70 | 0.28 | 0.85-1.20 | 0.04 | 0.4 | 0. 15-0.40 | ||||||||
| A 537 Class 1 0.02 0-70-1.35 0.04 0.04 0.15-0.40 0.25max 0.80 max 0.35max | |||||||||||||
| Class 2 | 0.24 | 0-70-1.35 | 0.04 | 0.04 | 0.15-0.40 | 0.25 max | 0.80 max | 0.35max | |||||
Mechanica L Requirements
| ASTM | Grade | Tensile Strength Apa (Ksi) Min. | Yield Strength Mpa (ksi}min | Elogation Min. % | Beninal Max HB | Rockwell Max HRB |
| A515 | 60 | 415-550/(60-80) | 220(32) | 25 | - | - |
| 70 | 485-620/(70-90) | 260(38) | 21 | - | - | |
| 60 | 415-550/(60-80) | 220(32) | 25 | - | - | |
| 70 | 485-620/(70-90) | 260(38) | 21 | - | - | |
| Class 1 | 485-620/(70-90) | 345(50) | 22 | - | - | |
| Class 2 | 550690/(80-100) | 415-60 | 22 | - | - |
Chemical Composition Of Sheets & Plates
| ASTM | Grade | C max | Mn max | P max | S max | Si max | Ni | Cr | Mo | |||||||||||||
| A387 | Class 1 | 5 | 0.15 | 0.30-0.60 | 0.04 | 0.03 | 0.5 | 4.00-6.00 | 0-45-0.65 | |||||||||||||
| Class 2 | 9 | 0.15 | 0.30-3.60 | 0.03 | 0.3 | 1 | 8.00-10.0 | 0.90-1.10 | ||||||||||||||
| 11 | 0.04-0.17 | 0.40-0.65 | 0.04 | 0.04 | 0.50-0.80 | 1.00-1.50 | 0-45-0.65 | |||||||||||||||
| 12 | 0.04-0.17 | 0.40-0.65 | 0.04 | 0.04 | o_ 15-0.40 | 0.80-1.15 | 0.45-0.60 | |||||||||||||||
| 22 | 0.05-0.17 | 0.30-0.60 | 0.04 | 0.035 | 0.5 | 2 .00-2 .50 | 0.90-1.10 | |||||||||||||||
Mechanical Requirements
| Mechenical Requirement | Hardness | |||||||
| ASTM | Grade | Tensil Strenght Apa (Ksi) Min. | Yeild Strenght Apa (Ksi) Min. | Elogation Min% | Brinel Max HB | Rockwell Max HRB | ||
| A387 | ||||||||
| Class -1 | Class – 2 | Class -1 | Class – 2 | |||||
| Class-1 | 5 | 415-585 | 515-690 | 205 | 310 | 18 | 202 | 92 |
| Class-2 | 9 | 415-585 | 515-690 | 205 | 310 | 18 | 217 | 95 |
| 11 | 415-585 | 515-690 | 240 | 310 | 22 | 217 | 95 | |
| 12 | 380-550 | 450-585 | 230 | 275 | 22 | 217 | 95 | |
| 22 | 415-585 | 515-690 | 205 | 310 | 18 | 201 | 92 | |