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ASTM F568 Specification : ASTM F568 Grade Class 10.9.3 Bolts
ASTM F568 Specification covers Grade 10.9.3 Bolts/Screws/Studs manufactured from corrosion resistant steel in quenched & tempered confition within size range of M5 upto M100 & minimum Tensile Strength of 1040 Mpa.
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| Grade 10.9.3 | Atmospheric corrosion resistant steel ; Quench and Tempered |
|---|
| Markings & Mechanical Prperties | ||||||
|---|---|---|---|---|---|---|
| Grades | Markings | Size Range | PS [MPa] | YS (min) [MPa] | TS (min) [MPa] | Hardness [Rockwell] |
| Class 10.9.3 |  | 5–100 | 830 | 940 | 1040 | C33–39 |
Grades Material Description
| Grade 4.6 | Low or medium carbon steel |
|---|---|
| Grade 4.8 | Low or medium carbon steel; fully or partially annealed |
| Grade 5.8 | Low or medium carbon steel; Cold worked |
| Grade 8.8 | Medium Carbon Boron Steel ; Quenched & Tempered |
| Low carbon Grade 8.8 | Low Carbon Boron Steel ; Quenched & Tempered |
| Grade 8.8.3 | Atmospheric corrosion resistant steel ; Quench and Tempered |
| Grade 9.8 | Medium Carbon Boron Steel ; Quenched & Tempered |
| Low carbon Grade 9.8 | Low Carbon Boron Steel ; Quenched & Tempered |
| Grade 10.9 | Quenched & Tempered ; Alloy Steel |
| Low Carbon Grade 10.9 | Low Carbon Boron Steel ; Quenched & Tempered |
| Grade 10.9.3 | Atmospheric corrosion resistant steel ; Quench and Tempered |
| Grade 12.9 | Quenched & Tempered ; Alloy Steel |
Markings & Mechanical Prperties
| Markings & Mechanical Prperties | ||||||
|---|---|---|---|---|---|---|
| Grades | Markings | Size Range | PS [MPa] | YS (min) [MPa] | TS (min) [MPa] | Hardness [Rockwell] |
| Class 4.6 |  | 5–100 | 225 | 240 | 400 | B67–95 |
| Class 4.8 |  | 1.6–16 | 310 | 340 | 420 | B71–95 |
| Class 5.8 |  | 5–24 | 380 | 420 | 520 | B82–95 |
| Class 8.8 |  | 0.050% | 600 | 660 | 830 | C23–34 |
| Low carbon Class 8.8 |  | 17–72 | 600 | 660 | 830 | C23–34 |
| Class 8.8.3 |  | 17–72 | 600 | 660 | 830 | C23–34 |
| Class 9.8 |  | 1.6–16 | 650 | 720 | 900 | C27–36 |
| Low carbon Class 9.8 |  | 1.6–16 | 650 | 720 | 900 | C27–36 |
| Class 10.9 |  | 5–100 | 830 | 940 | 1040 | C33–39 |
| Low Carbon Class 10.9 |  | 5–100 | 830 | 940 | 1040 | C33–39 |
| Class 10.9.3 | | 5–100 | 830 | 940 | 1040 | C33–39 |
| Class 12.9 |  | 1.6–100 | 970 | 1100 | 1220 | C38–44 |
Grade Class 10.9.3 Bolts Application Industries
Sunflex Metal Industries are engaged in manufacturing of robust quality of Grade Class 10.9.3 Bolts. These Grade Class 10.9.3 Bolts are widely used in the following industries:
Mining Industries Transport Industries- Rail and Road Construction Industries / Building Systems Manufacturing Industries Agriculture Industries Energy Industries Water Industries Automotive Industries Ship Building Industries Nuclear Power Plant Paper & Pulp Industries Sugar Industries Engineering Cement Industries Petro-Chemical Industries Food Industries Oil & Gas Industries Chemical & Pharmaceutical Industries
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