Material: ASTM A193 B7, 4140, 42CrMoA
STANDARDS: GB/T 3098.1 ISO 898-1 OR AS CUSTOMER’S REQUIREMENTS
Mechanical Properties of Class 10.9 Bolt
| BOLT 10.9 | |||||
| D Nom | Diameter at smooth part | Pitch | Cross Section | Yield force | Ultimate force |
| mm | mm | mm | mm² | KN | KN |
| M36 | 33.23-33.29 | 4 | 817 | 768 | 735 |
| M39 | 36.23-36.29 | 4 | 976 | 917 | 878 |
| M42 | 38.90-38.96 | 4.5 | 1120 | 1052 | 1008 |
| M48 | 44.56-44.63 | 5 | 1400 | 1381 | 1528 |
| M56 | 52.22-52.30 | 5.5 | 2030 | 1908 | 2111 |
Diameter : M16~M56
Tensile strength, Rm of Grade 10.9: min 1040 MPa, 152ksi
Yield strength, RP0.2 of Grade 10.9: min 940 MPa, 138ksi
Stress under prrof load: 830 MPa
Elongation, A%: 10
Reduction rate, Z%: 50
Hardness: 32~39 HRC, 320~380 HV
Impact energy -40℃: 35J
Manufacture Process
Raw Material Test — Normalizing — Sand blasting — Drawing & Straightening — Heat Treatment
— UT Test — Saw cutting — Chamfer — Polishing — Screw thread — Tensile test — Marking —
QC Test — Anti-corrosion Test — Stock
Post time: Oct-07-2020