型号:M16 ~ M56
等级:8.8/10.9
钢材:42CrMo
用途:风力发电
直径:M16 ~ M56
长度:2M ~ 12M
生产工艺流程:
根据计划购买原材料(指定的钢厂材料和等级)→原材料检验→初步矫直→热处理(中频热感应处理)→检查(性能测试)→剥落和精密对准(100%的超声波探伤,荧光磁粉检验,等等)→卸货→加工(倒角)→编码→辊压成形→检验(线程精密测量、中等直径测微计,等)→拉力检测→防腐处理→检查→包装→储存
尺寸
Anchor BOLT Grade 8.8风电锚栓8.8级 | ||||||
D No
| Diameter at smooth part
| Pitch | Cross Section
| Yield force
| Ultimate force | Weight/meter |
mm | mm | mm | mm2 | KN | KN | kg/m2 |
M36 | 33.23-33.29 | 4 | 817 | 539 | 678 | 6.83 |
M39 | 36.23-36.29 | 4 | 976 | 644 | 810 | 8.12 |
M42 | 38.90-38.96 | 4.5 | 1120 | 739 | 929 | 9.34 |
M48 | 44.56-44.63 | 5 | 1470 | 970 | 1220 | 12.28 |
Mechanical Properties of Available Anchor Bolt Grades
力学性能
Grade | Dia | Tensile Strength Rm/MPa | 2% Elongation Limit RP 0.2/MPa | Stress Under Proof Load SPf/MPa | Elongation after fracture A/% | Reduction oF Area after Fracture Z/% | Rockwell Hardness /HRC | Bolt Length mm | -40 ℃ Impact Absorb Energy K/J | |
min | max | max | ||||||||
8.8 | M16 ~M56 | 830 | 660 | 600 | 12 | 52 | 23 | 34 | 12000 | 27 |
9.8 | 900 | 720 | 650 | 10 | 48 | 28 | 37 | |||
10.9 | 1040 | 940 | 830 | 9 | 48 | 32 | 39 | |||
12.9 | 1220 | 1100 | 970 | 8 | 44 | 39 | 44 | |||
我们的风电锚栓产品具有超高的屈服强度(高达1100mpa)和抗拉强度(高达1220mpa)。产品性能远高于标准要求。
化学成分比较表
Country | Chemical Composition Comparsion of Anchor Cage Bolt Raw Material | |||||||
Steel Grade | C | Si | Mn | P | S | Cr | Mo | |
Germany | 42CrMo4 | 0.38-0.45 | ≤0.40 | 0.6-0.9 | ≤0.035 | ≤0.035 | 0.90-1.20 | 0.15-0.30 |
China | 42CrMo | 0.38-0.45 | 0.17-0.37 | 0.5-0.8 | ≤0.035 | ≤0.035 | 0.90-1.20 | 0.15-0.25 |
USA | 4140 | 0.38-0.43 | 0.2-0.35 | 0.75-1.00 | ≤0.035 | ≤0.040 | 0.80-1.10 | 0.15-0.25 |
USA | 4142 | 0.40-0.45 | 0.15-0.35 | 0.75-1.00 | ≤0.035 | ≤0.040 | 0.80-1.10 | 0.15-0.25 |
USA | B7 | 0.37-0.49 | 0.15-0.35 | 0.65-1.1 | ≤0.035 | ≤0.040 | 0.75-1.20 | 0.15-0.25 |