英制螺栓机械性能要求..doc

英制（SAE J429）螺栓所用材料： Grade 1 2 4 5 5.1 5.2 7 8 8.1 8.2 Material and Treatment Low or medium carbon steel Medium Carbon cold drawn steel Medium Carbon steel quenched and tempered Low or medium carbon steel Medium Carbon alloy steel quenched and tempered SAE 1541 Low or medium carbon steel Element% C Min -- 0.28 0.15 0.15 0.28 0.28 0.28 0.15 Max 0.55 0.55 0.55 0.55 0.30 0.25 0.55 0.55 0.55 0.25 Mn Min 0.74 0.74 P Max 0.048 0.048 0.048 0.048 0.048 0.048 0.040 0.040 0.048 0.048 S Max 0.058 0.058 0.13 0.058 0.058 0.058 0.045 0.045 0.058 0.058 B Min 0.0005 0.0005 英制螺栓（SAE J429）的机械性质： 强度等级 Grade Designation 产品Products 规格Nominal Size Dia In Full Size Bolts， Screws，Studs，Sems 机械性能Machine Test Specimen Of Bolts，Screws，and Studs Surface Hardness Core Hardness Proof Load Tensile Strength Yield Strength Tensile Strength Elongation伸长率 Reduction Of Area断面收缩 Rockwell 30N Max Rockwell Min Max 1 Bolts螺栓 Screws螺钉 Studs螺柱 1/4 thru 1-1/4 33000 60000 36000 60000 18 35 B70 B100 2 Bolts螺栓 Screws螺钉 Studs螺柱 1/4 thru 3/4 55000 74000 57000 74000 18 35 B80 B100 Over 3/4 thru 1-1/2 33000 60000 36000 60000 18 35 B70 B100 4 Studs螺柱 1/4 thru 1-1/2 65000 115000 100000 115000 10 35 C22 C32 5 Bolts螺栓 Screws螺钉 Studs螺柱 1/4 thru 1 85000 120000 92000 120000 14 35 54 C25 C34 Over 1 thru 1-1/2 74000 105000 81000 10500 14 35 50 C19 C30 5.1d此螺丝有垫片 Bolts螺栓 Screws螺钉 Studs螺柱 No.6 thru 5/8 85000 120000 59.5 C25 C40 No.6 thru 1/2 / / / / / / / / / 5.2 Bolts螺栓 Screws螺钉 1/4 thru 1 85000 120000 92000 120000 14 35 56 C26 C36 7e此螺丝热处理后辗牙 Bolts螺栓 Screws螺钉 1/4 thru 1-1/2 105000 13300 115000 133000 12 35 54 C28 C34 8 Bolts螺栓Screws螺钉 Studs螺柱 1/4 thru 1-1/2 120000 150000 130000 15000 12 35 58.6 C33 C39 8.1 Studs螺柱 1/4 thru 1-1/2 120000 150000 130000 150000 10 35 C32 C38 8.2 Bolts螺栓 Screws螺钉 1/4 thru 1 120000 150000 130000 150000 10 35 58.6 C33 C39 Chemical化学成份 Carbon:碳 Manganese min锰 Phosphorus max磷 Sulfur ,max硫 Boron ,min硼 Type1 Heat analysis