归类 合金钢 A354 Grade BC 化学元素成分含量(%) 成分C Mn P S B d≤4 inch 最小值 0.3 0.6 - - - 最大值 0.53 - 0.035 0.04 0.003 碳当量计算 A354 Grade BC 机械性能 抗拉强度σb ksi 屈服点σs ksi 断后伸长率或延伸率δ % 断面收缩率ψ % 硬度 HBW ...
ASTM A354 Grade BB Bolts, Studs Alloy Steel, Quenched and Tempered 1/4 thru 2-1/2 2-3/4 thru 4 80,000 75,000 83,000 78,000 105,000 100,000 BC ASTM A354 GradeBC 105,000 95,000 109,000 99,000 125,000 115,000 SAE J429 Grade 7 Bolts, Screws, Medium Carbon Alloy Steel, ...
详细说明:美制ASTM A354六角头螺栓,依据美国材料协会规定使用的材质来生产并淬火。热处理也作了相应规范,对机械性能上有作明确的要求。美制ASTM A354六角头螺栓分为ASTM A354 Grade BC,ASTM A354 Grade BD这个两个等级,ASTM A354 Grade BD多见于压力容器等行业配件上,对硬度和抗拉强度有较为严格的要求。美制ASTM...
Material Grade A193 A320 A354 A2 A4 304 316L Length 2"~20" 20mm~500mm Surface Treatment Black Oxide/Blue/Clear Zinc/ HDG Zinc Grades of Bolt B7 B8 Bc Bd 8.8/9.8/10.9/12.9 Material Type Carbon Steel/Alloy Steel/Stainless Steel Surface Coating PTFE/Geomet/Da...
A354BC products are to be marked “BC” A354BD products are to be marked “BD” For grade BD bolts, marking may include 6 radial lines in addition to the other marking requirements. Dimensions Unless otherwise specified, headed bolts shall be hex with dimensions covered under ASME B18.2.1...
材质:35CrMo/30CrMo合金钢、AISI4140、AISI4145合金钢、AISI410/S41000不锈铁、美标Cr-Mo-V 合金钢、AISI1045碳钢、AISI304/S30400 AISI316/S31600 不锈钢;标准及等级:ASTM A193/A193M Gr.B7、B7M、B16、B8、B8A、B8M、B8MA、B6、B8-2、B8M-2,ASMESA-320/SA-320M Gr.L7、L7M、B8、B8A 、B8M、B8MA...
其中,SAE J429分为Gr.2、Gr.5、Gr.8等三个等级,而ASTM A354则分为Gr.BC和Gr.BD两个等级。不同等级的螺栓在标识方式上也有所不同。例如,SAE J429等级的螺栓通常通过带有“Grade”或“G”的标记进行区分,如Grade 2、Grade 5等;而ASTM A354等级的螺栓则一般通过将等级标识写在螺栓名称前面的方式进行区分...
1. Scope* Nut Grade and 2 Grade of Fastener and Surface Finish StyleA 1.1 This specification covers the chemical and mechanical requirements of quenched and tempered alloy steel bolts, studs, BC, plain (or with a coating of insufficient thick- C, heavy hex and other externally threaded ...
对于直径尺寸超过 1 1/2" 英寸的紧固件,对于需要抗拉强度超过 120 ksi 的结构钢螺栓连接,可以考虑 BC 级;对于需要抗拉强度超过 150 ksi 的结构钢螺栓连接,可以考虑使用 BD 级。在这种情况下,应仔细考虑 F3125/F3125M 规范的附加要求,例如磁头尺寸、润滑剂和磁粉检查。1.3 螺母包含在规范 A563 中。除另有...
A354 Grades BD Grade BD bolts are higher in strength than grade BC, and equal in strength to ASTM F3125 grade A490 bolts. Unlike A490 however, the A354 standard is unrestricted in its configuration. Also, since A490 bolts are for structural use and do not exceed 1-1/2” in diameter,...