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...
1.2 涵盖两个级别的螺栓强度,指定为 BC 级和 BD 级。选择将取决于设计以及产品使用的压力和服务。注 28212;用于结构钢接头的调质合金钢螺栓,直至 1½;规格 A 490 中涵盖了直径 1 英寸的螺栓、螺柱和其他外螺纹紧固件(即超过 1 英寸的重型六角结构螺栓、六角螺栓、地脚螺栓和沉头螺栓)本规范的 BD 级应...
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...
ASTM A 490 - 2011 合金鋼結構螺栓機械性能 ASTM A 574 - 2011 美制内凹槽圓柱頭螺釘的機械性能 ASTM A 307 - 2010 低碳鋼外螺紋緊固件機械性能标準 ASTM A 449 - 2010 中碳鋼外螺紋緊固件機械性能 ASTM A 563 - 2007 碳鋼、合金鋼螺母機械性能标準 ASTM F 568M - 2007 米制系列 碳鋼、合金鋼...
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,...
A354 grade BC Alloy steel, Q & T A354 grade BD 1/4 - 4120150Alloy steel, Q & T A449 1/4 - 1 1 1/8 - 1 1/2 1 3/4 - 385 74 55120 105 90Medium carbon steel, Q & T A490 type 1 1/2 - 1 1/2120150Alloy steel, Q & T ...
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