一次性讲清A193-B7,B7M,A193-B8,B8M B16全螺纹螺柱
A-193B7M级别的螺栓材料的化学成分与B7级相同，经过淬火和回火，以达到较低的硬度。 它们的拉伸强度也低于B7级别的螺栓。 通常用于应力腐蚀开裂环境/浮头换热器。 A-194 2HM级别的 …
ASTM A193 B7 vs. A193 B7M - Portland Bolt
2014年10月27日 · There are some significant differences in both the mechanical properties and the testing requirements of A193B7M and A193B7. For instance, A193B7M has a minimum …
ASTM A194 Grade 2H vs. 2HM - Portland Bolt
What is the Difference between ASTM A194 Grades 2H and 2HM Nuts? A194 2H nuts are a common high strength nut used with many different bolt grades, including A193 Grade B7, …
ASTM A193 Grade B7M Specification - Boltport Fasteners
Grade B7M is a heat-treated chromium-molybdenum alloy steel with minimum tensile requirement of 100 ksi, yield of 75 ksi and maximum hardness of 99 HRB. ASTM A193 specification covers …
Difference between Stud Bolts ASTM A193 B7 and ASTM A193 B7M …
ASTM A193 Grade B7M bolts and studs are identical in chemical composition to Grade B7 (quenched and tempered medium carbon alloy steel), but have lower strength requirements …
A193-B7/A194-2H是什么材质的螺栓螺母 - 百度知道
ASTM A193 B7钢材属于超高强度钢，具有高强度和韧性，淬透性也较好，无明显的回火脆性，调质处理后有较高的疲劳极限和抗多次冲击能力，低温冲击韧性良好。 ASTM A193 B7钢材适宜 …
A193-B7螺栓与A194-2H螺母的中国材料代用 - 道客巴巴
2019年6月9日 · 从ASME A193 上可以查到A193‑B7 的机械性能，直径在2 1/2’（2.5 ’）以下的螺栓的抗拉强度为125ksi ( 约862MPa) ，屈服强度为105ksi ( 约 750 MPa) ，查中国标准GB/T …
ASTM A193等级B7m螺栓和SA 193 B7m六角螺栓/螺柱/螺纹杆
ISO metric and Unified threaded ASTM A193 Grade B7m Bolts manufacturer, SA 193 B7m Studs, Hex Bolt, Threaded Rod, Hex Nuts, Screw and B7m washers in M3 to M30 sizes. Check price …
美标A193-B7全螺纹螺柱 - xsbolt.com
A193 B7(或A193 B7M)机械性能标准等级，相应的最小抗拉强度是861.25（689.00）Mpa；最小屈服强度是723.45（551.20）Mpa；延伸率是16（18）％；最大硬度是HRC35（HB235),材 …
ASME A193 B7/B7M螺柱详解 - 知乎 - 知乎专栏
b7及b7m是指螺柱的两种不同的力学性能和化学成分要求，b7m相较于b7具有更严格的硬度要求以及更低的力学强度。 具有很好的耐热和抗压性能。 这种材料使得B7螺柱在长时间承受高温和 …