GB/T 39520-2020
弹簧残余应力的X射线衍射测试方法
Test method for determination the residual stress of spring by X-ray diffraction
- 实施日期
- 2021-06-01
- ICS 分类
- 21.160
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
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GB/T 39520-2020
Test method for determination the residual stress of spring by X-ray diffraction
GB/T 39523-2020
Test method for torsional vibration of precision planetary cycloidal reducers
GB/T 39271.1-2020
Rolling bearings—Load ratings for hybrid bearings with rolling elements made of ceramic—Part 1: Dynamic load ratings
GB/T 32.1-2020
Hexagon bolts with wire holes on head
GB/T 5801-2020
Rolling bearings—Needle roller bearings with machined rings—Boundary dimensions, geometrical product specifications (GPS) and tolerance values
GB/T 799-2020
Foundation bolts
GB/T 39333-2020
Plain bearings—Quality assurance of sample types—Definitions, applications and testing
GB/T 273.3-2020
Rolling bearings—Boundary dimensions,general plan—Part 3:Radial bearings
GB/T 32.3-2020
Hexagon bolts with wire holes on head—Fine pitch thread
GB/T 800-2020
Countersunk head double nib bolts
GB/T 39430-2020
Specifications for the blanks of high reliability gears
GB/T 3098.25-2020
Mechanical properties of fasteners—Guidance for the selection of stainless steels and nickel alloys for fasteners
GB/T 39431-2020
Plain bearings—Bearings containing dispersed solid lubricants
GB/T 39519-2020
Hydranlic cylindrically helical compression spring with high working stress—Technical specifications
GB/T 39332-2020
General requirements for the anti-fatigue manufacturing of precision gears
GB/T 3098.24-2020
Mechanical properties of fasteners—Stainless steel and nickel alloys bolts, screws, studs and nuts for high temperature applications
GB/T 39310-2020
Fasteners—Types of inspection documents
GB/T 39522-2020
Metric series wires for the pitch diameters of screw threads
GB/T 39142.1-2020
Specification of plastic-steel bilayer self-lubricating materials—Part 1:Running-in layer with modified PTFE tape
GB/T 38965-2020
Disc coupling—Test requirement