英制螺栓机械性能要求Word格式文档下载.docx
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英制螺栓机械性能要求Word格式文档下载.docx
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Bolts,Screws,andStuds
Surface
Hardness
Core
Proof
Load
Tensile
Strength
Yield
Elongation伸长率
ReductionOf
Area断面收缩
Rockwell
30NMax
Bolts螺栓
Screws螺钉
Studs螺柱
1/4thru1-1/4
33000
60000
36000
18
35
B70
B100
1/4thru3/4
55000
74000
57000
B80
Over3/4thru1-1/2
1/4thru1-1/2
65000
115000
100000
10
C22
C32
1/4thru1
85000
120000
92000
14
54
C25
C34
Over1thru1-1/2
105000
81000
10500
50
C19
C30
此螺丝有垫片
thru5/8
C40
thru1/2
/
56
C26
C36
7e此螺丝热处理后辗牙
13300
133000
12
C28
Bolts螺栓Screws螺钉
150000
130000
15000
C33
C39
C38
Chemical化学成份
Carbon:
碳
Manganesemin锰
Phosphorusmax磷
Sulfur,max硫
Boron,min硼
Type1
Heatanalysis
Productanalysis
analysis
规格
NominalSizeDia.In
Screws,Studs,
SurfaceHardness
Hardness硬度
Elongationin
4Dmin%
ReductionofArea,min%
Brinell
HB布氏
HRC洛氏
TYPE2
85ksi
120ksi
92ksi
255to321
25to34
TYPE1
over1thru1-1/2
over1-1/2thru3
74ksi
55ksi
105ksi
90ksi
81ksi
58ksi
223to285
183t235
19to30
英制螺栓(ASTMA449)的化学成份和机械性质:
配合的螺帽为ASTMA563中的产品:
Thesevaluesaretheastheover-tappingrequiredforzinccoatednutsinSpecificationASTMA563
1/4至1-1/2英寸普通产品配合的螺帽为ASTMA563的B普通螺帽(hex);
1-1/2至3英寸普通产品配合的螺帽为ASTMA563的A重型螺帽(heavyhex);
1/4至3英寸镀锌产品配合的螺帽为ASTMA563的DH重型螺帽(heavyhex)
英制螺栓(ASTMA307)的化学成份和机械性质:
Chemical
化学成份
Sulfurmax硫
Boronmin硼
GradeA
max
①
GradeB
备注:
1lbf=1ksi=1lbf=
规格Nominal
SizeDiaIn
2inmin%
ReductionofAreamin%
HB
HRB
Lessthan3xdia
3xdiaandlonger
60ksi
121-241
max241
69-100
max100
GradeB
60-100ksi
121-212
max212
69-95max95
GradeC
All
58-80ksi
36(50)ksi
23
Nohardnessrequired
①Resulfurizedsteelisnotsubjecttorejectionbasedonproductanalysisforsulfur
1/4至1-1/2英寸普通产品配合的螺帽为ASTMA563的A普通螺帽(hex);
1-1/2至4英寸普通产品配合的螺帽为ASTMA563的A重型螺帽(heavyhex);
1/4至4英寸镀锌产品配合的螺帽为ASTMA563的A重型螺帽(heavyhex)
英制螺栓(ASTMA354)的化学成份和机械性质:
Forsizethrough1-1/2in
ForsizeLargethan1-1/2in
HRC
GradeBC
1/4to2-1/2
Over2-1/2
95ksi
125ksi
115ksi
109ksi
99ksi
16
45
255-331
235-311
26-36
22-33
GradeBD
150ksi
140ksii
130ksi
40
311-363
293-363
33-39
31-39
译文:
这些值为镀锌产品的要求,在ASTMA563中对螺帽有具体要求。
英制螺栓(ASTMA193)的机械性质:
GradeandClass
Diameter
in.
TensileStrength
ksi
YieldStrength
%Offset
4Dmin%
Refer
To
note
B5
To1/4incl.
100
80
B6
110
85
15
B6X
90
70
B7
To2-1/2incl.
125
105
C35
Over2-1/2to4
115
95
Over4to7
75
B16
321
Over2-1/2to2
17
B7M
To4incl.
235
B99
1,2
Classes1and1D:
B8,B8M,B8P,B8LN,B8MLN
all
30
223
B96
3,4
Class1:
B8C,B8T
Class1A:
B8A,B8CA,B8MA,B8PA,B8TA,B8LNA
B8MLNA,B8NA,B8MNA,B8MLCuNA
192
B90
3
Classes1Band1D:
B8N,B8MN,B8MLCuN
Class1Cand1D:
B8R
55
271
Class1C:
B8RA
Yield-Strength
B8S
B8SA
Class2:
B8,B8C,B8P,B8T,B8N
To3/4
Over3/4to1
Over1to1-1/4
Over1-1/4to1-1/2incl.
65
20
28
3,5
B8M,B8MN,B8MLCuN
96
25
Class2B:
B8,B8M2
To2incl.
Over2to2-1/2incl.
Over2-1/2to3incl.
Class2C:
B8M3
Over2
60
NOTES:
1.TheminimumtemperatureforGradesB5,B6X,andB7shallbe1100°
F;
forGrade
B16,1200°
等级为B5,B6X和B7的最小回火温度为1100°
F,而等级为B16的最小回火温度为1200°
F
2.Tomeetthetensilestrengthrequirements,thehardnessshallbeoverBrinell201(RockwellB94)minimum.
硬度一定要在201布氏(94HRB)硬度以上,抗拉强度一定能达到。
3.Class1issolutiontreated-Class1Aissolutiontreatedinthefinishedconditionforcorrosionresistance;
heattreatmentiscriticalduetophysicalpropertyrequirements.Class2issolutiontreatedandstrain-hardened.Austeniticsteelsinthestrain-hardenedconditionmaynotshowuniformpropertiesthroughoutthesectionparticularlyinsizesover3/4in.indiameter.
译文:
Class1将其视为1级对待,Class1A的材料应进行表面处理,具有防腐蚀性能,Class2类的各等级的材料应接受碳化物固溶处理后应变硬化奥氏体钢,尤为3/4以上的螺栓,经硬化后可能出现整个面上各部分性能不均匀现象.
4.Fordiameters3/4in.andsmaller,amaximumhardnessofBrinell241(RockwellB100)ispermitted.
直径为3/4或更小的产品,硬度要求为最大241布氏(100HRB)硬度。
5.Fordiameters1-1/2in.andlarger,center(core)propertiesmaybelowerthanindicatedbytestreportswhicharebasedonvaluesdeterminedatmid-radius.
直径为1-1/2或更大产品,芯部性能低于试验报告所点明的性能,因为试验报告依据的数值是在半径中点处测定的。
Table3GradeIdentificationMarkingsfor
PopularGradesofCarbonSteelNuts
GradeIdentificationMarking
Specification规
Material材料
NominalSizein.
ProofLoadStressksi载荷
HardnessRockwell硬度
SeeNote参见笔记
NOMARK
ASTMA563-GradeO
CarbonSteel
69
B55
ASTMA563-GradeA
B68
ASTMA563-GradeB
120
B69
SAEJ995-Grade2
-
11
ASTMA563-GradeC
CarbonSteelmaybeQuenchedandTempered
1/4thru4
144
B78
ASTMA563-GradeC3
AtmosphericcorrosionResistantSteel,maybeQuenchedandTempered
5,9
ASTMA563-GradeD
150
B84
6
SAEJ995-Grade5
ASTMA563-GradeDH
CarbonSteel,QuenchedandTempered
175
C24
ASTMA563-GradeDH3
AtmosphericcorrosionResistantSteel,QuenchedandTempered
ASTMA194-Grade1
130
2,7
ASTMA194-Grade2
MediumCarbonSteel
159
352
2,7,8
ASTMA194-Grade2H
MediumCarbonSteel,QuenchedandTempered
Table3Continuednextpage
Table3GradeIdentificationMarkingsforPopularGradesofCarbonSteelNuts
(Conti
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