Header
About this publication
PREFACE
1 SCOPE AND DEFINITIONS
1.1 SCOPE
1.2 DEFINITIONS
2 METRIC BOLTS, STUDBOLTS AND NUTS FOR FLANGES INTENDED FOR USE IN THE TEMPERATURE RANGE –50°C TO +300°C
2.1 SCOPE OF SECTION
2.2 METRIC BOLTS
2.3 METRIC STUDBOLTS
2.3.1 Property Classes
2.3.2 Types of Studbolts
2.3.3 Shape, Dimensions and Finish
2.3.3.1 General dimensions
2.3.3.2 Body diameter
2.3.3.3 Length of studbolts
2.3.3.4 Ends of studbolts
2.3.3.5 Screw threads
2.3.3.6 Thread length
2.3.3.7 Finish
2.3.4 Material
2.3.4.1 General
2.3.4.2 Chemical composition
2.3.4.3 Free-cutting steels
2.3.4.4 Heat treatment
2.3.4.5 Decarburization
2.3.5 Mechanical Properties
2.3.5.1 Property class system
2.3.5.2 Mechanical property requirements
2.3.6 Testing of Mechanical Properties
2.3.6.1 General
2.3.6.2 Proof load testing of full-size metric studbolts
2.3.6.3 Tensile strength (wedge) testing of full-size studbolts
2.3.6.4 Tensile testing of machined proportional test pieces
2.3.6.5 Impact testing of machined test pieces
2.3.6.6 Hardness testing
2.3.6.7 Decarburization
2.4 METRIC NUTS
2.5 MARKING
2.5.1 Metric Bolts
2.5.2 Metric Studbolts
2.5.3 Metric Nuts
3 INCH STUDBOLTS AND NUTS FOR FLANGES INTENDED FOR USE IN THE TEMPERATURE RANGE –250°C TO +575°C
3.1 SCOPE OF SECTION
3.2 INCH STUDBOLTS
3.2.1 Strength Grades
3.2.2 Types of Studbolts
3.2.3 Shape, Dimensions and Finish
3.2.3.1 General
3.2.3.2 Body diameter
3.2.3.3 Length of studbolts
3.2.3.4 Ends of studbolts
3.2.3.5 Screw threads
3.2.3.6 Thread length
3.2.3.7 Length of reduced diameter portion (f)—Type ‘d’ studbolts only
3.2.3.8 Finish
3.2.4 Material
3.2.4.1 General
3.2.4.2 Chemical composition
3.2.4.3 Heat treatment
3.2.5 Mechanical Properties
3.2.6 Testing of Mechanical Properties
3.2.6.1 General
3.2.6.2 Tensile testing of machined proportional test pieces
3.2.6.3 Impact testing of machined test pieces
3.3 INCH NUTS
3.3.1 General
3.3.2 Method of Manufacture
3.3.3 Shape, Dimensions and Finish
3.3.3.1 General
3.3.3.2 Screw threads
3.3.3.3 Chamfering and washer facing
3.3.3.4 Countersinking
3.3.3.5 Squareness
3.3.3.6 Finish
3.3.4 Material
3.3.4.1 General
3.3.4.2 Chemical composition
3.3.4.3 Heat treatment
3.3.5 Mechanical Properties
3.3.6 Testing of Mechanical Properties
3.3.6.1 General
3.3.6.2 Proof load test
3.3.6.3 Cone stripping test
3.3.6.4 Hardness testing
3.4 MARKING
3.4.1 Inch Studbolts
3.4.2 Inch Nuts
3.4.3 Packaging
APPENDIX A
A1 SCOPE
A2 IMPORTANT NOTE
A3 ALLOWABLE BOLTING STRESS
A4 STRESS RELAXATION
A5 BOLTING TEMPERATURE
APPENDIX B
APPENDIX C
APPENDIX D
D1 GENERAL REQUIREMENTS
D2 SUPPLEMENTARY REQUIREMENTS
APPENDIX E
APPENDIX F
