ISO 148-1:2016
Metallic materials — Charpy pendulum impact test — Part 1: Test method
ISO 148-1:2016 specifies the Charpy (V-notch and U-notch) pendulum impact test method for determining the energy absorbed in an impact test of metallic materials. This part of ISO 148 does not cover instrumented impact testing, which is specified in ISO 14556.
Annexes B and C are based on ASTM E23 and are used with the permission of ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, USA.
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
3.1 Definitions pertaining to energy
3.2 Definitions pertaining to test piece
4 Symbols and abbreviated terms
5 Principles of the test
6 Test pieces
6.1 General
6.2 Notch geometry
6.2.1 V-notch
6.2.2 U-notch
6.3 Tolerance of the test pieces
6.4 Preparation of the test pieces
6.5 Marking of the test pieces
7 Test equipment
7.1 General
7.2 Installation and verification
7.3 Striker
8 Test procedure
8.1 General
8.2 Friction measurement
8.3 Test temperature
8.4 Specimen transfer
8.5 Exceeding machine capacity
8.6 Incomplete fracture
8.7 Test piece jamming
8.8 Post-fracture inspection
9 Test report
9.1 Mandatory information
9.2 Optional information
Annex A (informative) Self-centring tongs
Annex B (informative) Lateral expansion
Annex C (informative) Fracture appearance
Annex D (informative) Absorbed energy vs. temperature curve and the transition temperature
Annex E (informative) Measurement uncertainty of an absorbed energy value, K
Bibliography
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Related Information
Similar Standards
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BS 131-1:1961
Methods for notched bar tests, The Izod impact test on metals
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BS 131-4:1972
Notched bar tests, Calibration of pendulum impact testing machines for metals
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BS 131-5:1965
Notched bar tests, Determination of crystallinity
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BS 131-6:1998
Notched bar tests, Method for precision determination of Charpy V-notch impact energies for metals
Foreword
1 Scope
2 Normative references
3 Terms and definitions
3.1 Definitions pertaining to energy
3.2 Definitions pertaining to test piece
4 Symbols and abbreviated terms
5 Principles of the test
6 Test pieces
6.1 General
6.2 Notch geometry
6.2.1 V-notch
6.2.2 U-notch
6.3 Tolerance of the test pieces
6.4 Preparation of the test pieces
6.5 Marking of the test pieces
7 Test equipment
7.1 General
7.2 Installation and verification
7.3 Striker
8 Test procedure
8.1 General
8.2 Friction measurement
8.3 Test temperature
8.4 Specimen transfer
8.5 Exceeding machine capacity
8.6 Incomplete fracture
8.7 Test piece jamming
8.8 Post-fracture inspection
9 Test report
9.1 Mandatory information
9.2 Optional information
Annex A (informative) Self-centring tongs
Annex B (informative) Lateral expansion
Annex C (informative) Fracture appearance
Annex D (informative) Absorbed energy vs. temperature curve and the transition temperature
Annex E (informative) Measurement uncertainty of an absorbed energy value, K
Bibliography