SFS-EN ISO 6892-1

Soveltamisala

Standardin ISO 6892 tässä osassa esitetään metallien vetokokeen suorittaminen huoneenlämpötilassa sekä siinä määritettävät mekaaniset ominaisuudet.
HUOM. Liitteessä A esitetään tietokoneohjattujen vetokoneiden käyttöä koskevat suositukset.

Tämän julkaisun valmistelusta Suomessa vastaa Metalliteollisuuden Standardisointiyhdistys ry, puh. 09 19 231 (vaihde).

Sisällysluettelo

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions

3.7 Testing rate
3.9 Maximum force

4 Terms and symbols
5 Principle
6 Test piece

6.1 Shape and dimensions
6.2 Types
6.3 Preparation of test pieces

7 Determination of original cross-sectional area
8 Marking the original gauge length
9 Accuracy of testing apparatus
10 Conditions of testing

10.1 Setting the force zero point
10.2 Method of gripping
10.3 Testing rate based on strain rate control (method A)
10.4 Testing rate based on stress rate (method B)
10.5 Choice of the method and rates
10.6 Documentation of the chosen testing conditions

11 Determination of the upper yield strength
12 Determination of the lower yield strength
13 Determination of proof strength, plastic extension
14 Determination of proof strength, total extension
15 Method of verification of permanent set strength
16 Determination of the percentage yield point extension
17 Determination of the percentage plastic extension at maximum force
18 Determination of the percentage total extension at maximum force
19 Determination of the percentage total extension at fracture
20 Determination of percentage elongation after fracture
21 Determination of percentage reduction of area
22 Test report
23 Measurement uncertainty

23.1 General
23.2 Test conditions
23.3 Test results

Annex A Recommendations concerning the use of computer-controlled tensile testing machines (informative)
Annex B Types of test pieces to be used for thin products: sheets, strips and flats between 0,1 mm and 3 mm thick (normative)
Annex C Types of test pieces to be used for wire, bars and sections with a diameter or thickness of less than 4 mm (normative)
Annex D Types of test pieces to be used for sheets and flats of thickness equal to or greater than 3 mm, and wire, bars and sections of diameter or thickness equal to or greater than 4 mm (normative)
Annex E Types of test pieces to be used for tubes (normative)
Annex F Estimation of the crosshead separation rate in consideration of the stiffness (or compliance) of the testing machine (informative)
Annex G Measuring the percentage elongation after fracture if the specified value is less than 5 % (informative)
Annex H Measurement of percentage elongation after fracture based on subdivision of the original gauge length (informative)
Annex I Determination of the percentage plastic elongation without necking, Awn, for long products such as bars, wire and rods (informative)
Annex J Estimation of the uncertainty of measurement (informative)
Annex K Precision of tensile testing — Results from interlaboratory programmes (informative)

Bibliography

Näytä kaikki

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions

3.7 Testing rate
3.9 Maximum force

4 Terms and symbols
5 Principle
6 Test piece

6.1 Shape and dimensions
6.2 Types
6.3 Preparation of test pieces

7 Determination of original cross-sectional area
8 Marking the original gauge length
9 Accuracy of testing apparatus
10 Conditions of testing

10.1 Setting the force zero point
10.2 Method of gripping
10.3 Testing rate based on strain rate control (method A)
10.4 Testing rate based on stress rate (method B)
10.5 Choice of the method and rates
10.6 Documentation of the chosen testing conditions

11 Determination of the upper yield strength
12 Determination of the lower yield strength
13 Determination of proof strength, plastic extension
14 Determination of proof strength, total extension
15 Method of verification of permanent set strength
16 Determination of the percentage yield point extension
17 Determination of the percentage plastic extension at maximum force
18 Determination of the percentage total extension at maximum force
19 Determination of the percentage total extension at fracture
20 Determination of percentage elongation after fracture
21 Determination of percentage reduction of area
22 Test report
23 Measurement uncertainty

23.1 General
23.2 Test conditions
23.3 Test results

Annex A Recommendations concerning the use of computer-controlled tensile testing machines (informative)
Annex B Types of test pieces to be used for thin products: sheets, strips and flats between 0,1 mm and 3 mm thick (normative)
Annex C Types of test pieces to be used for wire, bars and sections with a diameter or thickness of less than 4 mm (normative)
Annex D Types of test pieces to be used for sheets and flats of thickness equal to or greater than 3 mm, and wire, bars and sections of diameter or thickness equal to or greater than 4 mm (normative)
Annex E Types of test pieces to be used for tubes (normative)
Annex F Estimation of the crosshead separation rate in consideration of the stiffness (or compliance) of the testing machine (informative)
Annex G Measuring the percentage elongation after fracture if the specified value is less than 5 % (informative)
Annex H Measurement of percentage elongation after fracture based on subdivision of the original gauge length (informative)
Annex I Determination of the percentage plastic elongation without necking, Awn, for long products such as bars, wire and rods (informative)
Annex J Estimation of the uncertainty of measurement (informative)
Annex K Precision of tensile testing — Results from interlaboratory programmes (informative)

Bibliography

Tuoteryhmä(t)

77.040.10 Metallien rikkova aineenkoetus »

Sidokset

Velvoittavat viittaukset

Tässä julkaisussa ei ole velvoittavia viittauksia

Tekninen komitea

CEN/TC 459/SC 1 Test methods for steel (other than chemical analysis) »

Vahvistuspäivä

21.09.2009

Kumouspäivä

05.08.2016

Painos

1

Sivumäärä

124

Julkaisun kieli

suomi/englanti

SFS-EN ISO 6892-1 Kumottu