Object: Used to measure the transverse tensile strength under static loading of a butt joint employing butt welds.
The reduced section tensile test normally fails in the parent metal and so it is not designed to give the tensile strength of the weld.
The radius reduced tensile test is a test of the as deposited diluted weld metal.
The all weld tensile test, using a longitudinal section from the weld only, is used to check the as deposited undiluted weld metal. (Usually used by consumable manufacturers.)
Method: The test piece is clamped at each end and a load is applied by an hydraulic or screw mechanism. The load is increased until fracture occurs.
Reporting Results:
- Type of specimen (e.g. reduced section).
- Whether excess eld metal is removed or not.
- Tensile strength, in Newtons per mm squared, is calculated from maximum load and original cross sectional area. When excess weld metal is not removed, the cross sectional area shall be the prod uct of the parent metal thickness and the width of the specimen.
- Location of fracture - whether in parent plate, heat affected zone or weld metal. If the fracture is in the parent metal, the distance from the weld zone shall be stated.
- Location and type of any flaws present on the fracture surface.
tensile strength.
The tensile test gives a measure of DUCTILITY.
(in Newtons per mm squared), a combination of percentage elongation and percentage reduction in area.