Page 129 - A fundamnetal of Engineering Design
P. 129
Strength of welded joint
◦ Under the proper condition , all steel can be welded, but best result will
be obtained if steel having
1. UNS – Choose steel material specification between G10141 and
G10230. All these steel have a tensile strength in the hot rolled
condition in the range of 410 to 480 MPa.
2. AISC -The permissible stresses are now based on the yield strength of
material. ASTM Yield Strength of varying from 230 to 340 MPa
(S =0.5S )
y
u
Type of Loading Type of Weld Permissible N ( Factor of Safety)
Stress
Tension Butt 0.60S y 1.67
Bearing Butt 0.90S y 1.11
Bending Butt 0.60-0.66S y 1.52-1.67
Simple Butt 0.60S y 1.67
Compression
Shear Butt or 0.30S ut
Fillet
