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Its hardened tool steel. chemical composition close to S5 and O6. Hardness is near 50 HRC. Mostly SMAW is used in our industry for welding. The part is rotor and its very small. thickness of build up is 7 to 9 mm on dia of 10 mm.

I am going to buildup on tool steel s5/06 for repair purposes, i have limited option of using electrodes which includes E8018-B2L and E12018M. I have also E309 and inconel. From my point of view in order to have good tensile strength i should use E12018M or E8018-B2L (2nd preference). Please...

Dhurjati: Its a seal weld etween CS threaded coupling to gray iron casted turbine casing.

Thanks Dave for sharing it. I need some reference of good website or company literature or some book.

Please tell me the electrode for welding cast iron to carbon steel. If possible also share the reference

i just saw on ASME Sec VIII Div . 1. If fillet is less than 13 mm, PWHT is not required. See table UCS-56-1 FOR P.No.1. What I am not sure it is than mandatory if fillet is greater than 13 mm throat. What information u need more to begin?

Anyone can tell me what is the PWHT requirement for fillet weld. I have to Fillet weld a plug with Leg size of 12 mmm.

Anyone can tell me what is the PWHT requirement for fillet weld. I have to Fillet weld a plug with Leg size of 12 mmm.

Ron: its just a sketch showing the connection of purlins, how they are connected to columns. Yes you are right columns are rotated to 90 from conventional situation. The columns are fixed with base plate to the anchors.

jayrod : also the web with all around weld

Ron: The designing of purlins is also important in terms of end connections because it has an effect on effective length. Which is required for the calculation of slenderness ratio. If purlins are acting like struts than we have to consider slenderness ratio. The value of Lambda is based on end...

CANPRO: I am evaluation an existing structure. I have attached a simple sketch just to show how purlins are attached to the side columns. The purlins are welded to the side columns. SO in this case what should be the end conditions of purlins fixed-fixed or pinned-pinned. Note: Please ignore...

hookie: Engineers do assumptions but where facts are present should utilize them.

AISC provide calculations of beams and columns and much details. I frequently use it in my work. But i didnt find any purlin details thats why i was asking. i think its not in AISC manual.

The end supports are not design assumptions. They are taken according to the connection type. Connection type determines whether it should be pinned or fixed.

hokie: yes they can be welded if hot rolled channels are used as purlins

does AISC provide calculations for purlins and girts? I tell if you know. i dint find any.

What are the end support types of flush type girts or purlins if they are welded to the columns. In my view it should be fixed type. Moment also act at the end in all three direction. Correct me if i am wrong?

Harste thanks for sharing the link

hookie66 and Harste : We use C-channels as purlins. Therefore, designing is required by us for the selection and purchase of members.