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Material Substitute for load bearing part

Material Substitute for load bearing part

Material Substitute for load bearing part

(OP)
Good afternoon,

I have a customer part and would like to propose a switch due to material availability in my area. See below my options avialable.

Customer asked for .177-A656-Grade 50

Option 1: .1875-ASTM-A572-Grade 50
Option 2: .179-A715 Min grade is 50

The part is holding a heavy load cantilevered off the side of a vehicle. If I were to propose a material deviation, which would be the best?
Replies continue below

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RE: Material Substitute for load bearing part

He asked for A656 High-strength, low-alloy (HSLA) steel usually in plate.

You are offering -
A572 High-strength, low-alloy (HSLA) structural steel
A715 (Withdrawn 2000) High-strength, low-alloy (HSLA) steel usually sheet or strip ?.

Sounds like they designed the part ?
I think the customer needs to determine what is OK, and better.

heavy load cantilevered. Are you making crane boom etc?
Is welding involved ?
Is forming/bending involved ?


RE: Material Substitute for load bearing part

Is "CAD Engineer" a new oxymoron ?

MJCronin
Sr. Process Engineer

RE: Material Substitute for load bearing part

(OP)
All of our materials for this application would come in as sheet and we'd laser cut.

Yes, our customer designed the part. I'd like to propose a new material to them without them doing too much up front work as they have limited staffing. However, if I propose something that makes sense, it'll be a little less work on their end.

This product cantilevers
  • 2 RV batteries off the side of a frame-rail. Welding and forming are both involved.

    RE: Material Substitute for load bearing part

    Add A514 to that list. It's readily available in 3/16" thickness if that's acceptable.

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