A36 HRS vs 1018 CRS

[RJT]

I know what the physical differences are (size, finish, etc) but is there any a big difference in shear, compression, or chemistry? I want to reccomend a cost savings to a customer by going to HRS, but I'm not sure if I will be sacrificing anything. These are 1 by 4 by 30 inch parts made from bar stock.
RJT

[johnoder]

Cold finished 1018 has higher properties due to cold working (assuming outside is not removed by machining). EMJ catalog says CF1018 has 70K yield as a 1" round bar.

ASTM A36 has about 36K yield (EMJ says 36K min.)

John Oder

[Airborne]

Like John said, the yield strengths have a pretty big spread, but the ultimate strengths are about the same.

If the parts aren't likely to get dented or bent, then A36 might be a good choice.

[RJT]

Just had a steel vendor tell me that A36 could have about anything in it. No good specs, the only thing he would gaurantee was if you threw it in the ocean it would sink.

[Ox]

Even the Dead Sea?


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I was born in the sight of water
The whales and the albatross - they are my brothers
Ox

[Airborne]

Originally Posted by Ox

Even the Dead Sea?

The dead sea is not an ocean.

BTW, aren't a lot of ships made out of A36 or similar?