HWD, NHWD, and SM values seems to be inflated

Question

hello I'm using EN15804 add on version 2, ecoenvent 3.12 and OpenLCA 2.7.0 version 

however, HWD, NHWD, and SM values seems to be inflated what should I do?

below results are for 1 kg hot rolled steel.

Answer 1

see the same question here: https://ask.openlca.org/10536/difference-steel-rolled-coils-steel-alloyed-from-ecoenvent. This comes from the background database.

Comments

This is a somewhat messy topic - in my view, GaBi waste results are way way too low and ecoinvent waste flows are somewhat high and maybe too high. Ideally, if you are on a steel EPD, you can obtain direct data for the waste from the steel company.