We compare the electric arc furnace (EAF) and the basic oxygen furnace (BOF) by energy source, charge material, scale, carbon footprint and typical products.
We compare C45 (1045) carbon steel with 42CrMo4 (4140) chrome-moly quenched & tempered steel by hardenability, strength, welding and cost — which to choose and when?
We compare S235JR and S355J2 structural steels by yield strength, chemical composition, weldability and cost — which grade should you choose and when?
The only thing separating cast iron from cast steel is carbon content — and that single difference changes toughness, weldability and cost completely. Differences, shop-floor identification tests and a selection guide.
We compare 4130 (25CrMo4) and 4140 (42CrMo4) chrome-molybdenum steels by carbon content, hardenability, weldability and application — which grade should you pick, and when?
We compare 4140 (42CrMo4) and 4340 (34CrNiMo6) by nickel content, hardenability, toughness and cost — the economical workhorse or the premium steel for critical parts?
A detailed comparison of hot rolling and cold drawing processes. A guide for selecting the right bar form in terms of surface quality, tolerance, cost, and mechanical properties.
Comparison of leaded and lead-free free-cutting steels. Differences between 11SMnPb30 and 11SMn30 in terms of machinability, cost, and environmental regulations.
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