EN42 forging ingots
High carbon spring steel in the BS 970 series.
Spring and Bearing Steel Forging Ingots
Spring steel forging ingots and bearing steel forging ingots are heat treated to very high hardness. They depend on steel cleanliness more than any other family, because inclusions start fatigue cracks, which is why vacuum degassing and ladle refining matter here.
Supplied as square, fluted and round forging ingots, M1.5 to M22 (1,450 to 23,500 kg with hot top), vacuum degassed and bottom poured. Send the grade, standard, ingot mark and shape for a quotation. Chemistry is certified on the heat test certificate.
Spring steel grades
EN45 forging ingots
Silicon-manganese spring steel, close to 55Si7, used for leaf and coil springs.
SAE 5160 forging ingots
Chromium spring steel with good hardenability, for leaf springs and torsion bars.
50CrV4 forging ingots
Chromium-vanadium spring steel with good fatigue strength.
51CrV4 forging ingots
The current EN 10089 name for the 50CrV4 family of spring steel.
55Si7 forging ingots
Silicon-manganese spring steel (EN 10089), close to EN45, for leaf and coil springs.
65Si7 forging ingots
Higher carbon silicon-manganese spring steel for heavier springs.
Bearing steel grades
EN31 forging ingots
BS 970 high carbon chromium bearing steel, close to SAE 52100.
SAE 52100 forging ingots
The reference bearing steel, about 1% C and 1.5% Cr, for bearing races and rolling elements.
Other grade families
Plain Carbon Steel Forging IngotsCarbon Manganese Steel Forging IngotsCase Hardening Steel Forging IngotsThrough Hardened Alloy Steel Forging IngotsASTM A182 Chrome Moly Forging IngotsStainless and Tool Steel Forging Ingots
See also forging ingot specifications and the forging ingot size chart.