EN42 steel billets
High carbon spring steel in the BS 970 series.
Spring, Bearing and Special Steel Billets
Spring and bearing steels are heat treated to very high hardness. They depend on steel cleanliness more than any other family, because inclusions start fatigue cracks.
Supplied as continuous cast billets and blooms, 100 × 100 to 250 × 250 mm and 200 mm round, in lengths up to 12 m. Send the grade, standard, section and length for a quotation. Chemistry is certified on the heat test certificate.
Spring steel grades
EN45 steel billets
Silicon-manganese spring steel, close to 55Si7, used for leaf and coil springs.
SAE 5160 steel billets
Chromium spring steel with good hardenability, for leaf springs and torsion bars.
50CrV4 steel billets
Chromium-vanadium spring steel with good fatigue strength.
51CrV4 steel billets
The current EN 10089 name for the 50CrV4 family of spring steel.
Bearing steel grades
EN31 steel billets
BS 970 high carbon chromium bearing steel, close to SAE 52100.
SAE 52100 steel billets
The reference bearing steel, about 1% C and 1.5% Cr, for bearing races and rolling elements.
Other grade families
Plain Carbon Steel BilletsCarbon Manganese Steel BilletsCase Hardening Steel BilletsThrough Hardened Alloy Steel BilletsASTM A182 Chrome Moly Pressure Grade BilletsStainless and Tool Steel Billets
See also steel billet specifications and the billet size chart.