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Slewing bearing for concrete machinery:Slewing bearing for 72m pump
1) High reliability2) The inner and outer ring adopt 42CrMo4 materials which is superior to the EN10083 standard, which can effectively improve the low temperature impact capability and the heat treatment quality.3) Optimized design for improving the capability of anti-overturn.
sell tool steel 42CrMo / SCM440 / 4140 / G41400 / 1.7225 / 42CrMo4 Alloy structural steel round/flat/squar bar forged
Steel grade : GB: 42CrMo / DIN: 42CrMo4 / W-Nr: 1.7225 /SCM440 / 4140 / G41400 / 42CrMo4 / 42CD4 / SS14: 2244 / BS: 708M40
1.Chemical Composition(%)
Category: quenched and tempered alloy structural steelSteel Grade: 42CrMo4C (%): 0.38 ~ 0.45Si (%): 0.10 ~ 0.40Mn (%): 0.60 ~ 0.90P (%) ≤: 0.035S (%): ≤ 0.035Cr (%): 0.90 ~ 1.20Mo (%): 0.15 ~ 0.30Other (%): -
2. Available sizes :
Round bar : 50 mm - 1000 mm
Square steel : 70 mm - 1000 mm
Flat steel /modules : Thickness :80 mm-800mm ;Width:300mm-2000mm
And various specifications of Forgings : step shaft / the cylindrical parts / pie pieces / the annular pieces / modules / three-way valve body / and other special-shaped forgings.
3 Annealed hardness : HBS<=241
4 Properties
properties of 42CrMo is Similar to 35CrMo steel, due to the increase of carbon and chromium content, so the intensity and hardenability are better than 35CrMo. After quenching and tempering, 42CrMo has higher fatigue strength and resistance to repeated shocks, good low temperature impact toughness , no obvious temper brittleness.
5 Applications
It Is widely used for the locomotive traction gear, gear, rear axle, turbocharger, cylinder, connecting rod of the connecting rod and the spring ,
6 Technique
EF +LF+VD +ESR
4000T high speed forging press +2000T forging press +5T electro-hydraulic hammer.
7 Processing
Furnce material-melting-steel ingot-forging-forging billet- heating-rolling-slow cooling-collecting-annealing-finishing(straightening-scouring-surface conditioning)-inspection-packing- warehousing
8. Delivery condition
Annealed + black/peeled/turned/grinding/polishing surface option, Ultrosonic test accord with SEP1921-84 Class c/c d/d
We are professianal manufacturer and supplier of large varieties of alloy and specials steels including cold work tool steel, hot work tool steel, high speed tool steel and plastic mould stee etc. Just let us know your required specifications, it will be our big pleasure to offer you our services.