30CrNiMo8 forging material chemical and physical properties
special structural steels: Structural steels, Cr-Ni-Mo-steels with < 0, 4% Mo and < 2, 0% Ni
Din en 10083-3 (10/2006)
Steels for quenching and tempering. Alloy steels.
En 10083-3 (2006)
Din en 10083-3 (02/1996); din en 10083-1 (10/1996); din 17212 (08/1972)
Din en 10250-3 (12/1999)
Open die steel forgings for general engineering purposes. Alloy special steels.
En 10250-3 (1999)
Din en 10269 (07/2006)
Steels and nickel alloys for fasteners with specified elevated and/or low temperatures properties.
En 10269 (1999)
Din 17240 (07/1976); din 17280 (07/1985)
Din en 10297-1 (06/2003)
Seamless circular steel tubes for mechanical and general engineering purposes. Non-alloy and alloy steel tubes. Alloyed quality steels
En 10297-1 (2003)
Din 17204 (11/1990); din 1626 (10/1984); din 1629 (10/1984); din 1630 (10/1984)
Din sew 310 (08/1992)
Physical properties of steels.
Din sew 550 (08/1976)
Steels for larger forgings.
Range of application
Structural components for heavy demands
Steels for cold extrusion:
High-grade mass produced structural parts in general engineering, construction of apparatus, motor and vehicle construction. in a sequence of working processes (upset forging, could extrusion, pressing, bulging, drawing with intermediate surface and annealing treatment) parts of different shapes can be manufactured, possessing high density, a favorable fibering for stress, a very good sulface condition and a high dimensional accuracy. Because when cold extruded, as a result of the strengthening by cold working, hardness, breaking, strength and yield point increase, and through this, the working properties of the finished parts can be inproved. Also, according to circumstances, it is possible, to accomplish very high requirements with unalloyed steels, that by conventional production of the parts through machining and heattreatment only could be reached with alloyed steel grades. In connection with the high internal stress of the cold work hardened surface zone, the smooth surface leads to an increased fatique and vibratory strength. In addition to that, this surface is endowed with very favorable sliding properties and good resistance wear band, due to its firmly adhering phosphate coating. Through the possibility to adapt the fibering to the shape of the structural component, a deteriorating notch effect can be avoided. Through the deformation under the effect of pressure in steel tools, the enormity of the deformation as well as the quality of steel is limited through the maximum admissible surface pressing between the work piece and the tool. The choice of material mainly depends on the shape of the structural components, the necessary cold deformation and mechanical quality values of the finished part. Depending on the steel quality, cold deformed work pieces can also be heat treated, hardened and tempered or case hardened.
Heat treatable steel
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