Heat-treatable steel castings*

Material- number Code Properties and information on application
1.1120r GS-20 Mn5
(DIN 17182)
Steel castings with improved weldability; used for crane wheels, brake disks, bogie wheels, steering knuckles, etc.
GS-24 Mn5 Used for mechanical parts for the automotive industry
GS-CK 25 Steel castings for crane wheels, steering knuckles, brake disks and other mechanical parts
1.7218 GS-25 CrMo 4
( DIN 17205 )
Steel castings offering a high level of strength and adequate toughness; for use in vehicle manufacture (steering knuckles), mechanical engineering
1.1165 GS-30 Mn 5
( DIN 17205 )
Ductile material; used for construction machinery and mechanical engineering applications
1.7725 GS-30 CrMOV 64
( DIN 17205 )
High-strength thick-walled steel castings (through-hardened only) with low transition temperature; for uses, see 1.7225
GS-32 NiCrMO 6 5 6 For heavy-duty machine elements
1.7220 GS-34 CrMo 4
( DIN 17205 )
See 1.7218, with higher strength values
1.7225 GS-42 CrMo 4
( DIN 17205 )
High-strength heat-treatable steel for wear-exposed castings, such as parts for rope winders, connecting rods, gear wheels
1.7755 GS-35 CrMoV 10 4
( DIN 17205 )
See 1.7725
1.6515 GS-25 CrNiMo 4
( DIN 17205 )
See 1.7725
1.6582 GS-34 CrNiMo 6
( DIN 17205 )
See 1.7725
1.6570 GS-30 NiCrMo 8 5
( DIN 17205 )
See 1.7725
1.6740 GS-33 NiCrMo 7 4 4
( DIN 17205 )
See 1.7725
1.7341 GS-34 CrMo 44 See 34 CrMo 4.
1.7755 GS-35 CrMoV 104
(DIN 17205)
For use in vehicle manufacture
1.1167 GS-36 Mn5
(SEW 835 -60)
For use in automotive engineering
similar to
1.5122
GS-32 MnSi 54 Wear-exposed components such as crane wheels, gear wheels, parts for crushers. The wear resistance and hardenability increase with the carbon content.
1.5122 GS-37 MnSi 5
1.6748 GS-40 NiCrMo 6 5 6 High strength combined with good toughness; for use in power plant and mechanical engineering, bearing rings, high-grade wearing parts for construction machinery
1.7225 GS-42 CrMo 4
(DIN 17205)
Gearings, track links, vehicle and gearbox parts. At higher strength, suitable as a wear-resistant material for digger and tearing teeth with primarily abrasive wear.
similar to
1.7035
GS-42 CrMn 44 Used for high-strength components in mechanical and automotive engineering applications, and for wearing parts in construction machinery
1.5121 GS-46 MnSi 4 Castings for gear wheels, crane wheels and brake disks
GS-50 CrMn 44 Used for wear-exposed components such as crane wheels, gear wheels, parts for crushers. The wear resistance and hardenability increase with the carbon content.
similar to 1.5141 GS-50 MnSi 44 Castings for gear wheels, crane wheels and brake disks
1.5131 GS-50 MnSi 4 Used for high-strength components in mechanical and automotive engineering applications, and for wearing parts in construction machinery
GS-18 MnNiMo VD-TÜV 504
Used for parts in pressure vessels conforming to TRB 100 and AD-Merkblatt W5; pumps, valves, nuclear engineering applications

* further grades on request