SHANDONG LE REN SPECIAL STEEL CO., LTD.
| Selling Units | : | Metric Ton |
42CrMoS4 Turned Ground and Polished Steel Round Bar
42CrMoS4 ground and polished steel bar is a kind of machining used to remove the imperfections on the hot rolled bars surface such as the scales and the decarbornization. It can also get more precision diameter tolerance and bright surface after peeling or turning. If grinding or polishing is added, the steel bars will be have very good surface roughness and straightness which can be directly used to produce components.
42CrMoS4 turned, ground and polished precision shafting is produce by 42CrMoS4 cold drawn or hot roll steel bar to get precision dimension and better straightness in the production of shafts. The straightness is quite important to shafting CNC machining. 42CrMoS4 turned ground and polished steel bar is used to produce crankshafts, high-speed motor shafts, axle shafts, pup shafts, etc.
42CrMoS4 turned ground and polished steel bar we supply includes following advantages:
Consistent mechanical properties
Deep mechanical properties (from surface to the center according to your requirement)
Even hardness on the whole bars/Tougher and Increased strength
No brittle, UT testing/Precision size tolerance/Good straightness
Good Roughness/Professional technical service/Competitive price/Fast delivery
Specification of 42CrMoS4 cold drawn steel bar we supply:
| Sizes | Wide range from 10mm to 100mm |
| Tolerances | Precision to 0.02mm |
| Roundness | 80% of diameter tolerance |
| Straightness | Good straightness to 0.2mm/m |
| Surface roughness | Smooth to 0.4um |
| Mechanical properties | Yield strength and tensile strength can be improved |
| Machining | Suitable for machining and welding |
1. 42CrMoS4 steel equivalent material:
| GB | ASTM/SAE/AISI | DIN | SCM | AS /NZS1444 |
| 42CrMo | Aisi 4140 / sae 4140 / astm 4140 | 42CrMo4 / 42CrMoS4 | SCM440 | AS 4140 |
2. 42CrMoS4 steel chemical composition:
Materail Chemical Composition % C Si Mn S P Cr Mo 42CrMoS4 0.38-0.43 0.15-0.35 0.60-0.90 0.020-0.035 0.035 max 0.80-1.10 0.15-0.25
3. 42CrMoS4 steel mechanical properties:
| Mechanical Properties | ||||
| Yield Strength (MPa) | Tensile Strength (MPa) | Elongation | Reduction of area | AKV (J) |
| 930 min | 1080 min | 12% min | 45% min | 63 min |
high strength stud bolt, Threaded Rods, wind power bolt, prestressed anchor bolts, post stressed anchor bolt, Steel Tie Rod, tie bar, tension rod, Tension Bar etc. Shaft, axle shaft, crankshaft, shaft for sleeve, linear shaft, pump shaft, rotor shaft, sensor shaft, spline shaft, drive shaft, mandrel shaft, transmission shaft, screw rod etc. CNC machines, precision CNC machines etc. Ejector pins and Ejector rods
Shandong Le Ren Special Steel CO., Ltd. owns three factories to produce all kinds of steel rod, steel bar and finished steel products. Among three factories, one is to produce steel bars such as annealed, normalized and quenched and tempered steel bar and pipe, cold drawn, peeled, ground and polished steel bar etc; one is to produce threaded or knurled steel rod and steel bar; another one is to do steel bar, steel rods or steel pipe machining.
In the tactories, we have complete and advanced production, inspection and testing facilities such as shot blasting machines, cold drawing machines,straightening machines, annealing furnace, quenching and tempering furnaces, threading machines, cnc machines, welding machines etc, and inspections and testing facilities to inspect dimension tolernaces, corner radius, length, straightness, surface roughness, mechanical properties, AKV, UT testing, Eddy testing and MPI testing etc. All of these, including more than twenty years production and exporting experiences, we can supply you good quality products and services.
Our factory is equipped with complete inspection and testing facilities to inspect steel bar dimension tolernaces, corner radius, length, straightness, surface roughness, mechanical properties, AKV, UT testing, Eddy testing and MPI testing etc.
Most of our steel bar are cold drawn, peeled, ground and polished steel bar which require good surface and straightness. So steel bar packing is very important to keep good quality. We use several kinds of steel bar packing according to your technical requirements.
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