SHANDONG LE REN SPECIAL STEEL CO., LTD.
| Selling Units | : | Metric Ton |
Product Specification
Production process: using high-uality automotive hot rlled steel bars, continuous oller hearthfumace nomalizing heat treatment, or medium frequency quenching and tempering treatment, andthen silver bright processing.
Performance index: actual grain size 7 to 9 grade, dimensional accuracy h8 ~ h11.
Product features: Good metallographic structure and average hardness are conducive to thequality stability of subsequent high-frequency quenching. Dimensional accuracy, smooth surface andno defects can greatly improve machining efficiency and reduce material loss.
4140 bright steel round bar is one kind of Bright Steel Bar which is produced by Hot Rolled Steel Round Bar or Cold Drawn Steel Bar after peeling, grinding and polishing.
| Products | Sizes | Tolerance |
| Steel round bar | 20mm -120mm | H8- h11 |
| Material | A36, 1020, 1045, S355JR, GR55 ,5120,5140, 4120, 4130, 4135, 4140, 4145, 4150, 8620 ,52100, S20C,S45C,SCM420,SCM440,C22,C45, 42CrMo4,42CrMoS4,SCR440C22, | |
| Applications | Bearing rings, high precision security guards, drive shaft, steering gears, piston rods, shock absorbers, precision forged gears | |
| Delivery Condition | Hot rolled, Cold drawn, Heat treated such as annealed, normalized, quenched&tempered | |
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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