4140 bright mild steel stock bar
$800-1100 /Metric Ton
Min. Order: | 5 Metric Ton |
Selling Units | : | Metric Ton |
Bright Finished Steel Bar
Our factory has complete equipment. Through technical means such as quenching and tempering, normalizing and annealing, the steel has good metallographic structure, uniform hardness, stable quality, high dimensional accuracy, smooth surface and no defects, which can greatly improve machining efficiency and reduce materials. loss. It can be applied to various vehicle drive shafts, intermediate shafts and other high-precision security rods. 4140 peeled or turned teel bar peeling or turning is a kind of machining used to remove the imperfections on the hot rolled bars surface. 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 which can be directly used to produce components. 4140 turned, ground and polished precision shafting is produce by 4140 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. 4140 turned ground and polished steel bar is used to produce crankshafts, high-speed motor shafts, axle shafts, pup shafts, etc.
As a processing factory, we can do cold drawing, peeling, cenerless grinding and polishing. So except 42CrMo4 hot rolled steel bars, we can also supply you 42CrMo4 Hot Rolled Steel Round Bar, 42CrMo4 Cold Drawn Steel Round Bar, 42CrMo4 peeled steel round bar, 42CrMo4 centerless ground and polished Bright Steel Round Bar. We can also produce 42CrMo4 Annealed Steel Round Bar, 42CrMo4 Normalized Steel Round Bar, 42CrMo4 Quenched And Tempered Steel Bar ( 42CrMo4 qt steel bar, 42CrMo4+ qt steel bar , 42CrMo4 Q&T steel bar).
42CrMo4 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 42CrMo4 cold drawn steel bar we supply:
Sizes | Wide range from 10mm to 100mm |
Tolerances | Precision to 0.01mm |
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. 42CrMo4 steel equivalent material:
GB | ASTM/SAE/AISI | DIN | SCM | AS /NZS1444 |
42CrMo | Aisi 4140 / sae 4140 / astm 4140 | 42CrMo4 / 42CrMoS4 | SCM440 | AS 4140 |
2. 42CrMo4 steel chemical composition:
Materail | Chemical Composition % | ||||||
ASTM/SAE/AISI | C | Si | Mn | S | P | Cr | Mo |
Aisi 4140 / sae 4140 / astm 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | 0.035 max | 0.035 max | 0.80-1.10 | 0.15-0.25 |
3. 42CrMo4 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
Quality is the most important. With complete testing equipment, we pays much more attention to the products quality. Not only the steel bar surface qualtity like diameter tolerance, length tolerance, surface roughness, decarbornization, straightness, we also do microsture and ultrosonic testing to guarantee the inner quality. In heat treatment, we do frequenet testing on the mechanical properties to keep 100% quality approved.
Product is most important, the protection package is also very important. We can customize different package according to your products level and requirements.
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
Fill in more information so that we can get in touch with you faster
Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.