SHANGHAI UNITE STEEL
| Payment Terms | D/A, L/C, D/A, D/P, T/T |
| Supply Ability | 3000 Ton per Month |
| Delivery Time | Within 15-35 days |
| Packaging Details | Standard seaworthy packing or as your request . |
| Product name | SCM 440 / 42 Crmo4 Hot Rolled Steel Bar ,Alloy Steel Bar , 10-320 mm Hot Rolled Steel Round Bar |
| Material grade | AISI 4140/SCM440/42Crmo4 |
| Deliervy condition | annealed/hot rolled/cold drawn/quenched & tempered |
| Surface | black/machined/peeled/polished/turned |
| Certificate | ISO/MTC/BV/SGS |
| Process | LD+LF+VOD+CC+HOT ROLLED+CUT+SLOW COOLING+STRAIGHTENED |
| UT | 100% Ultrasonic according to the test standards:SEP1921-84 |
| Shape | Round shape |
| Brand Name | Unite Steel |
| Model Number | Dia : 10-320mm |
| Certification | ISO/MTC/BV/SGS |
| Place of Origin | China |
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Product Specification
| Payment Terms | D/A, L/C, D/A, D/P, T/T | Supply Ability | 3000 Ton per Month |
| Delivery Time | Within 15-35 days | Packaging Details | Standard seaworthy packing or as your request . |
| Product name | SCM 440 / 42 Crmo4 Hot Rolled Steel Bar ,Alloy Steel Bar , 10-320 mm Hot Rolled Steel Round Bar | Material grade | AISI 4140/SCM440/42Crmo4 |
| Deliervy condition | annealed/hot rolled/cold drawn/quenched & tempered | Surface | black/machined/peeled/polished/turned |
| Certificate | ISO/MTC/BV/SGS | Process | LD+LF+VOD+CC+HOT ROLLED+CUT+SLOW COOLING+STRAIGHTENED |
| UT | 100% Ultrasonic according to the test standards:SEP1921-84 | Shape | Round shape |
| Brand Name | Unite Steel | Model Number | Dia : 10-320mm |
| Certification | ISO/MTC/BV/SGS | Place of Origin | China |
| High Light | hot rolled round bar ，spring steel round bar | ||
AISI 4140/SCM440/42Crmo4 Hot Rolled Steel Bar , Alloy Steel Round Bar ,Tool Steel Bar
Description:4140 is a 1% chromium - molybdenum medium hardenability general purpose high tensile steel - generally supplied hardened and tempered in the tensile range of 850 - 1000 Mpa (condition T).
4140 is now available with improved machinability, which greatly increases feeds and/or speeds, while also extending tool life without adversley affecting mechanical properties.
Pre hardened and tempered 4140 can be further surface hardened by flame or induction hardening and by nitriding.
APPLICATIONS:
It is the most commonly used of the high tensile steels with a wide range of applications in automotive, Gear and Engine construction, Crankshafts, Steering knuckles, Connecting rods, Spindles, Intermediate gears, Pump and Gear shafts, Axles, Nuts and Bolts, bearing, gear, transmission gear, supercharger gear, engine cylinder, spring, 1200mm-2000mm rotary shouldered connections for petroleum industry, jar knocker.
Chemical Composition (%):
| C | Si | Mn | P(max) | S(max) | Cr | Mo |
| 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.04 | 0.04 | 0.90-1.20 | 0.15-0.25 |
Process: EAF+LF+VOD+Forged+Heat Treatment(optional)
SIZE RANGE:Dia:10-320mm
SURFACE FINISHES:
Black, Peeled(K12), Cold Drawn, Turned & Polished(H10, H11), Precision Ground(H9, H8)
Test: Ultrasonic test according to SEP 1921-84 .
Machining
4140 in the hardened and tempered as supplied condition has good machinability , operations such as sawing, turning, drilling, broaching, hobbing, milling and tapping can be carried out satisfactoraly using machine manufacturers recommendations for suitable tool type - feeds and speeds.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
10000000-25000000
Employee Number:
50~110
Ecer Certification：
Active Member
We, Shanghai Unite Steel are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national... We, Shanghai Unite Steel are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national...
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