SHANGHAI UNITE STEEL
| Payment Terms | L/C, D/A, D/P, T/T |
| Supply Ability | 3000 Ton per Month |
| Delivery Time | Within 15-45 days |
| Packaging Details | Standard seaworthy packing or as your request . |
| Product name | 1.7225/41CrMo4 Hot Rolled Steel Bar Alloy Round Bar Steel Black/Peeled/Cold Drawn/Turned/QT |
| Marterial grade | 1.7225/41CrMo4 |
| Hardening | 850℃ oil |
| Tempering | 560℃ oil or water |
| Ultrasonic test | According to SEP 1921-84 3C/c |
| Delivery condition | Annealed/hot rolled/cold drawn/quenched & tempered |
| Surface treatment | Machined/peeled/polished/turned |
| Certificate | ISO 9001:2008/SGS/BV |
| Brand Name | Unite Steel |
| Model Number | Round bar |
| Certification | ISO/SGS/BV/MTC |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, D/A, D/P, T/T | Supply Ability | 3000 Ton per Month |
| Delivery Time | Within 15-45 days | Packaging Details | Standard seaworthy packing or as your request . |
| Product name | 1.7225/41CrMo4 Hot Rolled Steel Bar Alloy Round Bar Steel Black/Peeled/Cold Drawn/Turned/QT | Marterial grade | 1.7225/41CrMo4 |
| Hardening | 850℃ oil | Tempering | 560℃ oil or water |
| Ultrasonic test | According to SEP 1921-84 3C/c | Delivery condition | Annealed/hot rolled/cold drawn/quenched & tempered |
| Surface treatment | Machined/peeled/polished/turned | Certificate | ISO 9001:2008/SGS/BV |
| Brand Name | Unite Steel | Model Number | Round bar |
| Certification | ISO/SGS/BV/MTC | Place of Origin | China |
| High Light | alloy steel round bar ，spring steel round bar | ||
1.7225/41CrMo4 Hot Rolled Steel Bar Alloy Round Bar Steel Black/Peeled/Cold Drawn/Turned/QT
1.Grade: AISI 4140, DIN 1.7225/42CrMo4, JIS SCM440, GB 42CrMo
2.Size: dia 10-350mm length 2000-5800mm
3.Chemical composition:(%)
| C | Si | Mn | P | S | Cr | Ni | Mo |
| 0.42 | 0.30 | 0.60 | ≤0.025 | ≤0.025 | 1.00 | ≤ 0.25 | 0.20 |
4.Factory state: Hot rolled or forged. Annealed hardness≤229. Black surface.
5.Characteristic: This steel has good workability, machining deformation tiny anti-fatigue performance is quite good, is in hardenability steel. 4140 after heat treatment, good strength and good mechanical properties, good technology, and high-yield.
6.Application: Can also be used for the manufacturing requirements compared 35CrMo steel higher strength and a larger cross-section forgings quenched, such as the traction with a large gear, the transmission gears of the turbocharger, the rear axle, by the load greatly rod and colletbelow 2000m deep oil drill pipe joints and fishing tools, and can be used to mold bender.
7.Process flow: Electric arc furnace melting→Refining furnace → Vacuum treatment furnace → Cast ingot → Steel ingot anneal → Heating → High-speed forging,refining forging → Anneal,retarded cooling,air cooling → Quenching and tempering tretment → Finishing operation → Text → Finished products
8.MECANICAL PROPERTIES Heat Treated Condition
Yield strength ( Rp0.2): 930(max)
Tensile (Rm): 1088(max)
Elongation (A5) %: 13(min)
Charpy Impact J: 42(min)
Hardness HB:248 - 302 HB
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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