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4 - 60mm Thickness Casing Hardened Steel Flat Bar For Railway Spare Parts
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Brand Name:Unite Steel
Model Number:Flat bar
Certification:ISO/BV/SGS/MTC
Price:
Payment Terms:L/C, D/A, D/P, T/T
Supply Ability:3000 Ton per Month
Delivery Time:Within 15-45 days
Company Data
Active Member
Contact Person
Eric
Business Type:
86-21-35316960
Business Type:
Manufacturer Distributor/Wholesaler Agent Exporter Trading Company Seller
Officials:
Room 1109, Loft Office, Green Land International Plaza, No. 275-8 Guoding East Road, Shanghai 200433, P.R. China. (admin(a)shunitesteel.com)
Quality:
Quality Certifitation Available
Product Details
Company Profile
Product Details
AISI 4140/42CrMo4/SCM440 Hot Rolled Steel Bar ,Flat Steel Bar, Casing Hardened Flat bar, Low MOQ, Surface can machined
1.Application:
Flat steel flat bar point to the the steel that the width is 12-300 mm, the thickness is 4-60mm
thick, and cross section is rectangle with the edge of a little pure steel.
Main use: flat as timber can be used in the system of hoop iron parts, tools and machinery.
It also can be used as frame structure and escalator.
Flat Bar is used for general fabrication, making structures and frames.
Mild Steel Flat Bar can be easily cut and drilled, and is particularly suited to welding.
Examples of its use include furniture making, machinery manufacturing,
shipbuilding, railway spare parts, iron towers, steel structures, and boilers.
2.Specification:
Thickness:3-50mm
Width:20-600mm
| Comparative standard | Grade | C | Si | Mn | Cr | Mo | V | W | P | S | Ni |
| GB | 42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | 0.80-1.20 | 0.15-0.25 | max0.035 | max0.035 | |||
| AISI | 4140 | ||||||||||
| JIS | SCM440 | ||||||||||
| DIN | 42CrMo4/1.7225 | 0.41 | 0.20 | 0.75 | 1.05 | 0.23 | 0.03 | 0.03 | |||
| Dimensions | |||||||||||
| Round bar | |||||||||||
| Dia:16mm~700mm | Length:2m~6m | ||||||||||
| Flat bar | |||||||||||
| Thickness:20mm~500mm | Length:2m~12m | ||||||||||
| *Dimensions can be customized | |||||||||||
| Heat Treatment | |||||||||||
| Perheat treatment | |||||||||||
| 1.Annealing:heating temperature 840-860°C ,heat preservation 2 hours ,cool slowly in furnace, | |||||||||||
| hardness ≤ 217 HBS. | |||||||||||
| 2.Normalizing:heating temperature 850-900°C ,air cooling . | |||||||||||
| 3.High temperature tempering :heating temperature 680-700°C,air cooling,hardness ≤ 217 HBS. | |||||||||||
| Quenching and tempering | |||||||||||
| 1.Quenching: heating temperature 840-880°C,oil cooling, hardness ≥ 53 HRC . | |||||||||||
| Tempering : heating temperature 450-650°C ,air cooling ,hardness 25-40 HRC. | |||||||||||
| 2.Induction quenching :heating temperature 900°C,emulsion cooling,surface hardness ≥ 53 HRC . | |||||||||||
| Tempering :160-180°C,air cooling ,hardness ≥ 50 HRC . | |||||||||||
| Detail information | |||||||||||
| Process | EAF+LF+VD+Forging+(Rolling)+Annealing Condition (optional) | ||||||||||
| Delivery Condition | Hot forged+Rough machined/turned surface | ||||||||||
| MOQ | 1 ton | ||||||||||
| Technical Data | According to customer’s requirements of chemical composition, physical properties and mechanical testing | ||||||||||
| Ultrasonic Test | Ultrasonic test according to SEP 1921-84 G3 D/d E/d | ||||||||||
| Applications | |||||||||||
| Hot extrusion dies, forging die forging hammer, forging press die, precision forging die well as aluminum, copper and alloys die-casting mold. | |||||||||||
Company Profile
SHANGHAI UNITE STEEL
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 famous steel enterprise.
In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china, such as: DAYE Special Steel-a famous steel enterprise with the longest steelmaking history; BAO Steel, and Dongbei Special Steel Group-the biggest special steel manufacturer; TPCO, VALIN-largest seamless steel tube production enterprise; What's more, we have built long, deep and close business relationship with dozens of steel companies, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!
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