Product Description
AISI 4140
High-Tensile Alloy Steel Round bar 4140 Hot Rolled Steel
Grade: AISI 4140, 4130, 5140, 5120
Alloy structural steel: 4140
Executive standard: ASTM A29/A29M-04 4140 steel. This steel has good workability, small processing deformation, and good fatigue resistance. It is a medium hardenable steel. After heat treatment, 4140 has good strength and good comprehensive mechanical properties, good manufacturability, and yield high.
The highest service temperature is 427 degrees Celsius, 4140 strength, hardenability, good toughness, small deformation during quenching, high creep strength and enduring strength at high temperature.
It is used to manufacture forgings that require higher strength and larger quenched and tempered section than 35CrMo steel, such as large gears for locomotive traction, supercharger transmission gears, rear axles, connecting rods and spring clips that are heavily loaded, and can also be used Drill pipe joints and fishing tools for oil deep wells below 2000m, and can be used for molds of bending machines.
Product name | steel round bar | |
Size | O.D | 8-480mm |
Length | 1-12m | |
Standard | AISI,ASTM,GB,DIN,BS,JIS | |
Grade | AISI 4140, 4130, 5140, 5120 | |
Inspection | X-ray inspection, manual ultrasopic inspection,surface inspection,hydraulic testing | |
Technique | Hot Rolled | |
Section Shape | Round | |
Main Market | Southeast Asia, Middle East, Australia,USA,South America,Africa | |
Productivity | 5000 Tons/month | |
Packing | Standard bundle package Beveled end or as per request | |
Surface Treatment | Black Painted or Customized all available | |
Date of Delivery | According to The Specifications And the Quantities Of Each Contract, | |
Method of Payment | T/T L/C | |
Method Of Delivery | Terms According To the <INCOTERMS 2000> for International Trading | |
Remarks | 1.Payment Terms T/T, L/C | |
2.Trade Term:FOB/CFR/CIF | ||
3.Minimum Quantity of Order: 2 Tons | ||
4.Delivery Time:7-15 days after receipt of deposit | ||
1.What is a round bar used for?
Round bars are used in applications that require precision machining, such as motor shafts, fasteners, gear pins, and load-bearing rods. Their uniform shape makes them ideal for rotating parts or CNC machining.
2.Are rebar and round bar the same?
Round steel and other types of rebars, such as deformed bars and square bars, differ in their shape, surface texture, and mechanical properties. Shape: Round steel bars are cylindrical in shape, while deformed bars have ridges or deformations on their surface that provide better grip and bonding with concrete.
3.What is the purpose of a bar?
Bars and pubs are more than places to grab a drink-they're cornerstones of connection and culture. From fostering friendships to supporting local economies, these establishments play a vital role in shaping the social and economic fabric of our communities.
4.What does a round bar look like?
Round Bar is a long, circular solid metal bar that can be used in a wide variety of industrial, commercial, and residential applications. Our branches offer a range of mild steel round bars in 300 grade mild steel, with our standard diameters ranging from 6 to 50mm.
5.What is the difference between round bar and bar?
Steel square bars are best suited for applications that require rigidity, strength, and a uniform shape, such as construction and structural support. On the other hand, round bars excel in dynamic applications, such as rotating machinery, automotive components, and precision-engineered parts.