SAE 1045 4140 4340 8620 8640 Alloy Steel Round Bar AISI 4140 Round Steel Bar Price

Sep 02, 2025

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info-1079-450

 

Standard

GB, AISI/JIS, SUS, UNS
Material Grade:
200 series: 201,202,202Cu,204Cu,
300 series: 301,303/Cu,304/L/H,304Cu,305,309/S,310/S,316/L/H/Ti,321/H,347/H,330,
400 series: 409/L,410,416/F,420/F,430,431,440C,441,444,446,
600 series: 13-8ph,15-5ph,17-4ph,17-7ph(630,631),660A/B/C/D,
Duplex: 2205(UNS S31803/S32205),2507(UNS S32750),UNS S32760,2304,904L
Nickle alloy: 253MA, 254SMo, nitronic 50, nitronic 60, nimonic 75, nimonic 80A, nimonic 90, inconel 600,i nconel 601, inconel 625, inconel 718, inconel 725, alloy 20, alloy 28, incoloy 800, incoloy 825/H
, hastelloy C22, hastelloy C276, hastelloy X, monel 400, monel k-500 etc.
Other: 1.4057, 1.4313, 1.4362, 1.4372, 1.4378, 1.4418, 1.4482, 1.4597, 1.4615, 1.4662, 1.4669,
1.4913, 1.4923 etc.
Length 3000mm, 6000mm, or according to the customer's requirement.
Brand Name  
Type Round bar, square bar, flat bar, hexagon bar, angle bar, channel bar, threaded bar
Use

Petroleum, chemical, construction, textile, medicine, aviation, aerospace,
railway, highway, landscape protection, metallurgical machinery and
other fields.

Certificate ISO9001
Surface bright, pickled, black
Technique Forged/Hot Rolled/Hot Drawn/Cold Rolled
Shape Round bar Diameter: 1mm~400mm
Angle bar Size: 1mm*20mm*20mm~20mm*100mm*100mm
Square bar Size: 3mm*3mm~500mm*500mm
Flat bar Thickness: 1mm~500mm
Width: 10mm~1000mm
Hexagonal Size: 1mm~100mm
Package

Standard seaworthy packing(plastic&wooden) or according to the customer's requests

Delivery time 7-30days, according to the quantity
Productivity 5500 tons/month
Remarks OEM/Sample/Mixed item/Factory visit is welcome

 

1.what is the Alloy Steel Round Bar?

An Alloy Steel Round Bar is a cylindrical bar of steel that has one or more alloying elements (like chromium, nickel, and molybdenum) added to it, enhancing its mechanical properties beyond those of plain carbon steel. These additions improve its strength, hardness, toughness, wear resistance, and resistance to heat and corrosion, making it suitable for demanding applications in industries like automotive, aerospace, construction, and manufacturing.

 

2.Is alloy steel better than steel?

For projects requiring high performance in challenging conditions, alloy steel is the better choice. Meanwhile, carbon steels remain indispensable for basic construction and low-stress applications.

 

3.What is 4140 round bar?

4140 is a widely used medium carbon steel. A general purpose alloy, offering the right combination of strength, toughness and hardness with good machinability. 4140 can be quenched and tempered to a broad range of strength levels.

 

4.Which is better aluminum or alloy steel barbells?

Stainless Steel: Stainless steel barbells offer excellent corrosion resistance and require less maintenance than steel barbells. However, they may be more expensive. Aluminum: Aluminum barbells are lightweight and suitable for beginners, but they may not be strong enough to handle heavy loads and are prone to bending.

 

 

5.Is alloy steel very strong?

Introduction. Within the steel family, alloy steel stands out for its exceptional strength, achieved through deliberate alloying with elements like chromium and nickel. This strategic composition enhances its mechanical properties, making alloy steel indispensable in demanding applications where reliability is key.