Hot Rolled AISI 4140 4130 Low Carbon Alloy Steel Solid Round Rod Steel Bars with Competitive Price

Oct 10, 2025

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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,

Time Start To Begin When We confirm the Date of the Earnest or L/C

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

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1.What is a round bar used for?

Round bar is a steel bar with a smooth surface which is used for construction that does not request high-strength reinforced concrete works. It is widely used on beam and column stirrups, pipelines, roads, small and medium-sized projects.

 

2.What is the difference between a round bar and a rod?

Round bars range from 1/8 to 6 inches in diameter, while rods are finer, from 1/16 inches to 1 inch. Each metal has different uses and requires specific crafting techniques, resulting in varying sizes.

 

3.What is a circular bar called?

The most common shapes are round bar (also called rod), rectangular bar (including square bar, the special case of equal sides), and hexagonal bar (usually called hex bar for short). Tube and pipe are similar, but have hollow centers and are traditionally not called "bar" in industrial usage.

 

4.How strong is a round bar?

Round Bars: Round bars handle compressive loads very well because their shape helps distribute stress evenly. This makes them especially good for applications where the pressure is centred, as it helps them resist bending or deforming under heavy loads.

 

5.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.