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4130 Round Bar
Product Description

Increased carbon and manganese content in carbon steel improves strength, hardness and wear resistance after heat treatment. As the carbon content increases, the steel becomes stronger and harder. This makes carbon steel round bars a reliable choice for applications requiring toughness and durability.


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Product Features

Main grades and specifications of carbon steel rod materials
1. Hot-rolled steel bars: Hot-rolled steel bars are divided into different grades and specifications such as low carbon steel, medium carbon steel and high carbon steel. Among them, low carbon steel rods (such as Q235B) are widely used in building structures, bridges, ship load-bearing and other fields; medium carbon steel rods (such as 45# steel) are suitable for mechanical parts, bearings, etc.; high carbon steel rods (such as 55# steel ) is used to make parts with higher strength requirements such as springs.
2. Cold-drawn steel rods: Cold-drawn steel rods mainly include 10, 20, 35, 45 and other grades and specifications. As the name suggests, cold-drawn steel bars are made through cold working processes and have smooth surfaces, precise dimensions, and high strength. Cold drawn steel bars are widely used in automobiles, machinery, aerospace and other fields.
3. Forged steel rods: Forged steel rods are divided into different types such as alloy steel, carbon steel, bearing steel, tool steel, etc. The forging process makes it have high strength and toughness, and it is widely used in heavy industry, machinery manufacturing and other fields.

Product Name Carbon Steel Bar

Diameter

5.0mm-800mm
Length 5800,6000 or customized
Standard GB,GOST,ASTM,AISI,JIS,BS,DIN,EN
Surface Black skin,Bright,etc
Material S235JR,S275JR,S355JRS355K2,A36,SS400,Q235,Q355,C45,ST37,ST52,4140,4130,4330,etc
Thickness tolerance ±0.1mm
Technology Hot rolling, Cold drawing, Hot forging
Application Widely used in machinery manufacturing, building structures, automobile manufacturing, chemical industry, shipbuilding, etc..
Shipment time Within 15-20 working days after receiving the deposit
Export packing Waterproof paper, and steel strip packed.Standard Export Seaworthy Package.Suit for all kinds of transport,or as required

We produce various types of angle steel, H-shaped steel, I-shaped steel, channel steel and otherprofiles.lf necessary, please contact our business personnel in timeprofiles.We strictly implement the product factory inspection system. For the delivered steel products, the company provides quality certificates to ensure their quality.

In order for the products to arrive safely, we choose sturdy sea-resistant packaging or according to your needs. Professional and sturdy packaging to protect plates, coils, profiles, bars, pipes, wire rods etc. to the greatest extent and avoid bumps and scratches during transportation.

PROVIDE QUALITY PRODUCTS

We will continue to provide customers with first-class services, first-class products and strive to do the best, Create value for the customer.
We have passed ISO 9001, CE, SGS quality management system certification and testing certifications from various domestic and foreign authoritative organizations. We always adhere to strict quality management to ensure that the quality of our products reaches international standards.

Q1:Can I get samples before order ?
A:Yes, of course. Usually our samples are free,we can produce by your samples or technical drawings.
Q2:Can I go to your factory to visit?
A:Of course, we welcome customers from all over the world to visit our factory.
Q3:What product information do I need to provide?
A:You need to provide the grade, length, width, diameter, thickness, coating and the number of tons you need to purchase.
Q4:Does the product have quality inspection before loading?
A:Of course, all our products are strictly tested for quality before packaging, and unqualified products will be destroyed.we accept  third party inspection.
Q5:How do we trust your company?
A:We specialise in steel business for years , headquartered in Shandong, China, you are welcome to investigate in any ways, by all means, we have CE and ISO certificate, quality can be guaranteed, the most important point is that we ship enough weight as per the order.
Q6:Do you have any MOQ limit for products order?
A:Our minimum order quantity is 25 tons.

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