A572/S355JR Round Steel Bar

Introduction

文本文字

A572 Steel Bar is a low-carbon, low-alloy high-strength steel produced using electric furnace steelmaking technology, with scrap iron as the primary raw material. Through optimized composition design and strict process control, A572 steel bar achieves high purity and stable, high-quality performance.

Its molten steel casting process provides a dense and uniform internal structure, which contributes to excellent mechanical properties after cooling. As a result, A572 steel bar delivers a strong balance of strength, toughness, and structural reliability.

Due to its low-carbon and low-alloy characteristics, A572 steel bar also offers good weldability, formability, and corrosion resistance. It is widely used in construction, bridges, heavy machinery, and other structural engineering applications where high strength and durability are required.

Product Parameters


Product Name

A572/S355JR Round Steel Bar

Standard

EN/DIN/JIS/ASTM/BS/ASME/AISI, etc.

Common Round Bar Specifications

3.0-50.8 mm, Over 50.8-300mm

Flat Steel Common Specifications

6.35x12.7mm, 6.35x25.4mm, 12.7x25.4mm

Hexagon Bar Common Specifications

AF5.8mm-17mm

Square Bar Common Specifications

AF2mm-14mm, AF6.35mm, 9.5mm, 12.7mm, 15.98mm, 19.0mm, 25.4mm

Length

1-6meters, Size Accept Custom

Diameter(mm)

Hot Rolling Round Bar

25-600

Cold Rolling Square Bar

6-50.8

Hot Rolling Square Bar

21-54

Cold Rolling Hexagon Bar

9.5-65

Cold Rolling Round bar

6-101.6

Forged Rebar

200-1000

Surface Process

Bright, Polished, Black

Other Services

Machining(cnc), Centerless Grinding(cg), Heat Treatment, Annealing, Pickling, Polishing, Rolling, Forging, Cutting, Bending, Small Machining, etc.


Scope of Application


ASTM A572 carbon steel low-alloy steel is widely used as bridge panels, support plates, mechanical mounting plates, etc. for construction equipment, transmission towers, racks and other equipment.


Equivalent Material


EU

German Standard

Japanese Standard

French Standard

British Standard

Canada

Italy

Spain

National Standard

International

Portugal

India

EN

DIN,WNr

JIS

AFNOR

BS

HG

UNI

UNE

GB

ISO

NP

IS

S355JR

St52-3

SM490A

E36-2

50B

350W

Fe510B

AE355B

Q345B

E355C

FE510-B

IS961


Packaging and shipment


imgi_5_content


Company Profile


Shandong Zhifa Steel Co., Ltd is located in Shandong, China. The company was founded in 2010.There are 67 employees, 233 technicians and 15 managers. At present, it mainly produces stainless steel, galvanized, color-coated and carbon steel. lt is a professional precision steel plant, lt has a modern scientific research center,equipped with a complete set of testing methods such as mechanical performance testing, process performance testing, metallographic testing, high-precision carbon and sulfur analysis, as well as a group of high-quality process technicians and inspection personnel.


imgi_5_content