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A572/S355JR Round Steel Bar

A572 round steel bar is a high-strength, low-alloy steel, ideal for structural applications. Known for its durability and weldability, it is widely used in bridges, buildings, and heavy machinery, offering excellent corrosion resistance and reliability.

PRODUCT DETAILS

A572/S355JR Round Steel Bar Description

A572 round steel bar is a high-strength, low-alloy steel designed for structural and industrial applications. Known for its excellent tensile strength, toughness, and weldability, it is commonly used in the manufacturing of bridges, buildings, and heavy machinery. This steel bar provides superior resistance to atmospheric corrosion, making it ideal for outdoor and construction projects. A572 round steel bar meets industry standards, offering cost-effective solutions without compromising quality or performance. Its versatility, combined with reliable durability, makes it a top choice for engineering, construction, and manufacturing industries, ensuring long-lasting, strong, and reliable components.

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 6.35×12.7mm, 6.35×25.4mm, 12.7×25.4mm
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.

Chemical Composition

A572 C Mn P S Si
Grade 42 0.21 1.35 0.03 0.03 0.15-0.4
Grade 50 0.23 1.35 0.03 0.03 0.15-0.4
Grade 60 0.26 1.35 0.03 0.03 0.40
Grade 65 0.23-0.26 1.35-1.65 0.03 0.03 0.40

Mechanical Properties

A572 Yield Strength (Ksi) Tensile Strength (Ksi) Elongation % 8 inches
Grade 42 42 60 20
Grade 50 50 65 18
Grade 60 60 75 16
Grade 65 65 80 15

Physical Performance

Physical Performance Metric Imperial
Density 7.80 g/cc 0.282 lb/in³

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

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