A36 Carbon Steel Bar

A36 is a low-carbon steel containing trace amounts of manganese, phosphorus, sulfur, silicon and other elements such as copper. A36 has good weldability and high yield strength, and is the most specified structural steel plate by engineers. ASTM A36 is most commonly manufactured as a variety of structural steel parts. This grade is used for welded, bolted or riveted construction of bridges and buildings, as well as for general structural purposes. Due to its lowest yield point, A36 can be used to design lighter-weight structures and equipment, and provide good weldability.

Classification ：

Carbon Steel Bar

Keywords ：

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A36 Carbon Steel Bar Description

Product Parameters

Product Name	A36 Carbon 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.

Chemical Composition

C	Cu	Fe	Mn	P	Si	S
0.25～0.290	0.20	98.0	1.03	0.040	0.280	0.050

Mechanical Properties

A36	Limit Tensile Strength	Tensile Strength, Yield Strength	Elongation at Break(Unit: 200mm)	Elongation at Break(Unit: 50mm)	Modulus of Elasticity	Bulk Modulus(Typical for Steel)	Poisson's Ratio	Shear Modulus
Metric	400～550MPa	250MPa	20.0%	23.0%	200GPa	140GPa	0.260	79.3GPa
Imperial	58000～79800psi	36300psi	20.0%	23.0%	29000ksi	20300ksi	0.260	11500ksi

Physical Performance

Physical Performance	Metric	Imperial
Density	7.85 g/cm3	0.284 lb/in3

Scope of Application

Bolted, riveted or welded structures for bridges, buildings and oil drilling rigs.
Used for forming storage tanks, silos, bearing plates, fixtures, rings, templates, fixtures, sprockets, cams, gears, bottom plates, forgings, decoration engineering, piles, brackets, automobiles and agricultural equipment, frames, mechanical parts, etc.

Equivalent Material

National Standard GB	European Standard EN	American Standard ASTM	German Standard DIN,WNr	Japanese Standard JIS	French Standard AFNOR	British Standard BS	Canada HG
Q235B	S235JR	A283C	St37-2	SM400A	E24-2	40A/40B	230G
Italy UNI	India IS	Switzerland SS	Australia ONORM	Norway NS	Spain UNE	International Standards ISO	Portugal NP
Fe360B	IS2062	1311/1312	RSt360B	NS12123	AE235B-FN	E235B/Fe360B	FE360-B

Packing and delivery

We are committed to providing customers with one-stop steel solutions, including product consulting, procurement, logistics, after-sales service, etc. Our professional team has rich industry experience and resources, which can quickly respond to customer needs and provide customized procurement solutions.

WHY CHOOSE US

QUALITY ASSURANCE

Full-process quality control + international certification, support for third-party testing, traceability, and a pass rate of 99.8%+.

ABUNDANT INVENTORY

Warehouses in multiple ports cover a full range of product categories, with high turnover of standard specifications and immediate order fulfillment.

FAST SHIPPING

Direct shipping from multiple ports + partnerships with leading logistics providers, shipment can be arranged within 24 hours, with ocean shipping time as fast as 3-5 days.

PREMIUM SERVICE

After-sales service points are located in core markets, providing 12-hour response times, technical guidance, and full-lifecycle support.

FACTORY APPEARANCE

With a registered capital of 35 million yuan, the company has 4 international advanced production lines and more than 100 employees.