A572/S355JR Round Steel Bar

OriginChina
Delivery Time≥7 days
DemandCustomizable
StandardASTM, AISI, JIS, GB, DIN, EN
MOQ 1 Ton

Product Description

Stock Display

Inspection and Packaging

A572/S355JR Round Steel Bar Description

A572 steel bar is made of a low-carbon, low-alloy high-strength steel employing the electric furnace steelmaking technology. So the main component is scrap iron. Resulting from its reasonable composition design and strict process control, A572 steel bar is widely favored for high purity and excellent performance. Its molten steel pouring manufacturing method not only gives the steel coil good density and uniformity, but also ensures that the steel bar has superior mechanical properties after cooling. A572 carbon steel bar is widely used in construction, bridges, heavy machinery and other fields. At the same time, it shows outstanding performance in welding, forming and corrosion resistance with its low carbon and low alloy characteristics.

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

factory display steel CJM Steel Group Ltd

Steel product display cjmsteel CJM Steel Group Ltd

Steel product inspection CJM Steel Group Ltd

微信图片20250303171026副本 CJM Steel Group Ltd

FAQ

Q: What is your company’s main products/services?

A: We are a professional manufacturer for Carbon Steel, Alloy Steel and Profile products. We have the experience of steel business for more than 10 years and our products are exported to Mid East,South America,Southeast Asia,Africa,South and East Asia etc.

Q: Can I go to your factory for a visit?

A: Of course, we welcome customers from all over the world to visit our factory.

Q: What are your terms of payment?

A: 30% T/T deposite and 70% balance before shipment.

Q: What is your delivery time?

A: For stocks,we could transport the goods to loading port within 7 days after we received the deposit; For production,it usually takes about 15-30 days after receiving the deposit.

Q: Do you provide samples? Are they free or paid?

A: Samples are available for free,but the courier freight will be covered by customer account.

Q: Do you accept the third party inspection?

A:Yes, we fully accept ‌third-party inspections.

Q: Why should I buy from you not from other suppliers?

A: Integrating the superior resources of China’s steel industry, we provide customers with high-quality steel products at preferential prices, and can ensure that the goods are delivered to customers in a timely manner.

Q:How can you guarantee quality?

A: Always a pre-production sample before mass production;Always 100% inspected before shipment

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