Steel Bar

Key Features

Superior tensile strength and ductility for load-bearing applications in construction
Excellent machinability in grades like 12L14, enabling tight tolerances and smooth finishes
Hot-rolled surface with radius corners for easy welding and forming without cracking
Non-corrosive properties in reinforcing steel rebar, maintaining integrity for up to 100 years
Versatile shapes including round, square, and flat for diverse fabrication needs
Affordable and lightweight compared to other metals, simplifying transport and installation
Pickled and oiled (P&O) options to prevent rust during storage and handling
Custom cut-to-size availability for precise project requirements

Applications

Reinforcing concrete beams, columns, and slabs in residential and commercial buildings
Machining shafts, pins, and fasteners in automotive and aerospace components
Fabricating structural frames and supports for industrial machinery and equipment
Threaded rods for anchoring in marine vessels and plumbing systems
Aesthetic twisted bars in wrought iron gates and railings for architectural projects

Specifications

Material Grade	1018, 12L14, A36 Hot Rolled
Shapes Available	Round, Square, Flat, Hex, Rectangular
Diameter/Thickness Range	1/4" to 12" (custom sizes)
Length Options	Up to 20 ft (cut-to-size available)
Yield Strength	Min 36 ksi (A36); 53 ksi (1018)
Tensile Strength	Min 58 ksi (A36); 63 ksi (1018)
Elongation	Min 20-36%
Surface Finish	Hot Rolled (scaled), Cold Rolled (smooth), P&O

Frequently Asked Questions

Hot rolled steel flat bar provides excellent weldability and formability, making it ideal for structural components in construction and machinery where ease of processing reduces production time.

Carbon steel round bar, especially 12L14 grade, offers superior machinability with sulfur additions for chip-breaking, ensuring high-speed production of precision parts like gears and axles.

Yes, reinforcing steel rebar is designed for concrete tensioning, providing corrosion resistance and structural support that lasts up to 100 years in standard environments.

Type	Carbon Content	Common Grades	Key Properties	Typical Applications
Low Carbon / Mild Steel	≤0.3%	A36, 1018, 1020, 1008	Excellent weldability, ductility, machinability	Structural frames, brackets, general fabrication
Medium Carbon Steel	0.3–0.6%	1045, 4140, 4340	Balanced strength & toughness	Shafts, gears, automotive parts
High Carbon / Tool Steel	>0.6%	D2, O1, A2	High hardness, wear resistance	Cutting tools, dies, punches
Alloy Steel	Varies	4130, 4140, 8620, 4340	Enhanced strength, fatigue resistance	Aerospace, heavy machinery, oil & gas
Stainless Steel	Varies	304, 316, 17-4PH	Corrosion resistance	Food processing, marine, medical
Rebar Grades	Varies	Grade 40, 60, 75 (ASTM)	Yield strength in ksi	Concrete reinforcement

Steel Bar

Steel Cutting

We has more than ten sets of circular saw machines and band saw machines, which can cut a large variety of steel materials (such as carbon steel, high carbon steel, alloy steel, tool steel, seamless steel tubes, free cutting steel, stainless steel, square bars, hexagonal bars, special shaped steel, steel plate, etc.).

Features of Steel Material Cutting Service

Rapidity.
Quality.
High Efficiency.
Time & Cost Saving.
Customer-oriented Service.

Cutting Tolerances

CNC Circular Saw Cutting

Item	mm	inch
Outer Dia.	8~150	0.31~4.13
Length Tolerance	0~0.2	0~0.007
Verticality Tolerance	0~0.2	0~0.007

CNC Band Saw Cutting

Item	mm	inch
Outer Dia.	8~600	0.31~23.62
Length Tolerance	0~1.0	0~0.039
Verticality Tolerance	0~1.0	0~0.039

Steel Used for construction

Selecting the right wear material is critical for service life and operating cost. Below is a practical comparison of common wear-resistant materials.

Commodity name	Main size	Standard	Main steel grade	Main application	Remark
High quality carbon steel	Ф14~Ф130	GB/T 699-1999、JIS、ASTM、SAE、DIN Standard and technical agreement for users	08~85、15Mn~70Mn、S10C~S58C、1006~1095CF53、C45, etc.	Machining, forge, automobile, motorcycle, agricultural machinery, mine and heavy-duty machinery, rolling stock, petrochemical industry, etc.	20# forged steel is certified as the physical quality of products “Gold Award Certification”
Structural alloy steel	Ф14~Ф130	GB/T 3077、JIS、ASTM、SAE、DIN and technical agreement for users	Mn2.cr、SiMn、B、MnB、MnVB、CrMo、CrMoV、CrV、CrMn、CrMnSi、CrMnMo、CrMnAl、SC Series steel and various series of domestic and foreign structural alloy steel grade	Structural pipe steel billet and machinery steel
The hardenability of structural steel, pinion steel	Ф14~Ф130	GB/T 5216-2004、ASTM A304、JIS G4052、SAE、DIN and technical agreement for users	MnBH、MnTiBH、CrMoH、CrMnMoH、CrMnTiH、CrNiMoH、SCrH、SCMH、16MnCr5、20MnCr5 and various series of pinion steel grade	Automobile, motorcycle, agricultural machinery, mine and heavy-duty machinery, locomotive and rolling stock and various gears and gear axle steel
Spring steel	Ф14~Ф130	GB/T 1222、ASTM A689、JIS G4801、DIN 17221 and technical agreement for users	5~85、65Mn、SiMnVB、Si2Mn、Si2Cr、Si2CrV、SiCr、CrMn、CrV、CrMnB、Si2CrVAT、SUP3~SUP13(A)、38Si7、55Cr3、51CrV44 series of domestic and foreign spring steel grade	Automobile, motorcycle, agricultural machinery, mine and heavy-duty machinery, rolling stock, power system and various spring steel
Bearing steel	Ф14~Ф80	GB/T 18254-2002、ASTM A295、JIS G4805、DIN 17230 and technical agreement for users	GCr15、GCr15-Y、GCr15-G、GCr15SiMn、GCr15SiMo、SUJ2、100Cr6 series of domestic and foreign bearing steel grade	Automobile, motorcycle, agricultural machinery, mine and heavy-duty machinery, rolling stock and various machinery bearing steel
Carbon tool steel	Ф14~Ф130	GB/T 1298-2008 and technical agreement for users	T7~T13、T8Mn series of domestic and foreign carbon tool steel	Wood working tool, small tool, electrical, lathe tool, screw processing tool, stamping die, measuring tool, paper mould, cutter, etc.
Alloy tool steel	Ф14~Ф120	GB/T 1299-2000 and technical agreement for users	9SiCr、8MnSi、5CrMnMo、5CrNiMo、3Cr2Mo、40MnMoV、LT-B2~LT-B6 series of domestic and foreign low alloy tool steel	Rock drill rod, cutter, cold working die, hot working die, plastic mould, cold stamping and hot extrusion mould, steel for impact resistance steel ball, etc.
Pipe steel billet	Ф30~Ф130	YB/T 5222-2004(2009)、YB/T 5221-1993、YB/T 5137-2007、GB/T 1591-2008、GB 13447-2008、JIS、ASTM、API and technical agreement for users	Excellent carbon and low alloy pipe steel billet: 08~85、15Mn~70Mn、Q345B、St30Al、A179, etc.	Make mechanical structure pipe, medium and low pressure pipe, high pressure pipe, oil well tube line pipe, automobile oil pipeline, automobile shaft-enclosing tube, oil drill collar tube, seamless cylinder, geological tube, etc.	API Q1, Certification 15CrMoG、Q345B is certified as the physical quality of products “Gold Award Certification”.
			Alloy pipe steel billet: Mn2、Cr、SiMn、CrMo、CrMoV、CrMn、CrMnSi、34CrMo4、38Mn2V, etc.
			Oil well pipe steel billet: 25Mn2、28 Mn2、30 Mn2、37Mn5、33 MnB、42 MnMo7, etc.
			Pipe steel billet for high-pressure boiler: 20G、20MnG、25MnG、SA-106、SA-210A1、SA-210C、12Cr1MoVG、12Cr2MoG、15CrMoG、T11、T12、T22, etc.

Commodity name	Main size	Standard	Main steel grade	Main application
Chain steel, link steel	Ф14~Ф130	GB/T 18669-2012 GB/T 549-2008 GB 10560-2008 JIS G 3105-2004 DIN 17115-2012 ASTM and technical agreement for users	CM490(AM2), CM690(AM3), 20MnV, 25MnV, 23MnSiv, 23Mn2NiMoA, 25MnSiNiMoV, 25MnSiMoVA, 25MnSiNiMoA, 23MnNiCrMo54 and various series of domestic and foreign grade of link steel	Making lifting link, electric welded anchor cable, high tensile round link chain for mining, etc.
Weathering steel, corrosion resisting steel	Ф14~Ф130	GB/T 4171-2008 and technical agreement for users	Q355GNH, SPA-H, 09CuPCrNiA, 10(HSC), 09CrCuSb, 09MnNiD etc.	Mainly making rolling stock, container, bridge, oil equipment, etc.
Easily cut steel	Ф14~Ф130	GB/T 8731-2008 standards and technical agreement for users	Y12, Y15, Y40Mn, SAE1141, SAE1117, etc.	Automobile, construction machinery, etc.
Hot rolled high strength steel	Ф14~Ф130	GB/T 15712-2008 technical agreement or GB/T 15712-2008	38MnVS, 49MnVS3, 48MnV, C70S6, 42MnVBS, 40Mnvs, 36MnVN, etc.	Automobile, construction machinery, etc.
Continuous casting round billet	Ф360 Ф400 Ф500 Ф600	GB/T 1591-2008 GB/T 699-1999 GB/T 3077-1999 GB/T API GB/T 1299-2000 GB/T 18254-2002 and technical agreement for users	High strength low alloy steel, carbon constructional quality steel, alloy constructional steel, pipe steel billet, low alloy tool steel, bearing steel, etc.	Forging, pipe billet and various round forging steel
Continuous casting billet	150 x 150 160 x 160 220 x 260 370 x 490 sections	Technical agreement	High strength low alloy steel, carbon constructional quality steel, alloy constructional steel, low alloy tool steel, bearing steel, spring steel, etc.	Hot rolling, forging and various round forging steel
Other materials	Ф14~Ф130	Technical assistance agreement	Cooperative develop new assortments and new kinds of steel