Carbon Steel EN-1A Bars

Brian Fasteners supplies Carbon Steel EN-1A Bars from Houston—a hard, versatile steel applied in general engineering and automotive parts. EN-1A is oil-hardenable with good machinability and adaptable heat-treatment properties. Our bars are manufactured to BS 970 and ASTM A29 standards, and precision-made with full certification and inspection. EN‑1A bars are provided in special lengths and are appropriate for a broad range of engineering applications.

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Carbon Steel EN-1A Round Bars

Carbon Steel EN-1A Hex Bars

Carbon Steel EN-1A Series Rods

What is Carbon Steel EN-1A Series Bars ?

EN-1A has ~0.37–0.45% C and 0.30–0.60% Mn with minor Si, P, and S. Tensile strength is 550–700 MPa after oil hardening and tempering; yield is around 300–400 MPa. It has good toughness and average wear resistance with machinability in the annealed condition.

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Carbon Steel EN-1A Bars Specifications

Grade	EN1A Round Bar
EN1A Square bar size	4 to 100mm
Carbon Steel EN-1A Hollow Bar	32mm OD x 16mm ID to 250mm OD x 200mm ID)
CS EN-1A Hex Bar size	2-100mm A/F
EN1A Angle bar size	3mm20mm20mm~12mm100mm100mm
Carbon Steel EN-1A Rectangles Size	33 x 30mm to 295 x 1066mm
CS EN-1A Flat bar size	Thickness: 2 -100mm
CS EN-1A Flat bar size	Width: 10 to 500mm
EN1A Channel Bar	80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness
Carbon Steel EN-1A Section	3.0 to 12.0mm thickness
CS EN-1A Round bar size	Diameter: 3-~800mm
EN1A Billet Size	1/2″ to 495mm Diameter
Carbon Steel EN-1A Round Bar Standard Dimensions	Diameter / Height:
EN1A Surface	Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline
Carbon Steel EN-1A Tolerance	H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
CS EN-1A Technique	EN1A Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod
EN1A Condition	Hardened & tempered, annealed
Finish	Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
Form	EN1A Round, Rod, T-Bar, Nickel Alloy Channel Bar, Precision Ground Bar, Nickel Alloy Flat Bar, Nickel Alloy Square Bar, Nickel Alloy Blocks, Nickel Alloy Round Rod, Nickel Alloy Rings, Nickel Alloy Hollow, Nickel Alloy Triangle, Rectangle, Hex (A/F), Nickel Alloy Threaded, Half Round Bar, Profiles, Nickel Alloy Billet, Nickel Alloy Ingot, I/H Bar, Forging etc.
Processing	Bar cutting to 650mm
Our EN1A Round bar conforms to NACE MR0175/ISO 15156

Chemical Compositions of Carbon Steel EN-1A Bars

230M07 (EN1A) Specification Chemical composition
Carbon	0.15% max
Manganese	0.90-1.30%
Silicon	0.40% max
Sulphur	0.25-0.35%
Phosphorus	0.070 Max
Chromium	–
Molybdenum	–
Nickel	–
Lead	0.15-0.35% (Where specified)

Mechanical Properties of Carbon Steel EN-1A Bars

Max Stress	370-480 n/mm2 Min	dependent on ruling section
Yield Stress	240-400 n/mm2 Min	dependent on ruling section
0.2% Proof Stress	225-360 n/mm2 Min	dependent on ruling section
Elongation	6-10% Min	dependent on ruling section

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Carbon Steel EN-1A Bars Types

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Equivalent Grades Carbon Steel EN-1A Bars

STANDARD	UNS	DIN
EN1A Round Bar	–	–

Frequently Asked Questions (FAQ)

What are the available thicknesses for Carbon Steel EN-1A Bars?

Carbon Steel EN-1A Bars are typically available in thicknesses ranging from 6 mm to 300 mm or more, depending on the manufacturer and specific requirements of the application.

What are the mechanical properties of Carbon Steel EN-1A Bar?

Carbon Steel EN-1A bar has high machinability, tensile strength of 400-550 MPa, yield strength of 280 MPa, hardness of 130-180 HB, and excellent ductility for general engineering applications.

What is Carbon Steel EN-1A Bar used for?

Carbon Steel EN-1A Bars are used for manufacturing precision components like gears, shafts, spindles, and fasteners due to their excellent machinability, surface finish, and suitability for high-speed machining applications.

Carbon Steel EN-1A Bars Uses

Used in couplings, studs, bolts, spindles, pins, and shafts. EN‑1A bars are typical in general fabrication, agricultural parts, and machine components. Even utilized for dowels, small diameter shafts, and general hardware. Brian Fasteners provides EN‑1A bars designed for heat-treatment or machining to client specifications.

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