Carbon Steel EN-45 Bars

Luois Metals offers EN‑45 medium-carbon, nickel-alloyed steel bars to customers in the manufacturing industry within Houston and the entire country. The bars, manufactured according to ASTM A514 and BS 970 specifications, undergo meticulous inspection to provide high-quality alloy steel performance. EN‑45 provides increased strength and hardness without sacrificing machinability compared to basic carbon steel. Provided in a range of sizes and tempers, EN‑45 bars are suitable for structural, mechanical, and abrasion-resistant applications. Luois Metals facilitates quick delivery, test certificates, and technical support to aid in enterprise-level projects in heavy machinery, earthmoving plant equipment, and pressure vessel manufacturing.

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Carbon Steel EN-45 Round Bars

Carbon Steel EN-45 Hex Bars

Carbon Steel EN-45 Series Rods

What is Carbon Steel EN-45 Series Bars ?

EN‑45 steel contains about 0.43–0.50% carbon, 1.10–1.40% manganese, and 1.20–1.60% nickel; in addition to trace amounts of chromium and molybdenum. The alloy attains tensile strength of 700–850 MPa, yield strength of 450–550 MPa, with elongation of about 12–16%. It possesses Brinell hardness of 200–250 HB. Nickel increases toughness, even in cold applications. EN‑45 accommodates heat treatment such as quenching and tempering, resulting in maximum hardness and resilience. It satisfies ASTM and BS standards, making it suitable for structural, mechanical, and welded assemblies.

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Carbon Steel EN-45 Bars Specifications

Grade	EN45
Specification	BS970 1.0904 55Si7 55S6 55Si2Mn ASTM 9255
Round bar size	Diameter: 3-~800mm
Hex Bar size	2-100mm A/F
Flat bar size	Thickness: 2 -100mm
Flat bar size	Width: 10 to 500mm
Square bar size	4 to 100mm
Angle bar size	3mm20mm20mm~12mm100mm100mm
Section	3.0 to 12.0mm thickness
Channel Bar	80 x 40mm to 150 x 75mm section; 5.0 to 6.0mm thickness
Hollow Bar	32mm OD x 16mm ID to 250mm OD x 200mm ID)
Billet Size	1/2″ to 495mm Diameter
Rectangles Size	33 x 30mm to 295 x 1066mm
Finish	Cold (bright) drawn, centreless ground,smooth turned, peeled, slit rolled edge, hot rolled, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
Tolerance	H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements
Surface	Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline
Condition	Hardened & tempered, annealed
Technique	EN45 Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod
Processing	Bar cutting to 650mm
Form	EN45 Welding Rod, Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc.
Our EN45 round bar conforms to NACE MR0175/ISO 15156

Chemical Compositions of Carbon Steel EN-45 Bars

Element	En42J
C	0.75 – 0.90%
Mn	0.50 – 0.90%
Si	0/1 – 0.35
S	0.04% Max
P	0.04% Max

Mechanical Properties of Carbon Steel EN-45 Bars

ULTIMATE TENSILE STRENGTH, S. (MPA)	621
Modulus of elasticity, E (Gpa)	204
Fatigue strength coefficient, of (Mpa)	948
Fatigue strength exponent, b	-0.092
Fatigue ductility coeffient ,ef	0.26
Fatigue ductility exponent,c	-0.445

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Carbon Steel EN-45 Bars Types

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size chart Carbon Steel EN-45 Bars

Type	SIZES (mm)	SIZES (Inches)	ISO Tolerance
Cold Drawn and Polish	3.00 – 75.00	1/8″ – 3.00″	h8-h9-h10-h11
Cold Drawn and Ground	10.00 – 75.00	5/6″ – 2.50″	h8-h9-h10-h11
Peeled and Polished	40.00 – 150.00	1.50″ – 6.00″	h11, h11-DIN 1013
Peeled and Ground	20.00 – 50.00	3/4″ – 2.00″	h9-h10-h11

Frequently Asked Questions (FAQ)

What are the main uses of Carbon Steel EN-45 Bars and Rods?

EN-45 Bars and Rods are primarily used in automotive components like springs, shafts, and crankshafts, as well as in engineering tools and machinery parts requiring high strength and wear resistance.

What are the mechanical properties of EN-45 Bars and Rods?

EN-45 Bars and Rods offer excellent tensile strength (700-900 MPa), yield strength (450-600 MPa), and toughness, making them ideal for high-stress applications.

Can Carbon Steel EN-45 Bars and Rods be customized?

Yes, we offer customized Carbon Steel EN-45 Bars and Rods in various sizes and specifications to meet specific application needs.

Carbon Steel EN-45 Bars Uses

EN–45 bars find applications in heat-treated components like shafts, gears, couplings, studs, and hydraulic components demanding high strength and impact properties. Its enhanced toughness and weldability qualify it for use in mining machinery, pressure vessels, and structural frames. It is also utilized for forged components, machine parts used in construction machines, cranes, and heavy vehicles. EN‑45 alloy content ensures applicability in low-temperature conditions like chilled storage and seashore environments. Suitable for mechanical and structural usage requiring tough performance against stress without compromising material integrity.

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