From the heart of Hamilton’s industrial landscape, Latham Steel has built a reputation as a trusted source for high-grade materials. We are proud to supply Carbon Steel EN-351 Bars, a product that stands up to the demanding needs of New Zealand’s engineering and manufacturing sectors. Our commitment goes beyond mere supply; it’s about providing local businesses with the reliable, high-quality steel foundation they need to build stronger, more durable products and structures, backed by our expert knowledge and dedicated service.
The strength of EN-351 lies in its carefully balanced composition, which typically includes carbon, manganese, and other elements to achieve a specific performance profile. This results in a bar stock known for its excellent tensile strength and good ductility, meaning it can withstand significant force without fracturing. It also offers reliable yield strength and hardness, making it a suitably robust choice for components that must bear heavy loads and resist wear over time, ensuring long-term structural integrity.
| Grade | EN351 |
|---|---|
| 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 |
| Width: 10 to 500mm | |
| Square bar size | 4 to 100mm |
| Angle bar size | 3mm*20mm*20mm~12mm*100mm*100mm |
| 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. |
| 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 |
|
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 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
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 |
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Cut to size on request (tolerance +2/-0 mm). Standard lengths of EN45 Bars 2000 mm up to 6000 mm available
5.0 | 45.0 |
6.0 | 50.0 |
7.0 | 55.0 |
8.0 | 60.0 |
9.0 | 65.0 |
10.0 | 70.0 |
12.0 | 75.0 |
16.0 | 80.0 |
20.0 | 90.0 |
25.0 | 100.0 |
30.0 | 130.0 |
35.0 | 160.0 |
40.0 | 200.0 |
This combination of properties makes EN-351 bars incredibly versatile. You’ll often find them at the core of agricultural machinery, forming critical parts that endure constant stress. They are equally essential in the construction industry for reinforcements and framework, and are a common choice for axles, shafts, and gears within general fabrication. Essentially, wherever a project calls for a tough, dependable steel that provides a perfect balance of strength and machinability, EN-351 bars from Latham Steel deliver the performance needed.
Latham Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Hamilton, New Zealand.
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