Our hot-rolled flat bars stand out for their excellent quality, especially in smaller profiles, high-precision finishes and superior mechanical properties. Upon request, we produce flat bars with either square or rounded edges, as well as flat bars suitable for galvanizing, customizing them for various industrial applications.

Sides section according to merchant rolled shape

Width from 30 to 120 mm

Thickness from 3 to 13 mm

— It is possible to produce any intermediate sections (section and length), also for drawing.

— Production of flat bars from 4 to 6,5 meters with permissible variation of -0 +200 mm (CLOSE: 0/+50 mm).

— Production of bars of length. up to 6570 mm (exceptionally 6720 mm without stop).

— Finishing: squared or rounded edge.

⇒ TYPES OF STEEL (click here)

CATEGORY	COMMERCIAL QUALITY	CERTIFICATION	STANDARDS	KEY FEATURES	MAIN APPLICATIONS
General Construction Steels	S235JRC S235J0C S235JR S275JR S355 J0 S355 J2	1608 CPR P268 CE	EN10025 EN10058	Good weldability, moderate mechanical strength	Metal structures, steelwork, machinery
Corten construction steels	S235J0W S355J0W S235J2W S355J2W	1608 CPR P268 CE	EN10025-5 EN10058	High resistance to atmospheric corrosion, with excellent durability, machinability and low maintenance requirements	Used in architecture, infrastructure, railway, maritime and industrial sectors
Carbon (C) Heat Treatable Steels	C60 C45 C48 C40 C50	ROLLING ON DEMAND	EN 10083-2 EN10058	High strength after quenching and tempering, good machinability	Mechanical components, shafts, gears
Boron Heat Treatable Steels	30MnCrB5 27MnCrB5	ROLLING ON DEMAND	EN 10083-3 EN10058	Greater hardenability, wear resistance	Blades, agricultural components, automotive
Mn-Si and Mn-Si-Cr Heat Treatable Steels	20 MnSi7 50 Si7 55 Si7 60 SiCr 7 60Si7	ROLLING ON DEMAND	EN 10089 EN10058	High mechanical strength, good toughness	Parts subjected to high stress, crankshafts

Laminati Mercantili - Barre laminate a caldo - Laminazione a caldo – We can supply steels in different grades or with custom dimensions, including intermediate sections and/or widths.
– Upon request, we also provide steels suitable for galvanization.
– All our products are made from certified recycled steel containing at least 90% recycled content.
– The material is supplied in hot-rolled condition, without any heat treatment.

Cutting Appearance

Cold shearing with flat knives; square-cut ends.

⇒ Dimensional chart
⇒ Flat bars’ weight - Weight (Kg/m)
⇒ Permissible variation

Thickness	(mm)	3	4	5	6	7	8	9	10	11	12	13
Width	30	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	35	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	40	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	45	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	50	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	55	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	60	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	65	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	70	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	75	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	80	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	85	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	90	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	95	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	100	⦿	⦿	⦿	⦿	⦿	⦿	⦿	⦿
Width	110	⦿	⦿	⦿	⦿	⦿	⦿
Width	120	⦿	⦿	⦿	⦿	⦿	⦿

Thickness	(mm)	3	4	5	6	7	8	10	12	13
Width	30	0.71	0.94	1.18	1.41	1.65	1.88	2.36
Width	35	0.82	1.10	1.37	1.65	1.92	2.20	2.75
Width	40	0.94	1.26	1.57	1.88	2.20	2.51	3.14	3.77
Width	45	1.06	1.41	1.77	2.12	2.47	2.83	3.53	4.24
Width	50	1.18	1.57	1.96	2.36	2.75	3.14	3.93	4.71	5.10
Width	55	1.30	1.73	2.16	2.59	3.02	3.45	4.32	5.18
Width	60	1.41	1.88	2.36	2.83	3.30	3.77	4.71	5.65
Width	65	1.53	2.04	2.55	3.06	3.57	4.08	5.10	6.12
Width	70	1.65	2.20	2.75	3.30	3.85	4.40	5.50	6.59
Width	75	1.77	2.36	2.94	3.53	4.12	4.71	5.89
Width	80	1.88	2.51	3.14	3.77	4.40	5.02	6.28
Width	85	2.00	2.67	3.34	4.00	4.67	5.34	6.67
Width	90	2.12	2.83	3.53	4.24	4.95	5.65	7.07
Width	95	2.24	2.98	3.73	4.47	5.22	5.97
Width	100	2.36	3.14	3.93	4.71	5.50	6.28
Width	110	2.59	3.45	4.32	5.18	6.045	6.91
Width	120	2.83	3.77	4.71	5.65

Width*		Thickness** 3÷12 mm		Lenght (Min 4 m, Max 6,5 m)		EN 10058
Nominal value	Tolerances ∓	for width of	Thickness Tolerances	Current	Restricted	Straightness Sect. Nominal (mm²)
30	∓0.75	30	∓0,50	0÷200	0÷50	<1000-0,004xL.
35	∓0.75	35	∓0,50	0÷200	0÷50
40	∓0.75	40	∓0,50	0÷200	0÷50
45	∓1.00	45	∓0,50	0÷200	0÷50
50	∓1.00	50	∓0,50	0÷200	0÷50
55	∓1.00	55	∓0,50	0÷200	0÷50
60	∓1.00	60	∓0,50	0÷200	0÷50
65	∓1.00	65	∓0,50	0÷200	0÷50
70	∓1.00	70	∓0,50	0÷200	0÷50	<1000-0,0025xL.
75	∓1.00	75	∓0,50	0÷200	0÷50
80	∓1.00	80	∓0,50	0÷200	0÷50
85	∓1.50	85	∓0,50	0÷200	0÷50
90	∓1.50	90	∓0,50	0÷200	0÷50
95	∓1.50	95	∓0,50	0÷200	0÷50
100	∓1.50	100	∓0,50	0÷200	0÷50
110	∓2.00	110	∓0,50	0÷200	0÷50
120	∓2.00	120	∓0,50	0÷200	0÷50

* WIDTH ∓0,50 ON DEMAND
**THICKNESS ∓0,15 ON DEMAND

Our offering also includes premium CORTEN steel.

This special type of steel provides corrosion resistance up to eight times greater than that of traditional carbon steels. It is designed to develop a protective oxide patina that prevents progressive corrosion. This unique property makes it ideal for urban furniture and outdoor applications in fields such as architecture, art, and design—where aesthetics and functionality must coexist harmoniously.

Furthermore, CORTEN is valued for its sustainability, as it requires no chemical treatments for protection and maintains itself over time thanks to its natural patina, which ensures long-lasting durability and weather resistance.

PRODUCTS: Hot Rolled Flat Bars – Hot Rolled Steel Bars – Hot Rolled Steel Bars – Flats Bars – Mechant Bars – Corten – Corten Steel – Boron Steel – Hot Rolling – Hot Rolled Bars

Hot-Rolled Flat Bars

PRODUCTS: Hot Rolled Flat Bars – Hot Rolled Steel Bars – Hot Rolled Steel Bars – Flats Bars – Mechant Bars – Corten – Corten Steel – Boron Steel – Hot Rolling – Hot Rolled Bars

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