Hot-Rolled Squares Bars

Dojran Steel produces square bars at a length of 6 meters and with a side length ranging from 9mm to 40mm. Squares are intended mostly for traditional railing makers and merchants, as well as for metal structures.

Chemical composition and mechanical characteristics
Steel Grade	Chemical composition			Mechanical composition
Steel Grade	C (%) max	P (%) max	S (%) max	Yield strength (N/mm²) min	Tensile strength (N/mm²)	Elongation 5d₀, (%) min
S235JR (St 37-2)	0.170	0.040	0.040	235	360-510	26
S275JR (St 44-2)	0.210	0.040	0.040	275	410-560	23

Dimensions, weight and tolerances
Side length (mm)	Permissible deviation (mm)	Nominal cross-section (cm2)	Nominal weight (kg/m)	Nominal surface area (cm2/m)	Permissible diagonal difference (%)
9	± 0.4	0.81	0.63	360	4.00
10	± 0.4	1.00	0.79	400	4.00
12	± 0.4	1.44	1.13	480	4.00
14	± 0.4	1.96	1.54	560	4.00
16	± 0.4	2.56	2.01	640	4.00
18	± 0.4	3.24	2.54	720	4.00
20	± 0.4	4.00	3.14	800	4.00
22	± 0.4	4.84	3.80	880	4.00
25	± 0.4	6.25	4.91	1,000	4.00
30	± 0.4	9.00	7.07	1,200	4.00
35	± 0.4	12.25	9.62	1,400	4.00
40	± 0.4	16.00	12.56	1,600	4.00

Squares-Hot-rolled-bars-of-square-cross-section

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