Quality

Every bar has a file behind it.

Chemistry is read during the melt. Mechanical properties are read after rolling. Nothing reaches the market without both on record — and our own minimums sit above the standard we are measured against.

01Two laboratories

Chemical, then physical.

Spectrometer laboratory

During melting, a spectrometer analyses every chemical element in the iron. If an element is below the set limit, the required amount is added; if it is above, it is adjusted down through the technical process. A shortfall or an excess of any element changes the quality of the bar, the girder and everything else, so the melt is tested continuously rather than once.

Physical laboratory

After production, every product is tested on the universal testing machine. For rebar that means grade, tensile resistance, strength, bending, elongation and the other physical characteristics. Sections and other steel products are assessed on size, weight, strength and material quality. Our basic policy is simple: no product is offered to the market without laboratory approval — only material that has passed its tests is allowed to leave the factory.

02Chemical composition

Tighter than the designation requires.

Maximum limits, compared against ASTM A615 / A615M. Lower is better in every row.

Constituent	ASTM A615 / A615M	SMS product
C %	0.33 %	0.30 %
S %	0.053 %	0.050 %
P %	0.043 %	0.040 %
Si %	0.55 %	0.40 %
Mn %	1.56 %	1.20 %
CE %	0.55 %	0.52 %

03Mechanical properties

Above the minimum, by design.

Property	ASTM A615 / A615M	SMS product
Yield strength (MPa)	420 min.	450 min.
Tensile strength (MPa)	620 min.	640 min.
Elongation, 8–18 mm	9% min.	15% min.
Elongation, 20–25 mm	8% min.	15% min.
Elongation, 28–32 mm	7% min.	15% min.

04Bendability

Mandrel diameter for a 180° bend.

A smaller mandrel is a harder test. We pass a tighter one than the designation asks for.

Bar size	ASTM A615 / A615M	SMS product
8 – 16 mm	3.5 D	3 D
18 – 25 mm	5 D	4 D
25 – 32 mm	7 D	6 D

05Third-party results

Pulled by laboratories that are not ours.

Afghan Renewal Geotechnical Laboratory, Kabul — samples taken 11 July, tested 12 July 2026, to ASTM A615 / A615M-16 and AASHTO M31M.

Size	Weight (kg/m)	Effective dia (mm)	Area (mm²)	Yield (MPa)	Ultimate (MPa)	Elongation (%)	180° bend	Report ref.
10 mm	0.578	9.68	73.53	525.06	669.35	15.0	OK	ARGL-202607160
12 mm	0.836	11.64	106.36	484.68	690.97	12.5	OK	ARGL-202607161
14 mm	1.108	13.40	140.96	464.02	653.64	15.0	OK	ARGL-202607162
18 mm	1.957	17.81	248.99	456.37	676.78	15.5	OK	ARGL-202607163
20 mm	2.514	20.18	319.88	462.11	668.29	12.5	OK	ARGL-202607164