Bunyan Solb
Bunyan Solb is one of the largest steel manufacturers in GCC.Located in Al Kharj, Riyadh, KSA, Bunya...
Welcome to Bunyan Solb's website and thank you for your interest.
Bunyan Solb is one of the largest steel manufacturers in GCC.Located in Al Kharj, Riyadh, KSA, Bunya...
BUNYAN SOLB- Produces high-tensile Steel Bars
Concrete reinforcing bars represent the majority of BUNYAN steel production. They are made according to Local and International standards.
When it comes to deformed rebars, there are some key points to consider:
Deformed rebars provide better adhesion and grip with concrete due to the surface deformations come in various sizes, grades, and lengths to suit different construction needs, which are usually made from carbon steel conforming to standards such as ASTM A615/ A615M.
Deformed rebars are manufactured in various grades, each grade designated with specific markings to indicate their properties and characteristics.
Grade 40, is a low-grade rebar with a minimum yield strength of 40,000 pounds per square inch(psi). Grade 40 rebars are suitable for lightly loaded structures or concrete projects where high strength is not required.
Grade 60 rebars have a minimum yield strength of 60,000 psi, making them suitable for most general construction applications. These rebars offer a balance of strength and ductility, making them versatile for a range of structural projects.
Deformed Reinforcement Bars According to SASO 2/1992, ASTM A615 Grade 60/75, BS4449 Grade B460 & B 500 B.
Diameter Range: 8,10, 12, 14, 16, 18, 20, 22, 25, 28, 32, 36 and 40 mm.
Bar length: 6 Meters and 12 Meters.
Bundles: Approximately 2.000kg.
Reinforcing Bars, Linear Mass, and Number of Bars in Bundles
| Diameter | Length | Weightper linear meter | ASTM A-615 | No of Bars per bundle |
|---|---|---|---|---|
8 | 6 | 0.395 | - 6% | 422 |
10 | 12 | 0.617 | - 6% | 270 |
12 | 12 | 0.888 | - 6% | 188 |
14 | 12 | 1.208 | - 6% | 138 |
16 | 12 | 1.578 | - 6% | 106 |
18 | 12 | 1.998 | - 6% | 84 |
20 | 12 | 2.466 | - 6% | 68 |
22 | 12 | 2.984 | - 6% | 56 |
25 | 12 | 3.853 | - 6% | 44 |
28 | 12 | 4.834 | - 6% | 34 |
32 | 12 | 6.313 | - 6% | 26 |
Deformed Bar Designation, Nominal Weight [Masses], Nominal Dimensions and Deformation Requirements
Bar Designation NumberA | Nominal Linear Mass | Nominal Dimensions | Deformations Requirements (mm) | ||||
Diameter (mm) | Cross Sectional Area | Perimeter | Maximum Average | Minimum Average | Maximum Gap | ||
8 | 0.395 | 8 | 50 | 25.1 | 5.6 | 0.32 | 3.0 |
10 | 0.617 | 10 | 79 | 31.4 | 7.0 | 0.40 | 3.8 |
12 | 0.888 | 12 | 113 | 37.7 | 8.4 | 0.48 | 4.6 |
14 | 1.208 | 14 | 154 | 44.0 | 9.8 | 0.56 | 5.3 |
16 | 1.578 | 16 | 201 | 50.3 | 11.2 | 0.72 | 6.1 |
18 | 1.998 | 18 | 255 | 56.6 | 12.6 | 0.81 | 6.9 |
20 | 2.466 | 20 | 314 | 62.9 | 14.0 | 1.00 | 7.7 |
22 | 2.984 | 22 | 380 | 69.1 | 15.4 | 1.10 | 8.4 |
25 | 3.853 | 25 | 491 | 78.6 | 17.5 | 1.25 | 9.5 |
28 | 4.834 | 28 | 616 | 88.0 | 19.6 | 1.40 | 10.7 |
32 | 6.313 | 32 | 805 | 100.6 | 22.4 | 1.60 | 12.2 |
36 | 7.990 | 36 | 1018 | 113.1 | 25.2 | 1.80 | 13.7 |
40 | 9.865 | 40 | 1257 | 125.7 | 28.0 | 2.00 | 15.2 |
50 | 15.410 | 50 | 1964 | 157.1 | 35.0 | 2.50 | 19.1 |
60 | 22.200 | 60 | 2829 | 188.6 | 42.0 | 2.70 | 22.9 |
The bar designations are based on the number of millimeters of the nominal diameter of the bar.
BThe assumed mass of a cubic meter of steel is 7850 kg/m3 following Specification A6/A6M.
CThe nominal dimensions of a deformed bar are equivalent to those of a plain round bar having the same weight per meter as the deformed bar。
Grade 280 [40]A | Grade 420 [60] | Grade 550 [80] | Grade 690 [100] | |
Tensile strength, min, MPa[psi] | 420 [60 000] | 550[80 000] | 690 [100 000] | 790 [115 000] |
Yield strength, min, MPa[psi] | 280 [40 000] | 420 [60 000] | 550 [80 000] | 690 [100 000] |
The ratio of actual tensile strength to actual yield strength, min | < 1.10 | < 1.10 | < 1.10 | < 1.10 |
Elongation in 200 mm, min, % | ||||
Bar Designation No. | ||||
8,10 | 11 | 9 | 7 | 7 |
12,14, 16 | 12 | 9 | 7 | 7 |
18,20 | 12 | 9 | 7 | 7 |
22,25 | . . . | 8 | 7 | 7 |
28, 32, 36 | . . . | 7 | 6 | 6 |
40, 50, 60 | . . . | 7 | 6 | 6 |
Bend Test Requirements
| Pin Diameter for Bend Tests A | ||||
Bar Designation No. | Grade 280 [40] | Grade 420 [60] | Grade 550 [80] | Grade 690 [100] |
8,10,12,14, 16 | 3½d B | 3½d | 5 d | 5 d |
18,20 | 5 d | 5 d | 5 d | 5 d |
22,25 | . . . | 5 d | 5 d | 5 d |
28, 32, 36 | . . . | 7 d | 7 d | 7 d |
40, 50, 60 (90°) | . . . | 9 d | 9 d | 9 d |
To be the fastest growing Steel Manufacturing Company within the Middle East and be the Market leader.
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