Chemical Composition, Tensile and Bend Requirement
i) Steel Bars for Concrete Reinforcement
Specification | MS 146:200 (Hot Rolled Steel Bars) (Ref: BS 4449:97) |
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Grade | Grade 250 (Mild Steel Bars) |
Grade 460 (High Yield Steel Bars) |
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Chemical Composition | C% Max | 0.25 | 0.25 |
S% Max | 0.06 | 0.05 | |
P% Max | 0.06 | 0.05 | |
CE% Max | 0.42 | 0.51 | |
Tensile And Bend Test Requirement | Yield Strength N/mm2 (min.) |
250 | 460 |
Tensile Strenth N/mm2 (min.) |
Actual Yield Stress x 1.05 | ||
Min. Elongation (Gauge Length L) |
22% | 12% | |
Bend Test | For all sizes 2d former |
Bend Angle (3d) = 180° Rebend (5d) = 1st bend 45° Rebend 23° |
ii) Cold Reduced Mild Steel Wire for Reinforcement of Concrete
Specification | MS 144 :87 (Ref: BS 4482:85) |
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---|---|---|
Chemical Composition | C.E.% Max | 0.42 |
C% Max | 0.25 | |
P% Max | 0.06 | |
S% Max | 0.06 | |
Tensile And Bend Test Requirement | Yield Strength N/mm2 (min.) |
485 |
Tensile Strength N/mm2 (min.) |
Actual Yield Stress x 1.05 | |
Alternatively Min. Elongation | 12% | |
Rebend Test | Bend Angle 45° 5d former. Rebend 23° |
Inquiry - Wire Mesh