The Grouth Steel Group supplies steel products for construction, mining and re-rollers throughout the Middle East and South East Asia.

Growth Steel Deformed Bars are all 'hot rolled' and produced using both direct rolling from the continuous casting line (for mild steel deformed bar) and by tempering and reheating to rolling temperatures (high tensile grades).

The Growth Steel Deformed Bars Production is on three dedicated rolling lines and are manufactured under strict quality controls to ensure consistancy and conformity to regional and international standards.

Growth Steel Deformed Bars are manufactured to, and conform to the major world standards for deformed bar.

The standards and grades of Growth Steel steel deformed bars available are:-

BS 4449: 2005, Grade B500B

  • Yield Point – 500 N/mm2
  • Tensile/Yield Str'th ratio – 1.08
  • Elongation – 5% at max. Agt
  • C: 0.24% max
  • S: 0.055% max
  • P: 0.055% max
  • Cu: 0.85% max
  • N: 0.014% max
  • CE: 0.52% max


BS 4449: 1997, Grade 250

  • Yield Point – 250 N/mm2
  • Tensile Str'th – Min. 15% > Yield Str'th
  • Elongation – Min. 22%
  • C: 0.24 – 0.28% max
  • S: 0.060 – 0.068% max
  • P: 0.060 – 0.068% max
  • C+Mn/6: 0.42 – 0.45% max


BS 4449: 1997, Grade 460

  • Yield Point – 460 N/mm2
  • Tensile Str'th – Min. 15% > Yield Str'th
  • Elongation – Min. 12%
  • C: 0.30 – 0.33% max
  • S: 0.050 – 0.05% max
  • P: 0.050 – 0.058% max
  • C+Mn/6: 0.51 – 0.54% max


JIS G3112: 2004, Grade SD390

  • Yield Point – 390 - 510 N/mm2
  • Tensile Str'th – 560 N/mm2 min.
  • Elongation – Min. 16 - 17%
  • C: 0.29% max
  • Si: 0.55% max
  • Mn: 1.80% max
  • S: 0.040% max
  • P: 0.040% max
  • C+Mn/6: 0.55% max


SNI 07-2052: 2002, Grade BjTS 40B

  • Yield Point – 390 N/mm2
  • Tensile Str'th – Min. 560 N/mm2
  • Elongation – Min. 16–18%
  • C: 0.29% max
  • Mn: 1.80 max
  • S: 0.050% max
  • P: 0.050% max
  • C+Mn/6: 0.55% max

Click here >> for dimension tables for all defomed bar.



Deformed Bar Dimensional Specifications :

Nominal diameters (d);

BS 4449
  • 10mm
  • 12mm
  • 16mm
  • 20mm
  • 25mm
  • 32mm
JIS G3112:
  • 10mm
  • 13mm
  • 16mm
  • 19mm
  • 22mm
  • 25mm
  • 29mm
  • 32mm
SNI 07-2052:
  • 10mm
  • 13mm
  • 16mm
  • 19mm
  • 22mm
  • 25mm
  • 29mm
  • 32mm





Deformed Bar Dimensional Specifications:

Nominal lengths (l), all grades:

  • 6m
  • 9m
  • 12m
  • Other lengths to order
  • Tolerance: +100/-0, or as agreed with buyer.






Deformed Bar Dimensional Specifications:

Rib Patterns, all grades:

  • Rib pattern: Type B
  • Rib height (h): 0.03d to 0.15d
  • Rib spacing (c): 0.4d to 1.2d
  • Rib inclination (β): 35° to 75°






Deformed bar rib geometry


© 2017 PT. Growth Sumatra Industry | Website D&M by Steve Flowerdew