VAS Ribbed Reinforcing Steel Bar

VAS ribbed reinforcing steel bar is a key construction material, manufactured to high-quality standards to meet the stringent technical requirements of the construction industry. The product comes in long, round bars with raised ribs on the surface, enhancing adhesion to concrete and ensuring strong, durable structural integrity over time.

VAS ribbed steel bars are widely used in both residential and industrial projects, including:

Residential buildings
High-rise buildings and apartments
Bridges, roads, and infrastructure projects
Factories and prefabricated steel buildings
National key construction projects

Key Advantages:

✅ High tensile strength
✅ Excellent adhesion to concrete
✅ Rust-resistant and durable in all weather conditions
✅ Manufactured on advanced production lines with strict quality control

Standards: TCVN 1651-1:2008

Nominal Diameter (mm)	Cross-sectional Area (mm²)	Unit Weight (kg/m)	Unit Weight Tolerance (%)
D10	78.5	0.617	±6
D12	113	0.888
D14	154	1.210	±5
D16	201	1.580
D18	254.5	2.000
D20	314	2.470
D22	380.1	2.980
D25	491	3.850	±4
D28	616	4.840
D32	804	6.310
D36	1017.9	7.99

Chemical Composition (%)

Standard	Steel Grade	Chemical Composition
TCVN 1651-2:2018 (Vietnam)	CB 300-V	_
	CB 400-V	C: 0.29 max, Si: 0.55 max, Mn: 1.8 max, P: 0.04 max, S: 0.04 max, Carbon Equivalent: 0.56 max
	CB 500-V	C: 0.32 max, Si: 0.55 max, Mn: 1.8 max, P: 0.04 max, S: 0.04 max, Carbon Equivalent: 0.61 max
JIS G 3112:2010 (Japan)	SD 295A	_
	SD 390	C: 0.29 max, Si: 0.55 max, Mn: 1.8 max, P: 0.04 max, S: 0.04 max, Carbon Equivalent: 0.55 max
ASTM A615/A615M-18e1 (USA)	Gr40 (300)	_
	Gr60 (420)	_
BS4449:1997 (UK)	Gr 250	C: 0.25 max, P: 0.06 max, S: 0.06 max
	Gr 460	C: 0.25 max, P: 0.05 max, S: 0.05 max

Mechanical Properties

Standard	Steel Grade	Mechanical Properties	Bending Capacity
		Yield Strength (N/mm²)	Tensile Strength (N/mm²)
TCVN 1651-2:2018 (Vietnam)	CB 300-V	300 min	450 min
	CB 400-V	400 min	570 min
	CB 500-V	500 min	650 min
JIS G 3112:2010 (Japan)	SD 295A	295 min	440 min
	SD 390	390-510 min	560 min
ASTM A615/A615M-18e1 (USA)	Gr40 (300)	280 min	420 min
	Gr60 (420)	420 min	620 min
BS4449:1997 (UK)	Gr 250	250 min	287 min
	Gr 460	460 min	483 min