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Product Description

The Differences Between B500A, B500B, and B500C

The differences between the A, B and C designations are complex and relate to structural tolerances. For reinforcement mesh products, grade B500A steel is typically used, and for rebar, B500B is used. B500C steel is seldom requested and it would always be worth checking with a structural engineer whether grade B500B could be used instead of B500C, since B500C typically has a significant cost overhead.


Welded   steel typeB500AB500BB500C
Areasmooth, dented, ribbeddented, ribbedribbed
Delivery   formcoils, bars,   spot-welded reinforcement mesh, lattice girderscoils, bars, spot-welded   reinforcement mesh
Nominal   centerline [mm]4 – 166 – 506 – 50
Min.   flow / yield limit Re [Mpa]500500500 
Re, act /   Re, nom <1.25
Min. Rm /   Re ratio1.05a1.051.15c; <1.35
Min.   elongation at max load Agt [%]3.0a, b5.0b7.5b, c
Min.   fatigue strength 2σad [MPa]100d ≤ 28 mm: 175 d ≤ 28 mm: 175 
d> 28   mm: 145d> 28 mm: 145
Min. shear force




0.25 x An x Renvt 
0.25 x An   x Re 0.25 x A 0 / b x Re 10 / b 0.25 x An x Re 0.25 x A 0 / b x Re   10 / b 
or 0.6 x   Ad x Re, dor 0.6 x Ad x Re, d
Tolerance   nominal centerline [%]+/- 4.5+/- 4.5+/- 4.5
Chem.   composition [mass%]C <0.22, etc C <0.22, etc C <0.22, etc 
Ceq   <0.50Ceq <0.50Ceq <0.50
Min. relative opp. cross rib (dent), fr / pfd = 4.0 – 6.0: 0.039 d   = 9.0 – 10.5: 0.052 
d   = 6.5 – 8.5: 0.045 d = 11.0 – 50: 0.056


Product nameDeformed Steel Rebars,Rebar
MaterialQ195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc.
Size6mm,8mm,10mm, 12mm, 14mm, 16mm, 20mm, 22mm, 25mm, 30mm, 32mm, 40mm,50mm
Length5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques
StandardBS4449-2005,GB1449.2-2007,JIS G3112-2004, ASTM A615-A615M-04a
GradeGrade A, Grade B, Grade C
Section ShapeSpiral Shap,Herringbone Shap,Crescent Shap
TechniqueSteel Rebar Iron Rod
PackingBundle, or with all kinds of colors PVC or as your requirements
EndsPlain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.
Surface Treatment1. Galvanized  2. PVC,Black and color painting   3. Transparent oil,anti-rust oil   4. According to clients requirement
Delivery timeUsually within 15 days after receipt of advance payment


Size(mm)Base Diameter(mm)Transverse Rib Height(mm)Longitudinal Rib Height(mm)Transverse Rib Spacing(mm)Unit Weight(kg/m)
65.8±0.30.6±0.3≤0.84±0.50.222
87.7±0.40.8±0.3≤1.15.5±0.50.395
109.6±0.41±0.4≤1.37±0.50.617
1211.5±0.41.2±0.4≤1.68±0.50.888
1413.4±0.41.4±0.4≤1.89±0.51.21
1615.4±0.41.5±0.5≤1.910±0.51.58
1817.3±0.41.6±0.5≤210±0.52.00
2019.3±0.51.7±0.5≤2.110±0.82.47
2221.3±0.51.9±0.6≤2.410.5±0.82.98
2524.2±0.52.1±0.6≤2.612.5±0.83.85
2827.2±0.62.2±0.6≤2.712.5±1.04.83
3231±0.62.4±0.7≤314±1.06.31
3635±0.62.6±0.8≤3.215±1.07.99

Rebar is the common name for hot rolled ribbed steel bars. The grade of ordinary hot-rolled steel bar is composed of HRB and the minimum yield point of the grade. H, R, and B are the first letters of the three words Hotrolled, Ribbed, and Bars respectively.  Hot-rolled ribbed steel bars are divided into three grades: Grade II HRB335 (the old grade is 20MnSi), Grade III HRB400 (the old grades are 20MnSiV, 20MnSiNb, 20Mnti), and Grade IV HRB500.


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FAQ   

Q: Why choose us?                    

A: Our company have been in steel business for more than ten years, we are internationally experienced,professional, and we can provide variety of steel products with high quality to our clients.                    

Q: How is your Payment Term?                        

A:One is 30% deposit by TT before production and 70% balance against copy of B/L;            

                       

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A:Warmly welcome. Once we have your schedule, we will arrange the professional sales team to accompany your visit.    

                       

Q: Can you provide sample?                        

A: Yes, We can provide the samll samples in stock, but the sample will be charged, and  the charge will be refunded if you place an order.

                       

Q: How about your price?                        

A: Our prices are very favorable and competitive.Customer from all over the world to purchase our products.

                       

Q: How long is your delivery time?                            

A: Generally it is 15-30 work days if the goods are not in stock, it is according to quantity.

                           

Q:Could you special design and produce for us?
A: Sure, we have all kinds of professional engineers,Could design and produce special product according to customer requested.Such as: special Size, special control, or OEM, etc.
   


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