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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Our Company


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Shandong Zuoze Special Steel Co.,Ltd was established in 2000, Located in Liaocheng city, Shandong Province, with more than 500 employees. In recent years, Zuoze Special Steel has been constantly optimizing the allocation of resources and transforming the growth mode, with its own 20,000 square meters plant. The main products are: metal materials, pipes, profiles, building materials, plates, stainless steel products, steel pipes, copper materials, bridge fence metal products. We focus on the steel production. We have set up two production center and have modern machining equipment such as cutting machine, bending machine, punching machine, water jet cutting machine, polishing machine, shearing machine, wire drawing machine.Our aim is to produce high quality stainless steel products : Stainless steel coil/roll, Plate/Sheet, Pipe/Tube, Strip, Angle, Channel, Round bar, Elbow, wires With 2B, BA, Hairline, Ti-Gold, Mirror,No.4,Rose- Gold mirror surface.

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FAQ


Q1. What are your company's main products ?

A1: Our main products are rebar, angle steel, channel steel, I-beam,H-beam,board piles, etc.


Q2. How do you control quality ?

A2: Mill certificates will be provided before delivery. Support third -party inspection. We also obtained ISO, SGS, Alibaba Verify..


Q3. What are the advantages of your company ?

A3: We have many professionals, technical personnel, more competitive prices and best after-dales service than other stainless steel companies.


Q4. How many countries you already exported ? 

A4: Exported to more than 50 countries mainly from America, Russia, UK, Kuwait, Egypt, Turkey, Jordan,India, etc.


Q5. Can you provide sample ?

A5: Yes, the sample is available.You are welcome to communicate the details of the sample customization with us at any time.


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