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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.
The nominal diameter of the rebar is 8-50 mm, and the recommended diameters are 8, 12, 16, 20, 25, 32, and 40 mm. Steel grades: 20MnSi, 20MnV, 25MnSi, BS20MnSi. Reinforcing bars are mainly subjected to tensile stress in concrete. Due to the action of ribs, deformed steel bars have greater bonding ability with concrete, so they can better withstand the action of external forces. Steel bars are widely used in various building structures. Especially large, heavy, light thin-walled and high-rise building structures.
Product Name
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Reinforcement Steel Rebar Deformed Steel Bar
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Material
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HRB335, HRB400, HRB500, JISG3112-2004 SD390; BS4449-1997 Gr.460B; BS4449:2005 B500B/B500C | |||
Grade
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HRB400/HRB500/KSD3504 SD400/KSD3504 SD500/ASTM A615, GR40/ASTM GR60/BS4449 B500B/BS4449 B460 Etc. |
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Specifications
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Diameter(6-50mm) 6mm,8mm,10mm,12mm,16mm,20mm,22mm,25mm,28mm,32mm, 40mm,50mm Or OEM Length:6m-12m as your required |
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Surface Finished |
Screw-thread,Epoxy coating,Galvanized coating
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Production Process
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Rebar is a steel bar with ribbed surface, also known as ribbed reinforcement, usually with 2 longitudinal ribs and a transverse rib evenly distributed along the length direction. The shape of transverse rib is spiral shape, herringbone shape and crescent shape. In terms of millimeters of nominal diameter. The nominal diameter of ribbed reinforcement is equal to the nominal diameter of the light-round reinforcement with the same cross-section. The nominal diameter of the steel bar is 8-50 mm, and the recommended diameter is 8, 12, 16, 20, 25, 32 and 40 mm.Ribbed bars mainly bear tensile stress in concrete. The ribbed steel bar can bear the action of external force better because of the effect of ribbed and concrete. Ribbed bars are widely used in various building structures, especially large, heavy, light thin-walled and tall buildings. |
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Standard No.
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GB1499.1 ~ GB1499.3 (rebar for concrete); JIS G3112 -- 87 (98) (bar steel for reinforced concrete); JISG3191 -- 66 (94) (shape, size, weight and tolerance difference of hot-rolled bar and rolled bar steel); BS4449-97 (hot rolled steel bars for concrete structures). ASTM A615 GRADE 40,GRADE60,GRADE75; ASTM A706; DIN488-1 420S/500S, BST500S,NFA 35016 FE E 400, FE E 500 ,CA 50/60,GOST A3 R A500C |
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Standard
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GB:HRB400 HRB400E HRB500 USA:ASTM A615 GR40,GR60 UK: BS4449 GR460 |
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Inspection Methods |
Tensile testing (1) Tensile test method: GB/T228.1-2010, JISZ2201, JI SZ2241, ASTMA370, 1497, BS18, etc; (2) Bending test method: often use standard test methods have GB/T232-88, YB/T5126-2003, JISZ2248, ASTME290, ROCT14019, etc. |
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Application
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Rebar is widely used in building, bridge, road and other civil engineering construction. |
Diameter (mm)
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Weight (kg/m)
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12m Weight (kg/pc)
|
Quantity (pc/ton)
|
6
|
0.222
|
2.665
|
375
|
8
|
0.395
|
4.739
|
211
|
10
|
0.617
|
7.404
|
135
|
12
|
0.888
|
10.662
|
94
|
14
|
1.209
|
14.512
|
69
|
16
|
1.580
|
18.954
|
53
|
18
|
1.999
|
23.989
|
42
|
20
|
2.468
|
29.616
|
34
|
22
|
2.968
|
35.835
|
28
|
25
|
3.856
|
46.275
|
22
|
28
|
4.837
|
58.047
|
17
|
30
|
5.553
|
66.636
|
15
|
32
|
6.318
|
75.817
|
13
|
40
|
9.872
|
118.464
|
8
|
45
|
12.494
|
149.931
|
7
|
50
|
15.425
|
185.1
|
5
|
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