Best Quality 40CR Raw Material Supler Higher Tensile Strength Parallel Thread Rib Peeling and Thread Rolling Rebar Couplers

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Product Details

Product introduction

Super High Strength Rebar Couplers made by raw material 40Cr used for HRB500 or above rebars with Best quality for Rib peeling and thread rolling technology.

Product details

PARALLEL THREAD REBAR COUPLERS

Name:

Parallel   Thread Rebar Couplers Super higher Strength Type (CBT-CR)

Used for Rebar:

HRB500/Grade 75/Kuwait 550/500B and so on with rebar yield strength   higher than 500MPa.

Raw Material:

40CR-yield strength 750Mpa, Tensile strength: 860MPa

Size:

16mm/18mm/20mm/25mm/28mm/32mm/36mm/40mm

Packing:

By bags and pallets packing, or wooden case packing as required (25KG   smaller packing, 1700KG per pallet)

Sample:

Free existing samples for checking dimension and quality

Production time:

15-40 days based on different quantity after receive the prepayment

Shipping Port:

Xingang,Tianjin Port,  Shanghai   Port, China.

Payment Terms:

TT / LC

Certificate:

ISO/ CE


SIZE (mm)

Out Diameter (mm)

Length (mm)

Pitch (mm)

N.W    (KG)

PACKING IN ONE BAG  (NOS)

1 BAG WEIGHT (KG)

Approvals/ Certificate

16

24

42

2.5

0.092

250

23.00

CE / ISO

18

27

45

2.5

0.136

200

27.2

CE / ISO

20

30

50

2.5

0.159

132

20.98

CE / ISO

22

33

54

2.5

0.21

121

25.41

CE / ISO

25

38

62

3.0

0.34

80

27.20

CE / ISO

28

42

68

3.0

0.46

56

25.76

CE / ISO

32

48

76

3.0

0.633

42

26.58

CE / ISO

36

53

84

3.0

0.905

27

24.43

CE / ISO

40

59

95

3.0

1.16

25

29.00

CE / ISO


1.Introduction

Our Rolling technology is a parallel-thread mechanical splicing system designed for the connection of 16mm to 40mm reinforcing bars. This system is a patented rib peeling and Metric thread cold rolling process which can meet with China standard of JGJ107-2010, UK standard of BS8110, USA standard of ACI318, VN standard of TCVN8163 and other international standards. Our coupler is higher strength rebar couplers used for higher grade rebars such as HRB500 or 550MPa rebars, this kind of coupler can provide super higher tensile strength when doing the tensile strength test.

2.Features and advantages

a.Practical and economical alternative to laps and welded of rebar.

b.Higher strength than normal couplers

c.Easy installation

d.Single step process, only one machine, one operator.

e.Assemble by visual inspection

f.Standard ISO parallel Metric Thread designs.

g.Standard coupler can be used both for standard splice and position splice

3.Working Steps

a.Cutting the rebar end to make it flat

b.Peeling the rebar ribs

c.Making the parallel thread by cold Rolling

d.Connect the rebars and make sure the bar break

4.Application

a.Splicing method as below:


     

Standard Connection                                                         Position Splicing 1

     

                                                       

Position Splicing 2                                                         Transition Splicing

b.Typical applications

     

Column                                                                               Bored Piles

                                                               


Waiting Rebar                                                                       Wall, Shell

                                  

                                                           Beam


5.Technical Data

a.Applicable Standards: JGJ107-2010, UK standard of BS8110, USA standard of ACI318, VN standard of TCVN8163 and other international standards.

The couplers are strictly under production tested by the thread gauge and calipers.

b.Raw material

Couplers are produced by the raw material of 40Cr, correspond to international standards of JIS: SCr440, ASTM: 5140, ISO: 41Cr4.

Chemical composition: C:0.37~0.44    Si:0.17~0.37   Mn:0.50~0.80   Cr:0.80~1.10 Ni:≤0.30  P:≤0.035  S:≤0.035  Cu:≤0.30

Mechanical Properties: Yield strength≥ 785MPa, Tensile Strength: ≥860MPa.

c.Pictures

d.Coupler Tensile strength comparison with common Splicing standards for Main sizes of 16mm, 20mm, 25mm, 32mm, and 40mm with HRB400 rebar with raw material of C45.

Coupler Tensile strength comparison with common Splicing standards for Main sizes of 16mm, 20mm, 25mm, 32mm, and 40mm with HRB500 rebar with raw material of 40Cr.

Size

16

20

25

32

40

OD (mm)

24

30

38

48

59

Thread larger Dia (mm)

16.50

20.50

25.50

32.50

40.50

Coupler Cross section area (mm2)

238.66

376.94

623.64

980.35

1446.29

40Cr Min Tensile Strength    (N/mm2)

860

860

860

860

860

Coupler Load (KN)

205.25

324.17

536.33

843.10

1243.81

Rebar cross-section area (mm2)

201.1

314.2

490.9

804.2

1257

BS 8110  3.12.8.16.2 108% Fy,   with 500 rebar load(KN)

108.59

169.67

265.09

434.27

678.78

ACI318 12.14.3.4 125%Fy(Type 1) with 500 rebar load(KN)

125.69

196.38

306.81

502.63

785.63

ACI318 21.2.5&6 125%Fy,100% FU,(Type 2) with 500 rebar load(KN)

138.76

216.80

338.72

554.90

867.33

Coupler Load(KN) with BS 8110, ACI 318 requirement Remark

Above

above

above

above

above

Through over 10 years' development, BARTECH is now well-known as one of the leading manufacturers and suppliers of best quality 40cr raw material supler higher tensile strength parallel thread rib peeling and thread rolling rebar couplers in China. Our factory is specialized in offering higher strength, cost effective and easier fixing products made in China for customers. Please rest assured to buy or check the quotation.

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