Why choose CDR
Linzhou Changda Railway Material Co., Ltd. (CDR)
One-stop rail joint bar manufacture service including the research, design, mould making and production of rail joint bars for 29 years since 1989.
Boasting the experience of the development of 16 China fishplates and 26 foreign ones
Our team consists of 123 workers and 22 technicians including our two senior engineers with more than 30 year's experience and unique insight of the development of rail joint bars
Wehave more professional arrangementsin the design of mould or die, the choice of raw material, Process layout and Quality control according to special requirements of all main standards including UIC, AREMA, BS, DIN, NF, AS, TB
We have two steel rolling lines including one Φ450 rolling line and one Φ300 rolling line, two automatically Computer-controlled natural gas furnaces and one 2000 tons of press machine which can guarantee implementation of production process and quality and production capacity.
We introduced ISO9001:2008 quality system and established laboratory equipped with a micro-computer control electro-hydraulic universal testing machine and a Brinell hardness tester, Low temperature impact testing machine, metallographic microscope and set up the professional quality inspection department to control the quality of the entire production process.
With the joint efforts of our whole team, Our rail joint bars keep a very good stable level, For instance:
The rail joint bars to AREMA 2016 for North American
The mechanical properties are stably 10-15% higher than the AREMA requirements as the third-party report shows below.
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AREMA standards |
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Tensile strength, minimum psi - Mpa |
Yield point, minimum psi - Mpa |
Elongation in 2”, minimum percent |
Reduction of area, minimum percent |
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100,000 Psi= 690Mpa |
70,000Psi = 480Mpa |
12 |
25 |
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Third-party report of our rail joint bars |
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Tensile strength, minimum psi - Mpa |
Yield point, minimum psi - Mpa |
Elongation in 2”, minimum percent |
Reduction of area, minimum percent |
|
967 Mpa |
681 Mpa |
19.5 |
52 |
|
877 Mpa |
631 Mpa |
14 |
45 |
|
876 Mpa |
595 Mpa |
14.5 |
46 |
|
129000 Psi |
83500 Psi |
17 |
47 |
The rail joint bar to TB/T2345-2008 for China
The mechanical properties are stably 10-15% higher than the TB/T2345-2008 requirements. Our rail joint bars are tested and recognized by China Railway Test & Certification Center(CRCC), as shown below
42 kinds of rail joint bars for different usages such as insulated joint bars, compromise fishplates, bulge joint bars / joggle fish plates are available for one stop integrated supply of almost all the standard rail joint bars in the world covering UIC, AREMA, BS, NF, DIN GB
We have developed some advanced rail joint bars including glued insulated fishplates for China high-speed railway, charpy test High strength bar used in North America and High and Cold Region under -40℃
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AREMA High strength |
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Tensile strength, minimum psi - Mpa |
Yield point, minimum psi - Mpa |
Elongation in 2”, minimum percent |
Reduction of area, minimum percent |
Charpy V-notch at -40℃, ft.lb. - J (Avg. value) |
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140,000 Psi= 966Mpa |
110,000Psi = 759Mpa |
12 |
25 |
15ft.lb. = 20.4 J |
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Test report of our rail joint bars |
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Tensile strength, minimum psi - Mpa |
Yield point, minimum psi - Mpa |
Elongation in 2”, minimum percent |
Reduction of area, minimum percent |
Charpy V-notch at -40℃, ft.lb. (Avg. value) |
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1060 Mpa |
930 Mpa |
18 |
52 |
(63+55.6+61.9)/3=60.2 |
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1130Mpa |
1020Mpa |
16 |
57 |
(40+30+40)/3=36.7 |
|
995 Mpa |
860 Mpa |
18 |
56 |
(94.5+55.5+62.5)/3=70.8 |
We are an original manufacturer assessed and verified by TÜV Rheinland.
We are supplying strategic projects for China and international Railways, such as Mombasa Nairobi Railway as a key project in Kenya of one belt one road initiative.
