Suzhou Zhongyue Railway Material Co.,Ltd.
Suzhou Zhongyue Railway Material Co.,Ltd. Where there is a railway, there we are!
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Railway Stud Bolt
Other Name:
construction Bolt, Rail Bolt, Special Bolt, Stud Bolt, Track Bolt,sleeper bolt,clamp bolt,insert bolt, rail screw
Using Area:
Taiwan
Application:
Railway, Mining, Bridge, Boat, Construction and so on
Technique:
Hot Forged Bolt
Specifications:
Grade:4.8/ 8.8/ 10.9/ 12.9
Dimensions:M20, M22, M24 M25, M27, M28, M30, M32, M40, M50 and so on
| Brand | ZhongYue | |||
| Name | Railway bolt | |||
| Type | Stud Bolt | |||
| Or the type by customers’ drawings | ||||
| Grade | 4.6 | 5.6 | 8.8 | 10.9 |
| Material | Q235 | 35# | 45# | 40Cr |
| Mechanical properties | Tensile strength: ≥400Mpa | Tensile strength:≥500Mpa | Tensile strength:≥800Mpa | Tensile strength:≥1000Mpa |
| Yield strength:≥240Mpa | Yield strength:≥300Mpa | Yield strength:≥640Mpa | Yield strength:≥900Mpa | |
| Elongation:≥22% | Elongation:≥20% | Elongation:≥12% | Elongation:≥9% | |
| Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | Cold bending: 90 degree without crack | |
| Surface | plain (oiled), Oxide black, Zinc, HDG, wax, bitumen, Dacromet, Sherardizing | |||
Production Procedure
Raw material —— Wiredrawing —— Cutting the wire rod to length —— forming the head —— cutting Edge —— Heat Treatment —— Surface treatment —— Final inspection —— Packaging —— Shipment
Surface Treatment
1.plain (oiled)
2.color paint
3.oxide Black (most choice)
4.Zinc
5.HDG
6.bitumenizing
7.wax
8.phosphatiert
Inspection machine
1. Brinell Hardness Tester
2. Carbon and Sulfur Analyzer
3. Rockwell Hardness Machine
4. Automatic Impact Testing Machine
5. Metallographic Microscope
6. Automatic High-speed Analyzer
7. Fatigue Testing Machine
8. Metallographic Specimen Polishing Machine
9. Metallographic Specimen Pointing Machine
Our Company
Established in 2013, Suzhou Zhongyue Railway has been one of the largest manufacturers of Railway fasteners in China. Our products are manufactured according to international standards such as ASTM, DIN, BS, JIS, AS, NF, ISO,GOST and GB Standard. They are inspected frequently by BV, SGS, and ABS. We have been granted ISO9001:2008 certificate and provide products to famous companies such as VAE, Hilti,Vossloh etc. We are a qualified supplier of Canada railway, Kazakhstan railway, American railway, Zambia railway, Thailand railway, Indonesia railway, Malaysia railway, Sweden railway, New Zealand railway, South Africa railway etc.
According to our quality first Policy, Suzhou Zhongyue pays a lot attention to quality control process. We have been granted by ISO9001-2008 certificates and received the production license of China's Railway Ministry on railway products. We have a full set of inspection instruments to make sure all our railway bolt products are of high quality and up to customers' requirements.