high tensile strength DHG black oxide bolts and nuts with high grade 8.8
Specifications:
Standard:DIN, JIS, ISO, ANSI, ASME, BS, AS
Grade:4.8/ 5.8/8.8/ 10.9/ 12.9
Dimensions:According to customers' requirement .
Process: Hot forging .
| Brand | ZhongYue |
| Name | Railway bolt |
| Type | T-bolt ,Hex head bolt ,Squair head bolt and other kinds of bolts |
| Or the type by customers’ drawings |
| Grade | 4.8 | 5.8 | 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 |
| Standard refers | UIC864-2 |
Special Bolt
Special bolts
Nuts
Established in 2013, ZhongYue has become one of the largest manufacturer 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. They are inspected frequently by BV, SGS, and ABS. We have been granted ISO9001:2008 certificate and supply 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.
Sticking to our quality first policy, ZhongYue pays great attention to quality control management. We have been granted ISO9001-2008 certificates and have received the production license of China's Railway Ministry on railway products. We have a full set of inspection instruments to ensure all our railway bolt products are of high quality and up to customers' requirements.
Aplication
Railway, Mining, Bridge, Construction and so on
Inspection machine
- Brinell Hardness Tester
- Carbon and Sulfur Analyzer
- Rockwell Hardness Machine
- Automatic Impact Testing Machine
- Metallographic Microscope
- Automatic High-speed Analyzer
- Fatigue Testing Machine
- Metallographic Specimen Polishing Machine
- Metallographic Specimen Pointing Machine
Package
Product Tags:
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High Tensile Strength DHG Black Oxide Railway Bolt And Nuts Grade 8.8 Images
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