Gnee (Tianjin) Multinational Trade Co., Ltd.
Gnee (Tianjin) Multinational Trade Co., Ltd.
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We manufacture various rail shoulders pre-inserted in the concrete tie, including rail cast iron insert, cast-in shoulder, and weld-on shoulder.
We also offer customization according to requirements, adhering to international standards such as UIC, AREMA, BS, RDSO, DIN, JIS, ISCR, GB, VALEC, GOSTR-EASC, GB/T. For any inquiries, feel free to contact us.
Type: Rail Cast Iron Insert
Materials: QT400-15,QT450-10,QT500-7,QT600-3,QT700-2,ZG25,ZG35,ZG45
Model: Customized according to the drawing
Surface: Plain Oiled, Oxygen Black
Produce Type: Sand casting, Hot Forging
| Material | Tensile Strength(Mpa) | Yield Strength(Mpa) | Elongation(%) |
| QT400-15(GGG40) | 400 | 250 | 15 |
| QT450-10(GGG45) | 450 | 310 | 10 |
| QT500-7 (GGG50) | 500 | 320 | 7 |
Material Chemical Composition〔%〕
| Material | C | Si | Mn | P | S |
| QT400-15 | 3.6-.36 | 3.0-3.2 | 0.5 | 0.07 | 0.02 |
| Qt450-10 | 3.4-3.9 | 3.7-3.0 | 0.5 | 0.07 | 0.03 |
| QT500-7 | 3.4-3.8 | 2.5-2.9 | 0.6 | 0.08 | 0.025 |