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Home » Product List » Screw Barrel for Extruder » Single Screw/Twin Screw/Parallel Screw Barrel
Product Details
Single Screw/Twin Screw/Parallel Screw Barrel
| Packing: | Wooden Case |
|---|---|
| Standard: | International Standard |
| Productivity: | 30, 000sets/Year |
| Unit Price: | Negotiable |
| Shipment Terms: | container by sea |
| Payment Terms: | L/C,T/T,Western Union |
| Minimum Order: | 1 set |
| Price Valid Time: | From Nov 22,2011 To Nov 22,2012 |
| HS Code: | 84779000 |
| Trademark: | JH |
| Origin: | Zhejiang of China |
| Export Markets: | North America, South America, Africa, Mid East, Eastern Asia |
Product Description
Alloy-steel of high-quality
1. 38CrMoAlA(JIS SACM645)
2. 42CrMo(JIS SCM440)
3. SKD61
Heat Treatment:
Nitriding treatment
Electroplated hard-chrome layer
High-frequency quenching
Spray-coat anti-corrosion, antibrasion bimetallic layer
Vacuum quenching
| Technical Index | |
| Tempering hardness | 240~280HV |
| Nitride hardness | 900~1020HV |
| Nitride layer thickness | 0.5~0.6mm |
| Nitride brittleness | ≤ 2grade |
| Surface roughness | Ra0.4m |
| Screw straightness | 0.015mm |
