Cast iron with spheroidal graphite cast iron (according to GB1412-85) | ||||||
Iron species | Pig iron for ductile iron | |||||
Brand | Q10 | Q12 | Q16 | |||
　 | Si | ≤1.00 | >1.00~1.40 | >1.40~1.80 | ||
　 | Mn | A group | ≤0.20 | |||
Two groups | >0.20~0.50 | |||||
Three groups | >0.50~0.80 | |||||
P | Special grade | ≤0.05 | ||||
First level | >0.05~0.06 | |||||
Secondary | >0.06~0.08 | |||||
Third level | >0.08~0.10 | |||||
S | Special category | ≤0.02 | ||||
one type | >0.02~0.03 | |||||
Second class | >0.03~0.04 | |||||
Three types | ≤0.06 | ≤0.05 | ||||
Spheroidal graphite Iron Casting is a kind of cast iron, but low sulfur phosphorus. Low sulfur makes carbon fully graphitized in iron. Low phosphorus improves the mechanical properties of pig iron; it is mainly used for ductile iron castings with good production performance (mechanical properties). Ductile iron is by using silicon (Si) an amount of iron division number, by containing manganese (Mn), phosphorus (P), sulfur (S) packet, grade, class.
Flat head or umbrella head galvanized Roofing Nail
Galvanized Roofing Nails are common used in construction. They are less cost and good property. Hot dipped galvanized have longer life than the electric galvanized nails.
Feature
- Good quality and durable.
- Anti-corrosion.
- Anti-rust.
Application
Galvanized roofing nails are common used in the wood roof or other wood products, so it also called wood roof nails. Because galvanized have a zinc-coated surface, they have the better anticorrosion, they can be used in the tropical areas and coastal areas.
Specification
- Material: Carbon steel Q195, Q235.
- Finish: Electric galvanized or hot-dipped galvanized.
- Head: Flat head or umbrella head.
- Shank: Smooth shank or twisted shank.
- Point: Diamond point.
Roofing Nail
Roofing Nail,Iron Wire Nail,Roofing Coil Nails,Galvanized Roofing Nails
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