In the process of spot welding of galvanized steel, due to unreasonable welding specification, it will make some residual zinc and zinc-iron alloy in the joint during the crystallization of the molten nucleus, which may form small cracks or pores, and softening tissue will be formed when there is more residual zinc.
Galvanized Steel Pipe Description
| Outer Diameter | 15*15-150*150mm | ||||||
| Wall thickness | 0.5-6mm | ||||||
| Length | according to customers'requirements, | ||||||
| Standard | ASTM A500,GBT 6728,GB T 3094 | ||||||
| Zinc Coating | Pre-:60-150g/m2 Hot Dip Galvanzied:>200g/m2 | ||||||
| Certificate | ISO 9001-2000 | ||||||
FAQ
Q:Can I get samples before order?
A:Yes, of course. Usually our samples are free.
Q:what is your delivery time?
A:The time of delivery is usually around 15-20 days.
Q:What is your payment terms?
A:Our usual payment term is 30% deposit, and rest before delivery. L/C is also acceptable.
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