Marine boat Cross Bollard with base
Marine boat cross bollard is a fixed structure of marine equipment.It is used for fixing to the deck for fastening and operating cables. Marine bollards are designed and shaped by ship’s berthing capacity. Most Bollards are mainly made of casting steel.Our most popular Marine cross bollard is made of stainless steel 316.
Our Foundry also provides stainless steel casting and polishing service for marine cross bollards with a range of sizes to suit different mooring applications.Its common specifications range from 50KN to 2000KN. As per marine cross bollard shapes, it can be classified into single cross bollard and double cross bollard.
Types of bollards We supply
|JIS F 2001 Bollard||GB/T 554-96 bollard||GB/T 556-65 SH type||GB/T 10106-88 ships’ cross bitts||DIN 82607-1995 bollard|
|CVI-Bollards||single bitt bollard||double bitt bollard||Kidney type bollard||Staghorn type bollard|
|Tee head bollard||Type U.S.A bollard||Y type bollard||DH type welded inclined bollard|
Marine cross bollard Material: Marine Grade 316 Stainless Steel
316 stainless steel is an austenitic stainless steel. Due to the addition of Mo element, its corrosion resistance and high temperature strength are greatly improved. The high temperature resistance can reach 1200-1300 degrees. It can be used under harsh conditions.
316 Stainless Steel Performance
- )Corrosion resistance:Corrosion resistance is superior to 304 stainless steel. 316 stainless steel is also resistant to erosion by marine and aggressive industrial atmospheres.
2 ) Heat resistance:316 stainless steel (06Cr17Ni12Mo2) has good oxidation resistance.
3 )Welding:316 stainless steel has good welding properties. All standard welding methods can be used for welding.
Marine grade 316 stainless steel is the material we produce for Marine cross bollard
Marine grade 316 stainless steel is also durable, easy to fabricate, clean, weld and finish. It can provide greater protection from salt spray and brine than 304 stainless steel. Besides chromium and nickel, Marine grade 316 also contains 2% to 3% of molybdenum. The molybdenum is a hard, silver white metallic element. It is usually used to toughen steels and increase corrosion-resistance in nickel alloys. When It exposed to chemical corrosives such as seawater and brine solutions. The addition of this ingredient gives Marine grade 316 cross bollard superior corrosion resistance than other chromium-nickel steels.
Marine grade 316 is also much more resistant to solutions of sulfuric acid, chlorides, bromides, iodides, and fatty acids at high temperature. It is commonly used in industrial applications involving chemical processing. Due to its non-reactive qualities, it is also used in the manufacture of medical surgical instruments and pharmaceuticals
Our Stainless Steel Casting Method for marine cross bollards : Investment Casting
The casting method for 316 stainless steel marine cross bollards is investment casting. It is the most accurate casting method now days. It has been widely used to produce stainless steel components for marine applications. such as marine fittings, marine bollards. Marine cross bollard, as the popular part used in marine industry, is also designed and produced by investment casting.
The advantages of stainless steel investment casting for single or double marine cross bollards as below:
|All shapes of cross bollards are available by investment casting, which are difficult by forging method|
|Very close tolerances and excellent surface finish can be obtained|
|Ready for use with little or no machining required|
|No flash or parting lines|
|Suit for producing cast stainless steel cross bollards in both small and large volumes|
Surface Finish method: Mirror Polishing
Mirror polishing is a kind of mechanical polishing method. It can make the marine cross bollards surface smooth and shiny.This polishing type involves several polishing procedures. It is operated by manual hand. Compared with electropolished stainless steel castings, mirror polishing will cost more money and time. But the surface finish performance is the best. Our Foundry can supply both investment casting and mirror polishing services for customers. It will make marine cross bollards cost more competitive than other casting companies in China.
Looking for 316 stainless steel casting and mirror polishing of single or double marine cross bollards. You can contact directly.
Our company has been supplying marine bollards for many years. . Our aim is to provide the best quality products, reasonable price and excellent service for our customers. We can supply all types of bollards on market and we can also meet your special requirements about the bollards. We also provide 12 months quality warranty to make sure products work in good condition. If you are interested in our products, kindly contact us freely. We are glad to cooperate with you and welcome your trial order.