Factory Price Marine Boiler Exhaust Gas Economizer Pin Tube DN168 Smoke Tube for Alboarg Marine Boiler

“Sincerity, Innovation, Rigorousness, and Efficiency” is definitely the persistent conception of our enterprise for the long-term to create together with buyers for mutual reciprocity and mutual advantage for Factory Price Marine Boiler Exhaust Gas Economizer Pin Tube DN168 Smoke Tube for Alboarg Marine Boiler, Warmly welcome to cooperate and develop with us! we will continue to provide product with high quality and competitive price.
“Sincerity, Innovation, Rigorousness, and Efficiency” is definitely the persistent conception of our enterprise for the long-term to create together with buyers for mutual reciprocity and mutual advantage for China Boiler Tube and Pin Tube, Our company will adhere to “Quality first, , perfection forever, people-oriented , technology innovation”business philosophy. Hard work to keep making progress, innovation in the industry, make every effort to first-class enterprise. We try our best to build the scientific management model, to learn abundant expert knowledge, to develop advanced production equipment and production process , to create the first-call quality goods, reasonable price , high quality of service , quick delivery , to offer you create new value .

Low and medium pressure boiler tubes are made of ingots or solid billets that are perforated to form a burr tube, and then hot rolled, cold rolled or cold dialed. Seamless steel pipe has an important position in China’s steel pipe industry. According to incomplete statistics, China’s existing seamless pipe production enterprises about 240 more than, seamless steel pipe unit about 250 sets, the annual production capacity of about more than 4.5 million tons. From the caliber point of view, <φ76, accounting for 35%, <φ159-650, accounting for 25%. In terms of varieties, 1.9 million tons of general-purpose tubes, accounting for 54%; 760,000 tons of petroleum tubes, accounting for 5.7%; 150,000 tons of hydraulic pillars, precision tubes, accounting for 4.3%; stainless tubes, bearing tubes, automotive tubes a total of 50,000 tons, accounting for 1.4%.

Low and medium pressure boiler tube mechanical properties: tensile strength σb (MPa): ≥ 410 (42) yield strength σs (MPa): ≥ 245 (25) elongation δ5 (%): ≥ 25 section shrinkage ψ (%): ≥ 5, hardness: not heat treatment, ≤ 156HB, sample size: sample size 25mm heat treatment specifications and metallographic organization: heat treatment specifications: normalized, 910 ℃, Air cooling. Metallographic organization: ferrite + pearlite.

Medium and low pressure boiler tube execution standard: GB3087-1999 seamless steel tube for low and medium pressure boiler.

Medium and low pressure boiler tubes are hot rolled and cold drawn (rolled) seamless tubes of high quality carbon structural steel used for making superheated steam tubes, rolled water tubes and superheated steam tubes for locomotive boilers, large smoke tubes, small smoke tubes and arch brick tubes for various structures of low and medium pressure boilers. Mainly used for industrial boilers and living boilers to transport low and medium pressure fluid pipes. The representative material is 10 and 20 gauge steel.

20g high pressure boiler tube specification table

1.Why you choose us ?

Our company has been in Alibaba.com for 12 years. We control the quality of the products very strictly, there are special people for the quality.

If you got lower price from other supplier ,we will pay back twice to customers about the higher price.

2.How long is your delivery time?

According to the quantity.Generally within 2-7 days if in stock.And 15-20 days if not in stock.

3.What is your payment terms?

 A: By T/T 30% in advance ,and 70% before delivery.

 B:100% L/C at sight.

 C:By T/T 30% in advance,and 70% L/C at sight.

4.Do you provide samples ? Is it free?

Yes, we offer the sample for free but do not pay for the cost of freight.

5.What if the customer is not satisfied?

If there is a problem with the product,we take full responsibility. 

If there is a problem in the transportation process,we will help you to solve it.

“Sincerity, Innovation, Rigorousness, and Efficiency” is definitely the persistent conception of our enterprise for the long-term to create together with buyers for mutual reciprocity and mutual advantage for Factory Price Marine Boiler Exhaust Gas Economizer Pin Tube DN168 Smoke Tube for Alboarg Marine Boiler, Warmly welcome to cooperate and develop with us! we will continue to provide product with high quality and competitive price.
Factory Price China Boiler Tube and Pin Tube, Our company will adhere to “Quality first, , perfection forever, people-oriented , technology innovation”business philosophy. Hard work to keep making progress, innovation in the industry, make every effort to first-class enterprise. We try our best to build the scientific management model, to learn abundant expert knowledge, to develop advanced production equipment and production process , to create the first-call quality goods, reasonable price , high quality of service , quick delivery , to offer you create new value .