SA335 P11 / P22 / P91 from BaoSteel , NPS 4''(114.3mm) studded pin heating tubes

ASTM A335/A335M: Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

Manufacturing process:

Studs are fully automatically welded onto the tube by resistance welding.

Acceptance criteria

Approved drawings and the delivery conditions (TDC) of clients.

Delivery condition

Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of extruded bimetallic fin tube.

Surface Protection:

Oil dip, black coating or varnish.

Type of Studs

Cylindrical or elliptical

Documentation

It shall include raw materials mill certificates, inspection and test samples results and warranty certificate of manufacturer.

Applications:

1. Furnace
2. Chemical
3. Petrochemical industry
4. Power station etc.

Specifications:

Dimensions Data Sheet We're Supplying.

Competitive Advantage:

1. We have more than 10,000 square meters workshop, including 3 finning machines, daily extrusion capacity up to 80,000 studs.
2. Shanghai Port is our nearest seaport and airport, less than 2 hours’ drive away from our workshop, convenient transportation.
3. Due to their high rigidity, studded tubes can be used even under extreme temperature and pressure conditions.

About Reliance

Jiangsu Reliance Thermal Equipment Co., Ltd is all about thermal transfer finned tubes products. We have a long-term fabrication and supply experience in the business of FINING MACHINES and FINNED TUBES used in air-cooled heat exchanger, economizers, boilers, gas turbines, refining and petrochemical industries ect.

Advantages

• One-stop manufacturer shop from core tube supply to fin tube machines
• ISO 9001:2015 certified company
• Experienced and dedicated management and qualfied manpower
• Quickest response, competitive price, highese quality and shortest schedule
• Tube stock availability for general grades of carbon steel and stainless steel
• Technical support services for fin tube machines and replacement accessories

FINNED TUBES PRODUCTS & SERVICE AVAILABLE

Fabrication Capacities

(1)  Fourteen extrusion fining lines, daily capacity around 15,000 meters

(2)  Five type L/LL/KL fining lines, daily capacity around 5000 meters

(3)  Seven G- base fining lines, daily capacity around 7000 meters

(4)  Two ERW studding lines, daily capacity around 80000 studs

(5)  Four ERW High Frequency Spiral fining lines, daily capacity around 30 tons

(6)  Three bending machines, maximum capacity 76X4

(7)  Five DC ERW H/HH fining lines, daily capacity around 20 tons

(8)  One PLC high speed punch presser 

Reliance have become a qualified manufacturer and reliable supplier for high-quality thermal transfer finned tubes used in air-cooled heat exchanger,economizers,boilers,gas turbines,refining and petrochemical industries ect.

If you are interested in any of our products, please do not hestitate to contact us @reliancemfg@126.com