SA335 P11 Studed Tubes,SA335 P9 Studed Tubes,SA335 P22 Studed Tubes


Home > Products > Special Steel Products > Fin Tube > SA335 P11 / P22 / P91 Studed Tubes For Chemical industry
Product Categories
Online Service

SA335 P11 / P22 / P91 Studed Tubes For Chemical industry

Basic Info

Model No.Fin Tube




ApplicationBoiler Pipe

Section ShapeRound

Surface TreatmentOiled

UsageThermal Equipment

Additional Info

PackagingIron-Plywood Case Packing


Place of OriginChina

CertificateABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

PortShanghai Sea Port,Ningbo Sea Port

Payment TypeL/C,T/T,Money Gram


Delivery Time15 Days

Product Description

Yuhong Group has an own workshop which can provide the most professional manufacturing process of studed tubes for clients' oil refinery projects.

ASME SA335 P11 / P22 / P91 NPS 4''(114.3mm) studded pin heating tubes.

All the raw materials will be from biggest steel factoires, such as: Baosteel, Hengyang Steel, TPCO etc..

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

General Studded Tubes production capacity

General specifications of Studded Tubes tubes

Production facility: 3 finning machines;

Daily capacity up to 80,000 studs;

Tube OD: 219 mm max.

Tube Thickness: 4mm~15mm

Tube Length: 16 meters max.

Studs OD: OD6mm~OD16mm

Studs Height: 10mm Min.

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


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


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


Items General Materials Popular ASTM /ASME Materials
Core Tube Material

Carbon Steel

Alloy Steel

Heat Resistant Steel,

Stainless Steel

1. Carbon Steel: A106 Gr. B

2. Stainless Steel: TP304/304L,TP316/TP316L, TP347

3. Alloy Steel: P5,T5,P9,T9,T11,T22



Carbon Steel

Stainless Steel

1. Carbon Steel

2. Stainless Steel:

TP409/410,TP304/304L,TP316/TP316L, TP321/TP310S

Dimensions Data Sheet We're Supplying.

General Descriptions of Studded tubes

Popular Specifications we make

Tube OD(mm)


Tube Wall Thickness(mm)


Tube Length(mm)

16,000mm Max.

Studs OD(mm)


Studs Height(mm)


Studs Type Circular, elliptical, waist drum type

Please email us for more information as your request.

Competitive Advantage:

  1. We have more than 12,000 square meters workshop, including 5 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.

Looking for ideal SA335 P11 Studed Tubes Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the SA335 P9 Studed Tubes are quality guaranteed. We are China Origin Factory of SA335 P22 Studed Tubes. If you have any question, please feel free to contact us.

Product Categories : Special Steel Products > Fin Tube

Product Images

  • SA335 P11 / P22 / P91 Studed Tubes For Chemical industry
  • SA335 P11 / P22 / P91 Studed Tubes For Chemical industry
  • SA335 P11 / P22 / P91 Studed Tubes For Chemical industry
  • SA335 P11 / P22 / P91 Studed Tubes For Chemical industry
  • SA335 P11 / P22 / P91 Studed Tubes For Chemical industry
Email to this supplier
  • *Subject:
  • *Messages:
    Your message must be between 20-8000 characters