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DELLOK ASTM SMLS Alloy Steel A335 Studs Stainless Steel Round Tube

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DELLOK ASTM SMLS Alloy Steel A335 Studs Stainless Steel Round Tube
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Features
Specifications
Fin Tube Type: Studded Tubes/Stud Welding Tube
Tube OD: 114.3mm
Tube Thickness: 4mm~15mm
Tube Length: 16 Meters Max.
Studs OD: OD6mm~OD16mm
Studs Height: 10mm Min.
Highlight:

Studs Stainless Steel Round Tube

,

A335 Stainless Steel Welded Tube

,

OD16mm Stainless Steel Welded Tube

Basic Infomation
Place of Origin: China
Brand Name: DELLOK
Certification: CE. ISO,EN10204. 3.1 Cert.
Model Number: Studs
Payment & Shipping Terms
Packaging Details: (1) Waterproof steel frame bundle with each end capped; (2) Steel frame case sealed by plywoods with each end capped.
Delivery Time: Ex-work within 5 weeks after order.
Payment Terms: L/C, T/T Contact us for details
Supply Ability: 60000 meters month
Product Description

ASTM SMLS Alloy Steel A335 Studs Stainless Steel Round Tube

 

ASTM A335 P5 / P9 SMLS alloy steel , NPS 4‘’ (114.3mm) welding studded tubes​

 

ASTM A335 / A335M :

Standard Specification for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

 

Studded tube(Pin tube)
Studded tube is also known as the head tube screw ribbed tube. Studded tube is more widely used in the petrochemical industry. Especially, in order to strengthen the heat transfer effect in the outside of the tube, Studded tube is also used in heat transfer components in a tube furnace convection chamber.
Studded tube can improve the heat transfer coefficient of flue gas side. The surface of studded tube is 2 ~ 3 times of the light pipe, so the application of studded tube can obtains the same intensity with heat radiation under the reasonable condition. The company nail head tube equipment adopts resistance welding welding method, welding process is controlled by PLC program, and dividing the feed motor servo motor, nail man-machine interface to set quotas, dividing parameters and compensation coefficient, according to the technological requirements set to ensure product quality and precision.

 

Advantages:

1)Satisfying connection surface, little heat loss .

2)Welding connection rate higher than 90 percent.

3)No need of welding power, hardly any welding tumor .

4)Narrow heated zone on the surface, no melted pool, without destroying the tissue of basic tube.

5) Welding parameters are strictly set to ensure the quality of bulk studded tube and avoid the instability of manual operation

 

 

 

Product Details

Material:

Carbon, stainless, and alloy steels.

Tube details:

Tube Thickness:4mm~15mm

Tube Length:16 meters max

Tube OD: 219 mm max

Studs Height:10mm Min.

Studs OD:OD6mm~OD16mm

Production Capacity:

Daily capacity up to 80,000 studs;

 

Material

C

Si

Mn

P

S

Mo

Cr

 

%

%

%

%

max

%

max

A 335 Grade P1

0,10 - 0,20

0,10 - 0,50

0,30 - 0,80

0,025

0,025

0,44-0,65

 

A 335 Grade P5

max. 0,15

max. 0,50

0,30 - 0,60

0,025

0,025

0,45-0,65

4,00-6,00

A 335 Grade P11

0,05 - 0,15

0,50 - 1,00

0,30 - 0,60

0,025

0,025

0,44-0,65

1,00-1,50

 

A 335 Grade P12

0,05 - 0,15

max. 0,50

0,30 - 0,61

0,025

0,025

0,44-0,65

0,80-1,25

A 335 Grade P22

0,05 - 0,15

max. 0,50

0,30 - 0,60

0,025

0,025

0,87-1,13

1,90-2,60

 

Specifications:

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

Studs

Material

Carbon Steel

Stainless Steel

1. Carbon Steel

2. Stainless Steel:

TP409/410,TP304/304L,TP316/TP316L, TP321/TP321L

 

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