ASTM A312 TP304/Tp316L/Tp321 Stainless Steel Seamless Coil Pipe/Tube Used for Heat Exchanger, Oil / Gas

• Type: Welded
• Technique: Cold Rolled
• Material: Stainless Steel
• Surface Treatment: Polished
• Usage: Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
• Section Shape: Round
• MOQ: 1 Ton
• Grade: 304 316
• Thickness: 0.2-40mm
• Length: Customized
• Transport Package: Standard Export Seaworthy Package
• Specification: OD 3.18-810mm
• Trademark: Mescosteel
• Origin: China
• HS Code: 7306400000
• Production Capacity: 3000 Tons/Month

Product Description

Main component composition

Stainless Steel Tube 304 316L 1.4301 Profiled Heat Exchanger Tubes for condenser / boiler/ Radiators
               Stainless Steel Spring Coil Tube               Stainless Steel Bamboo Joint Tube                                 Stainless Steel Bellows
   
                Stainless Steel U-Shape Tube                          Stainless Steel Threaded Tube                          Stainless Steel Corrugated Tube   

Product Specification

                                                                                        Stainless Steel Spring Coil Tube

                                                                                     

Grade: 304/304L 316/316L 321	Thickness: 0.6-2.0mm
OD: 8, 10, 12, 14, 16, 17, 19, 20, 22, 24, 25, 29, 31.8, 38mm	Length: Customized
Tolerence: OD ±0.1mm ;Thickness ± 10%; Length +5mm	Inspection: Underwater airtightness test, Online eddy current testing

                                                                                         
                                                                                          Stainless Steel Threaded Tube
                                                                                   

Grade: 304/304L 316/316L 321	Thickness: 0.6-2.0mm
OD:10, 12, 14, 16, 17, 19, 20, 22, 24, 25, 29, 32, 35, 38, 40, 42,50mm	Length: Customized,18m max
Tolerence: OD ±0.1mm ;Thickness ± 10%; Length +5mm	Inspection: Underwater airtightness test, Online eddy current testing
Technical Requirements:  Thread depth, thread spacing, and end straight pipe length can be adjusted according to customer requirements	Production Process: Online Bright Solid Solution Annealing Treatment, Online Eddy Current Testing, Underwater Airtightness Test for Each Tube

                                                                                Stainless Twisted Steel Tube 

ASTM A554 Material Grades: 201/ 202 / 304 /304L / 316 / 316L / 409L / 430 / 439 Surface Finish: Pickled, Polish Advantages: The unique structure of twisted tube can form Swirl flow in tube side and shell side at the same time thus enhancing turbulent intensity. The heat transfer coefficient for the Twisted Tube Exchanger is 40% higher for the same pressure drop as compared to conventional heat exchanger.

                                                                                           Stainless Steel Corrugated Tube 
                                                       

Grade: 304/304L 316/316L 321	Thickness: 0.6-2.0mm
OD: 14, 16, 17, 19, 20, 22, 24, 25, 29, 32, 35, 38mm	Length: Customized,18m max
Tolerence: OD ±0.1mm ;Thickness ± 10%; Length +5mm	Inspection: Underwater airtightness test, Online eddy current testing
Processing shapes: U-shaped, serpentine, jacket, welding head and other corrugated tubes can be processed according to customer drawings	Production Process: Online Bright Solid Solution Annealing Treatment, Online Eddy Current Testing, Underwater Airtightness Test for Each Tube

                                                                                         Stainless Steel Tubes with Perforation
                                                                                   

Stainless steel hole pipes can be processed into various types according to the drawing requirements, with a minimum hole spacing of 3.0mm and
a minimum hole diameter of 3.0mm

 

Grade: 409/409L, 436/436L, 421, 441, etc	Thickness: 0.6-2.0mm
OD: 19-133mm	Length: Customized,18m max
Tolerence: OD ±0.1mm ;Thickness ± 10%; Length +5mm	Inspection: Underwater airtightness test, Online eddy current testing
Processing:  Various hole tubes can be processed according to customer drawing requirements	Production Process: can be customized according to customer requirements, including shrinking and expanding processing

Our Advantages

1)Manufacturing Facility

Our company is equipped with a number of automatic ring welding machine, semi-automatic wave expansion machine,
bending machine,flaring machine, straightening machine Straightening machine, flat head machine, coil air pressure
machine and other equipment.Ensure customer custom size accurate, docking Neat, 100% pressure test 8kg 15s,
to ensure that customers use pipe without leakage, no porosity.

2)Main Process Requirements

Our 2B raw materials are mainly from POSCO, TiSCO, Baoxin and other famous suppliers. The base materials and
weld seam of the pipe undergo the solid solution treatment integrally. The outer diameter tolerance and inner weld
residual height are strictly controlled to ensure no internal weld traps exist. Each piece is subjected to a 100%
one-by-one pressure detection at 15 kg pressure for 15 seconds.The entire length of the pipe measures 12 meters
with throw light on both inside and outside surfaces, followed by an 18-meter tube pressure test
                                 internal welding seam                                                                        after 30% flaring

3)Argon arc Welding & Plasma Welding


4)Stainless Steel Pipes Online Annealing


Advantages:

1. to reduce the hardness and Improve the Elongation of the Pipe
2. to prevent deformation and weld seam cracking when bending
3. to improve the properties of steel to prepare for later heat treatment

 

Material Test Certificate

Stainless Steel Tube Packages

We help our customers to Insert the small tube into the large tube, by this way can load as
much as possible pipes into container to save the space and save freight.

 

Application Areas

                   Heat Exchanger Tubings                                    Roller Drum Pipes                                  Condenser Tubings

 
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