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Food AISI 304L welded steel tube EN 1.4307 For Heat Exchanger 25.4 X 1.2MM

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Food AISI 304L welded steel tube EN 1.4307 For Heat Exchanger 25.4 X 1.2MM

Country/Region china
City & Province shanghai shanghai

Product Details

Food AISI 304L welded steel tube EN 1.4307 For Heat Exchanger 25.4 X 1.2MM

 

Steel pipes and steel tubing are a favorite metal supply across industries, especially in applications where durability and longevity are a must. This is thanks to its resistance to both high temperatures as well as corrosion. Tampa Steel and Supply is your premium source for steel pipe and steel tubing.

 

Description:

 

Electric welded circular cross-section tubes EN10217-7.

 

Application: electric welded steel tubes to be used under pressure.

 

Stainless steel types1.4301 and 1.4307 are also known as grades 304 and 304L respectively. Type 304 is the most versatile and widely used stainless steel. It is still sometimes referred to by its old name 18/8 which is derived from the nominal composition of type 304 being 18% chromium and 8% nickel.


Type 304 stainless steel is an austenitic grade that can be severely deep drawn. This property has resulted in 304 being the dominant grade used in applications like sinks and saucepans.


Type 304L is the low carbon version of 304. It is used in heavy gauge components for improved weldability. Some products such as plate and pipe may be available as “dual certified” material that meets the criteria for both 304 and 304L.

 

Corrosion Resistance:

 

304 has excellent corrosion resistance in a wide variety of environments and when in contact with different corrosive media. Pitting and crevice corrosion can occur in environments containing chlorides. Stress corrosion cracking can occur at temperatures over 60°C.

 

Heat Resistance:

 

304 has good resistance to oxidation in intermittent service up to 870°C and in continuous service to 925°C. However, continuous use at 425-860°C is not recommended if corrosion resistance in water is required. In this instance 304L is recommended due to its resistance to carbide precipitation.

Where high strength is required at temperatures above 500°C and up to 800°C, grade 304H is recommended. This material will retain aqueous corrosion resistance.

 

Cold Working:

 

304 stainless steel readily work hardens. Fabrication methods involving cold working may require an intermediate annealing stage to alleviate work hardening and avoid tearing or cracking. At the completion of fabrication a full annealing operation should be employed to reduce internal stresses and optimise corrosion resistance.

 

Heat Treatment:

 

304 stainless steel cannot be hardened by heat treatment.

Solution treatment or annealing can be done by rapid cooling after heating to 1010-1120°C.

 

Specification:

 

EN10217-7 Welded Stainless Steel Tube Chemical Requirements (wt%)
Elements1.43011.43071.4404
C Max.0.070.0300.03
Mn Max.2.002.002.00
P Max.0.0450.0450.045
S Max.0.0150.0150.015
Si Max.1.001.001.00
Cr17.00-19.5017.00-19.5016.50-18.50
Ni8.00-10.508.00-10.0010.00-13.00
Mo- 2.00-2.50
N0.10 Max. 0.10 Max
Cu-  
Other   

 

Welded Stainless Steel Tube EN10217-7
Outside 
Diameter
(inch)
Outside
Diameter
(mm)
Brimingham Wire Gauge
1816141211
WALL THICKNESS (MM) / WEIGHT (KG/M)
1.241.652.112.773.05
5/815.880.4550.5880.728  
3/419.050.5530.7190.895  
125.400.7500.9812.2311.5701.707
11/431.750.9491.2461.5692.0142.196
11/238.11.1441.5061.9022.4512.677
13/444.451.3421.7682.2372.8913.162
250.801.5392.0312.5733.3313.647
21/263.501.8342.4233.0743.9904.371
376.202.3273.0803.9155.0935.587
31/288.90 3.6054.5855.9746.557
4101.60 4.1305.2566.8557.526
41/2114.30 4.6545.9277.7368.496


Applications:

 

Heat Exchanger / Food and Dairy Industry use etc.

 

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