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Heat Exchanger Stainless Steel Welded Pipe , Stainless Round Tube TP409/409L

Spezilla Tube Co., Ltd.  (Shanghai)

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Heat Exchanger Stainless Steel Welded Pipe , Stainless Round Tube TP409/409L

Country/Region china
City & Province shanghai shanghai
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Product Details

Ferritic Stainless Steel TP409/409L Tube,Welded ferritic tube ASTM A268

 

 

409 / 409L Applications

 

Due to good resistance to high temperature corrosion and gas corrosion, good mechanical property and weldability, 409 / 409L is extensively used in automotive applications, truck exhaust systems, agricultural equipment, as well as heat and gas turbine exhaust silencers.

 

Grade 409 / 409L, Type 409 / 409L, Inox 409 / 409L, AISI 409 / 409L, SUH409 / 409L, 1.4512, UNS S40900, UNS S40903, Acero 409 / 409L.

 
Common Trade Names
 
409 Stainless, 409 Stainless Steel
Features
Although susceptible to rust formation, making this grade of stainless steel somewhat undesirable for decorative purposes, 409 is extremely resistant to various forms of gas corrosion.

 
Magnetic Properties: 409 flat rolled stainless steel is magnetic and cannot be hardened by heat treatment. It can, however, be somewhat hardened by cold-working. Type 409 has great ductility and is suitable for use in deep draw applications. It is also easily formable.

  • It is suggested prior to welding, the steel is pre-heated to 150-260C and also suggested post-weld annealing at 760-815C.

 

Item Code:TP409/409L
Tube OD.:1/4'' - 2''
Wall:0.028'' - 0.120''
Length:20FT
Material:409/409L
Standard:ASTM A268 ASME SA268
Finish:Annealed & Pickled.
Type:Seamless Cold Drawn
Certification:ISO9001:2015
Mill Test Certificate:EN10204 3.1
Packing:

Sleeved, Wooden Boxed

 

 
Typical Manufacturing Specifications:
 
ASTM A268
 
ASME SA268
 

Chemical Formula
Fe, <0.08% C, 10.5-11.75% Cr, <0.5% Ni, <1.0% Mn, <1.0% Si, <0.045% P, <0.03% S, 6x%C-0.75% Ti

Quality Assurance:
Spezilla's seamless bright annealed stainless steel tubes are produced acc. to the following process and inspection to assure our quality:
1. Chemical Composition Analysis Test With 100% PMI.
2. Solution Annealing / Bright Annealed.
3. 100% Hydrostatic Test and 100% Eddy Current Test
4. Mechanical Tests includes Tension Test, Flattening Test, Flaring Test, Hardness Test.
5. Impact Test subject to Standard request.
6. Grain Size Test and Intergranular Corrosion Test.
7. Visual Test and Endoscope Test for Surface Quality Test

 

 
Applications
 
409 is the perfect grade stainless steel to be used in automotive applications where visual appeal is not a top priority. For this reason and for its durability to gas corrosion, 409 is most commonly used in truck exhaust systems, agricultural equipment, and heat and gas turbine exhaust silencers.

 
 

 
 Chemical Composition of ASTM A268 409 S40900 Grade and EN 10088-2 1.4512 1.4516 Stainless Steel
 

GradeCMnSiPSCrNiTi
TP409min. max.- 0.08- 1.00- 1.00- 0.045- 0.03010.5 11.7- 0.506×C-0.75
TP409Lmin. max.- 0.035- 1.00- 1.00- 0.045- 0.03010.5 11.7- 0.506×C-0.75
1.4516min. max.- 0.08- 1.50- 0.70- 0.040- 0.01510.5 12.50.50-1.500.05-0.35
1.4512min. max.- 0.030- 1.00- 1.00- 0.040- 0.01510.5 12.5- 0.506×(C+N)-0.65
 

 
 

Grade:TP405TP410TP249TP430TP443TP446-1TP446-2TP409
UNSS40500S41000S42900S43000S44300S44600S44600S40800S40900
C, max0.080.150.120.120.200.200.120.080.08
Mn,max1.001.001.001.001.001.501.501.001.00
P, max0.040.040.040.040.040.040.040.0450.045
S, max0.030.030.030.030.030.030.030.0450.045
Si, max1.001.001.001.001.001.001.001.001.00
Ni0.50max0.75max0.75max0.50max0.80max0.50max
Cr11.5-14.511.5-13.514.0-16.016.0-18.018.0-23.023.0-27.023.0-27.011.5-13.010.5-11.7
Mo
Al0.10-0.30
Cu0.90-1.25
N0.250.2512xCmin6xCmin
Ti1.10max0.75max
 

 

 


 

































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