Spezilla Tube Co., Ltd. (Shanghai)

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Durable Automotive Stainless Steel Tubing ASME SA268 Polished Stainless Steel Tubing

Very competitive price and the tubes are well polished, we are very satisfied with Spezilla from our cooperation since year 2010.

—— Nathalie Gulli - Mexico

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Good quality, fast delivery, Spezilla has been supplying heat exchanger tubes for our projects since 2008, we really appreciate your support!

—— Massimiliano Rossi - Italy

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Durable Automotive Stainless Steel Tubing ASME SA268 Polished Stainless Steel Tubing

China Durable Automotive Stainless Steel Tubing ASME SA268 Polished Stainless Steel Tubing supplier
Durable Automotive Stainless Steel Tubing ASME SA268 Polished Stainless Steel Tubing supplier Durable Automotive Stainless Steel Tubing ASME SA268 Polished Stainless Steel Tubing supplier Durable Automotive Stainless Steel Tubing ASME SA268 Polished Stainless Steel Tubing supplier

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Product Details:

Place of Origin: CHINA
Brand Name: SPEZILLA
Certification: ISO9001, TS16949, PED, AD2000
Model Number: SMLS

Payment & Shipping Terms:

Minimum Order Quantity: 500KGS
Price: NEGOCIATION
Packaging Details: WOODEN BOXED
Delivery Time: Ex-Mill 15 - 30DAYS
Payment Terms: T/T, L/C
Supply Ability: 100TONS/MONTH
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Detailed Product Description
Product Name: Ferritic Stainless Steel Automotive Tube Specification: ASTM A268
Material Grade: TP409/409L Size Range: 5/8"-2"
WT: BWG18-BWG12 Length: 6096mm
Finishing Options: Pickling, Polishing, Custom Cutting Test Certificate: EN10204 3.1
Packaging: Wooden Box, Bundled, Export Packaging Available Application: Boiler,Heat Exchanger
Shape: Round

Automotive Stainless Steel Tube ASME SA268 TP409/409L Ferrtic Stainless Steel Tubing

 

 

Typical Manufacturing Specifications:
 

ASTM A268

 

ASME SA268

 

TP409 is a typical martensitic chromium-alloy steel grade. It does not have the nickel content and owns the following characteristic:
 

- Harding by heat treatment
- High hardness with good ductility
- Good corrosion resistance capability
- Good wear corrosion resistance
- High cold-deformation property

 

 

Item Code: TP409
Tube OD.: 1/4'' - 2''
Wall: 0.028'' - 0.120''
Length: 20FT
Material: 405
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

 

 

Type 409 stainless steel has a unique chemical composition that includes:

  • C 10.5-11.75%
  • Fe 0.08%
  • Ni 0.5%
  • Mn 1%
  • Si 1%
  • P 0.045%
  • S 0.03%
  • Ti 0.75% max

 

TP409/409L have the lowest chromium content of all stainless steels and are ideal for slightly corrosive environments where localized rust is acceptable. The least expensive of all stainless steels, type 409 was initially created for automotive exhaust systems silencers, but can now be found in automotive exhaust tubing and catalytic converter casings. Type 410L is often used for containers, buses and LCD monitor frames.

 

Available Tube Product Forms:

Straight.


Coiled.

 

Typical Applications:

 

Used for parts requiring a combination of good strength and toughness, plus reasonable corrosion resistance. Typical applications are: Bolts, Bushings, Fasteners, Gas Turbine Parts, Mine Equipment, Pump Parts, Petrochemical Equipment, Steam Turbine Parts, Studs, Valve Parts etc.

Material magnetic in all conditions.

Applications

The typical applications of grade 409 stainless steels are listed below:

  • Automotive exhaust tubing
  • Catalytic converter systems
  • Mufflers

Heat Resistance

Grade 409 stainless steels offer scaling resistance at temperatures up to 675°C during continuous operation, and up to 815°C under intermittent conditions. These temperatures pertain to specific service environments.

Heat Treatment

Annealing of grade 409 steels is carried out at temperatures ranging from 790 to 900°C, followed by air-cooling. Thermal treatment does not harden grade 409 steels.

Welding

Grade 409 steels must be pre-heated to temperatures of 150 to 260°C before welding. Although grade 430 and 409 filler rods or electrodes can be used during welding of grade 409 steels, grade 309 electrodes or filler rods are strongly recommended by AS 1554.6. Care should be taken to weld grade 409 steels with minimum heat, in order to mitigate grain growth.

Ductility of the welded products can be improved by annealing post-welding at temperatures of 760 to 815°C. However, this is not required for thin welded products. Welding of exhaust tubing of automobiles is carried out without filler rods.

 

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

 

 

 

 

5% Test
Solution at 120°F
(49°C)
Corrosion Rate in Mils per Year and Millimeters per Year (mm/a)
Alloy 409 Alloy 410S Alloy 420 Alloy 425 Mod Alloy 440A Alloy 430
Acetic Acid 0.88
(0.022)
0.079
(0.002)
1.11
(0.028)
4.79
(0.122)
2.31
(0.0586)
0.025
(0.0006)
Phosphoric Acid 0.59
(0.002)
0.062
(0.002)
0.068
(0.002)
0.593
(0.015)
0.350
(0.009)
0.029
(0.001)

 

 

 

ASTM A268 Tp410 tube composition:

 

Grade: TP405 TP410 TP249 TP430 TP443 TP446-1 TP446-2 TP409
UNS S40500 S41000 S42900 S43000 S44300 S44600 S44600 S40800 S40900
C, max 0.08 0.15 0.12 0.12 0.20 0.20 0.12 0.08 0.08
Mn,max 1.00 1.00 1.00 1.00 1.00 1.50 1.50 1.00 1.00
P, max 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.045 0.045
S, max 0.03 0.03 0.03 0.03 0.03 0.03 0.03 0.045 0.045
Si, max 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Ni 0.50max 0.75max 0.75max 0.50max 0.80max 0.50max
Cr 11.5-14.5 11.5-13.5 14.0-16.0 16.0-18.0 18.0-23.0 23.0-27.0 23.0-27.0 11.5-13.0 10.5-11.7
Mo
Al 0.10-0.30
Cu 0.90-1.25
N 0.25 0.25 12xCmin 6xCmin
Ti 1.10max 0.75max

 

 

 

Chemical Composition
  Min. % Max %
Carbon 0.09 0.15
Silicon 0 1.00
Manganese 0 1.00
*Nickel 0 1.00
Chromium 11.50 13.50
Phosphorous 0 0.04
Sulphur 0 0.03
*Nickel additional option

Durable Automotive Stainless Steel Tubing ASME SA268 Polished Stainless Steel Tubing

Contact Details
Spezilla Tube Co., Ltd. (Shanghai)

Contact Person: Will Ma

Tel: +86 13918539222

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