- sales@liampipes.us
- Houston , USA
Home > Stainless Steel > Stainless Steel 439 Tubing
Liam Pipes and Tubes stands out as a top-notch manufacturer and supplier of Stainless Steel 439 Tubing right in Houston, USA. We pride ourselves on providing durable and corrosion-resistant tubing solutions that are perfect for tough industrial applications. Stainless Steel 439 is a ferritic stainless steel that boasts impressive oxidation resistance and solid mechanical strength, even at high temperatures. At Liam Pipes and Tubes, we make it a priority to ensure our 439 tubing meets strict quality standards, guaranteeing reliable performance in automotive, industrial heating, and exhaust systems. Our tubing is a popular choice thanks to its cost-effectiveness, ease of welding, and resistance to scaling, making it a great fit for environments that face high temperatures and corrosive conditions.
When it comes to composition, Stainless Steel 439 Tubing is primarily made up of Chromium (17–19%), with a low Carbon content (≤0.03%), and includes small amounts of Titanium (at least five times the Carbon content) for stabilization, along with traces of Manganese, Silicon, and Iron. This ferritic alloy excels in resisting oxidation and corrosion, particularly in high-temperature environments. Its mechanical properties feature a tensile strength of around 450 MPa, yield strength close to 275 MPa, and an elongation of about 20%. The addition of titanium not only enhances resistance to sensitization but also improves weldability and durability during thermal cycling.
| GRADES | TP 439 Stainless Steel Tubes / UNS S43035 / DIN 1.4510 |
| SIZE | 1/2″ NB to 24″ NB |
| STANDARDS | ASTM A213, ASTM A249, ASTM A554, ASTM A269, ASTM A270, ASTM A790, ASTM A789 |
| TYPE | Seamless Tubes, Welded Tubes, EFW Tubes, ERW Tubes, Fabricated Tubes, Cold Drawn Welded Tubes (CDW Tubes) |
| FORM | Round Tubes, Square Tubes, Rectangular Tubes, Oval Tubes, Hydraulic Tube, etc. |
| END | Plain End, Treaded, Beveled End |
| TOLERANCE on Length | Commercial Length: 6000mm +/- 30mm Fix Length: from 1200 mm up to 12000mm with a tolerance up to -0/+ 5mm |
| FINISH | Seamless, Welded, Brushed, Pickled, Solution Annealed and Pickled up to O.D. 219.1mm, Polished Grit 120 – 600, Mirror Polished |
|
Grade |
WERKSTOFF NR. |
UNS |
|
SS 439 |
1.4510 |
S43035 |
|
Grade |
Fe |
Cr |
Si |
Ti |
Mn |
Ni |
Mo |
Nb/Cb |
P |
N |
C |
S |
|
SS 439 |
81.3535 |
17.35 |
0.35 |
0.335 |
0.25 |
0.200 |
0.1 |
0.02 |
0.02 |
0.0100 |
0.01 |
0.0015 |
Tensile strength (annealed) | 438 MPa | 63500 psi |
Yield strength (annealed/ @strain 0.200 %) | 263 MPa | 38100 psi |
Modulus of elasticity | GPa | ksi |
Poisson’s ratio | 0.270 – 0.290 | 0.270 – 0.290 |
Elongation at break (In 2″, 50% cold worked) | 2.80% | 2.80% |
Hardness, Rockwell B (annealed) | 72.9 | 72.9 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Stainless Steel 439 Tubing from Liam Pipes and Tubes ensures high quality materials that resist corrosion and heat. Their materials offer excellent weldability, low risk of intergranular damage, and durability in tough materials. Liam offers precision engineered tubing with strict quality control, ensuring reliability in the automotive, industrial and construction industries. Their customer service, competitive pricing and on-time delivery make them a trusted provider of stainless steel specialty solutions.
Liam Pipes and Tubes, one of the largest suppliers of Stainless Steel 439 Tubing in Houston , USA, offers a comprehensive range of high-quality pipes and tubes suitable for various industrial applications. Their extensive inventory and commitment to exceptional service make them a go-to choice for stainless steel products in the region.
| Wall | Sizes ( O.D.) |
|---|---|
| .010 | 1/16″ , 1/8″ , 3/16″ |
| .020 | 1/16″ , 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ |
| .012 | 1/8″ |
| .016 | 1/8″ , 3/16″ |
| .028 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 3/4″ , 1″ , 1 1/2″ , 2″ |
| .035 | 1/8″ , 3/16″ , 1/4″ , 5/16″ , 3/8″ , 7/16″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .049 | 3/16″ , 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/8″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 2″ , 2 1/4″ |
| .065 | 1/4″ , 5/16″ , 3/8″ , 1/2″ , 16″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 3/4″ , 2″ , 2 1/2″ , 3″ |
| .083 | 1/4″ , 3/8″ , 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 1 5/8″ , 1 7/8″ , 2″ , 2 1/2″ ,3″ |
| .095 | 1/2″ , 5/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .109 | 1/2″ , 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ |
| .120 | 1/2″ , 5/8″ , 3/4″ , 7/8″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 2 1/4″ , 2 1/2″ , 3″ |
| .125 | 3/4″ , 1″ , 1 1/4″ , 1 1/2″ , 2″ , 3″ , 3 1/4″ |
| .134 | 1″ |
| .250 | 3″ |
| .375 | 3 1/2″ |
| Density (lb./ in^2) @ RT | 0.278 | |
|---|---|---|
| Modulus of Elasticity in Tension (psi x 10^6) | 29.0 | |
| Specific Heat (BTU/o F/lb.) | 32 to 212 oF | 0.11 |
| Thermal Conductivity (BTU/hr/ft^2/ft) | 212oF | 168.0 |
| Mean Coefficient of Thermal Expansion (in. x 10^-6 per o F) | 32 to 212oF | 5.6 |
| 32 to 932oF | 6.4 | |
| 32 to 1,472oF | 6.9 | |
| Electrical Resistivity (micro ohms – cm) | at 70oF | 63 |
| Oxidation Resistance – Continuous Service(oF) | 1700 |
Stainless Steel 439 Tube OD | Stainless Steel 439 Tube Tolerance |
|---|---|
4mm to 35mm | +/- 0.08mm |
35mm to 38mm | +/- 0.15mm |
38mm to 60mm | +/- 0.20mm |
60mm and above | +/- 0.25mm |
Yes, we offer custom sizes for Stainless Steel 439 Tubing to meet your specific requirements. Our team at Liam Pipes and Tubes is committed to providing tailored solutions for all your Piping & tubing needs. For more details, contact us at sales@liampipes.us.
You’ll find Stainless Steel 439 Tubing commonly used in automotive exhaust systems, furnace components, and industrial heating equipment, all thanks to its high-temperature oxidation resistance. It’s also utilized in heat exchangers, mufflers, and catalytic converter substrates. The ferritic structure of this tubing provides good thermal conductivity and resistance to thermal fatigue, making it ideal for applications that involve repeated heating and cooling cycles. Plus, 439 tubing is a go-to choice in the power generation and chemical processing industries, where cost-effective, heat-resistant materials are essential for long-lasting performance and minimal maintenance.
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