ASTM A268 TP439 1.4510 Stainless Tube
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of astm a268 tp439 1.4510 stainless tube in China. If you're going to wholesale high quality astm a268 tp439 1.4510 stainless tube made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
AISI Type 439 ferritic stainless steel tubing is designed to resist corrosion in a variety of oxidizing environments from fresh water to boiling acids. Type 439 SS pipe is a titanium stabilized, 18 percent chromium alloy that may be used in many oxidizing environments where 304 Stainless pipe is considered adequate in terms of general corrosion resistance but is subject to chloride stress corrosion cracking. It is often used in place of Type 409 where higher thermal conductivity is required. Type 439 does not require annealing after welding to restore ductility or to provide intergranular corrosion resistance. Type 439 also has superior formability capabilities and is heavily used in the automotive industry; it can be work hardened slightly to increase tensile strength.
TP439 Stainless Steel Chemical Composition:
| Element | UNS 43940 | EN 1.4509 |
|---|---|---|
| Carbon | 0.030 max. | 0.030 max. |
| Manganese | 1.00 max. | 1.00 max. |
| Sulfur | 0.015 max. | 0.015 max. |
| Phosphorus | 0.040 max | 0.040 max. |
| Silicon | 1.00 max. | 1.00 max. |
| Chromium | 17.5 – 18.5 | 17.5 – 18.5 |
| Titanium | 0.10 – 0.60 | 0.10 – 0.60 |
| Nitrogen | - | 0.045 max. |
| Niobium | 0.30+(9xC) min. | 0.30+(9xC) min.– 1.00 max. |
| Grade | Tensile Strength, Min, Ksi [MPa] | Yield Strength, Min, Ksi [MPa] | ELONGATION. MIN, % |
|---|---|---|---|
| TP439 | 60 [415] | 30 [205] | 20 |
| ASTM A268 TP439, UNS S43035, EN 1.4510 Ferritic Stainless Steel Tube | |
| Outside Diameter | 6-203mm |
| Wall Thickness | 0.5-25mm |
| Length | Up to 25m |
| Standard | ASTM A268, ASME SA268 |
| Grade | TP410/TP405/TP420/TP430/TP430Ti/TP403/TP409/TP444/TP439/TP446,etc. |
| Delivery Condition | Pickled, Polished, Bright Annealed |
| Technique | Seamless/Welded |
| Application | Heat Exchanger, Heater, Condenser, Machining, Bearing Machining, API Service… |
| Marking | LOGO, Standard, Grade, Size, Heat Number. |
| Package | Woven bag, wooden case, or as per customer's requirement. |
| Quality Requirement | Mill Test Certificate (EN 10204/3.1); Third Part Inspection is acceptable. |
439 Stainless Steel Features:
Stainless steel grade 439 has good weldability, brightness, and pitting corrosion resistance. It polishes well, and is good for deep drawing.
- Excellent resistance to chloride stress corrosion cracking
- Good general corrosion resistance, especially in fresh waters and mildly oxidizing environments
- Weldability
- Long term cost advantages
- High thermal conductivity coefficient
- Low thermal expansion coefficient
- Good continuous and cyclic oxidation resistance.
- Typical applications in automotive exhaust system and heat exchanger system
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TP439 SS Pipe can be welded in all dimensions without becoming susceptible to intergranular corrosion. It is possible to use TP439 stainless steel at elevated temperatures,for instance the cold end of automotive exhaust systems.GNEE Steel is a professional expert in stainless steel. If you are in need, feel free to choose us.
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