Spezilla Tube Co., Ltd. (Shanghai)
Spezilla Tube Co., Ltd. Excellence in Stainless Steel Tubing
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Stainless Steel Alloy 430 ASME SA268 Ferritic Stainless Steel Tube for Automative
Type 430 Stainless Steel is perhaps the most popular non-hardenable ferritic stainless steel available. Type 430 is known for good corrosion, heat, oxidation resistance, and its decorative nature.
Ferritic stainless steel features high corrosion resistance and oxidation resistance due to its high chromium content, but its mechanical properties and machinability are poor. It is widely applied to acid-resistant structures with little stress and is used as anti-oxidation steel. This steel type can resist the corrosion of atmospheric, nitric acid and saline solution. It features high temperature oxidation resistance and small thermal expansion coefficient. It can be used in nitric acid and food factory equipment, and can also be used to produce parts working at high temperature, such as gas turbine parts.
Application:
Type 430 stainless steel has a unique chemical composition that includes:
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
| Item Code: | TP430 |
| Tube OD.: | 1/4'' - 2'' |
| Wall: | 0.028'' - 0.120'' |
| Length: | 20FT |
| Material: | 430 |
| 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
- Harding by heat treatment
- High hardness with good ductility
- Good corrosion resistance capability
- Good wear corrosion resistance
- High cold-deformation property
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.
| 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 | |||||||||||
