| 409 Stainless Steel Seamless Pipes Standards |
ASTM A213, ASTM A249, ASTM A269, ASME SA213, ASME SA249, ASME SA269, EN 10216-5 TC1 / TC2, PED 97/23/EC, AD 2000, NACE MR0175/ISO 15156 |
| 409 Seamless Aerospace Tubing |
AMS 5564, AMS 5565, AMS 5567, AMS 5569, AMS 5695 (Canceled & non-current specs include AMS-T-6845, Mil-T-6845, AMS-T-8504, Mil-T-8504, AMS-T-8506, Mil-T-8506) |
| WELDED & DRAWN 409 Stainless Steel Aerospace Tubing |
AMS 5564, AMS 5565, AMS 5566, AMS 5567, AMS 5569 (Canceled & non-current specs include AMS-T-6845, Mil-T-6845, AMS-T-8504, Mil-T-8504, AMS-T-8506, Mil-T-8506) |
| ASTM A312 Stainless Steel Pipe Typical Manufacturing Specifications |
ASTM A213,ASTM A312,ASME B36.19,AMS 5647,AMS 5566,AMS 5569,AMS 6845,BS 10216 Pt 5,ASTM A269,BS 3605 Pt 1,ASTM A632,NFA 49-117,NFA 49-217,Mil-T 8504,Mil-T 8606,or as per customer specifications. |
| Austenitic Stainless Steel 409 Pipes Seamless Tube Size |
3.35 mm OD To 630 mm OD |
| 409 Stainless Steel Welded Tube Size |
6.35 mm OD To 1219 mm OD |
| ASTM A312 TP 409 Stainless Steel Seamless Pipes Swg & Bwg |
10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| SS 409 Pipe Schedule |
SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Stainless Steel 409 Seamless Pipes Wall thickness |
0.020″ -0.220″, (special wall thicknesses available) |
| SS 409 tube Length |
Single Random, Double Random, Standard & Cut length |
| Stainless Steel UNS S40900 ERW Pipes Finish |
Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Stainless Steel DIN 1.4301 Pipes Form |
Round Pipes/ Tubes, Square Pipes/ Tubes, Rectangular Pipe/ Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes, Straight or 'U' bent Tubes, Hollow, LSAW Tubes Etc. |
| 409 Stainless Steel Welded Pipe Type |
Seamless, ERW, EFW, Welded, Fabricated |
| Electropolished |
(EP) Electropolished for Ultra High Purity Systems |
| Non-Electropolished |
(BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity, (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems |
| I.D. Surface Finish Options |
5, 7 & 10 µin. Ra |
| 409 Stainless Steel Round Pipe JIS |
8A to 250A |
| 409 Stainless Steel Square Pipe Tolerances |
In accordance with: ASTM: A269 & A632, JIS: G 3459 |
| 409 stainless steel tubing End |
Plain End, Beveled End, Treaded, Ends are suitable for orbital welding |
| ASTM A312 TP 409 Stainless Steel Marking |
All 409 Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
| 409 stainless steel tubing Application |
Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger |
| Value Added Service |
Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Specialize in |
Stainless Steel 409 Capillary Tube & Other Odd Size |
| Stainless Steel 409 Heat Exchanger & Condenser Tubes |
| Stainless Steel 409 Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition |
| ASTM A312 TP409 tube with OD larger than 50.8 mm are supplied in the annealed and pickled condition, Or in polished condition |
| Marking & Traceability |
Each Stainless Steel 409 Tubing is traceable to its producing mill and heat by an identification number etched within 24″ (610mm) of one end. |
| Test Certificate |
Manufacturer Test Certificate according to EN 10204 3.1 B |
| Laboratory Test Certificate from Govt. Approved Lab. |
| Under Third Party Inspection |
| Testing & Inspection |
Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing |
Global Leader in 410 Stainless Steel Tube Fabrication Services
DaXun's 409 stainless steel tube stands out due to its impressive corrosion resistance, affordability, and high tensile strength. This variety of stainless steel is easily welded using arc welding, resistance spot welding, and seam welding, maintaining its resistance to corrosion even after welding. Its versatility makes it ideal for numerous applications, such as vehicle and truck exhaust systems, heat exchangers, agricultural spreaders, fuel filters, gas turbine exhaust mufflers, and other precise forming and tough weldability demands. A significant advantage of this grade is its excellent weldability.
Stainless Steel Welded Tubes
Our stainless steel tubular products are meticulously crafted from premium stainless steel strips and are expertly roll-formed and fusion-welded along the longitudinal seam. At Daxun, our unparalleled welding process employs no filler metal, ensuring top-notch integrity.
Stainless Steel 409 Applications
- Aerospace structures;
- Automobile exhaust pipes, engine parts;
- Medical devices;
- Knives and kitchen utensils;
- Petrochemical applications;
- Stainless steel cutlery, kitchen utensils;
- Manufacturing flat springs;
- Hand tools;
- Bolts, nuts, springs and fasteners;
Stainless Steel Seamless Tube
Our stainless steel seamless tubes are crafted from hollow sections produced through advanced piercing or hot extrusion processes. These tubes are perfect for large diameter-to-wall thickness ratios, providing superior dimensional tolerances.
Quality, Delivery, Inspection
- At Jiangsu Daxun Alloy Co., Ltd., we uphold excellence through rigorous quality assurance tests, including flattening, pitting and resistance tests, mechanical tests, hardness tests, material positive identification, and expansion tests. Each detailed test guarantees our materials meet your exacting needs.
- During production, we meticulously measure the diameter, thickness, and surface quality of our products. Standard delivery timelines are from 7 to 15 days, with special-sized products potentially extending to 20 days, ensuring every detail meets your specifications.
We strictly adhere to our contracted delivery timelines, offering punctual and reliable service.
- We welcome and support customer-authorized third-party inspection agencies at our factory, ensuring transparency.
- We offer free samples for rigorous testing, allowing you to experience our superior quality firsthand.
- We provide on-site or video factory inspection options, fostering transparency and trust in our manufacturing process.
Discover the unparalleled stainless steel pipe manufacturing expertise of Daxun.
Our forming capabilities are unrivaled, featuring cutting-edge extrusion and cold working assets for tube and pipe manufacturing. We boast one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
Unveiling Daxun's exceptional pipe processing capabilities.
As a vertically integrated manufacturer, Daxun offers a comprehensive one-stop-shop solution. Whether managing an entire project or handling specific machining tasks, our capabilities span straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
Daxun: Your destination for Bigger, Better Pipe Solutions.
With state-of-the-art vertical and horizontal presses boasting capacities from 12,000 to an astounding 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. stands unrivaled in the industry for its comprehensive pipe extrusion capabilities. This exceptional technology empowers us to produce the longest lengths and largest diameter pipes available on the market, ensuring unparalleled quality and reliability for your most demanding applications. Whether you require pipes for high-pressure environments or unique custom specifications, trust Jiangsu Daxun Alloy Co., Ltd. to deliver excellence and innovation.
Jiangsu Daxun Alloy Co., Ltd. is proud to be a trusted supplier to the power generation sector, delivering critical components including ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our meticulously engineered products are designed to meet the rigorous demands of nuclear, coal-fired, renewable energy, and combined cycle power plants, ensuring optimal performance and efficiency in every application. With a commitment to quality and precision, our products support the seamless operation of power plants, contributing to reliable and efficient energy production.
| Ferrite and Martensite Chemical Content and Mechanical Properties |
| Standard |
Steel Grade |
C (%) |
Mn (%) |
P (%) |
S (%) |
Si (%) |
Cr (%) |
Ni (%) |
Mo (%) |
N (%) |
Nb (%) |
Ti (%) |
Al (%) |
Cu (%) |
| A/SA268 |
TP405 |
≤ 0.08 |
≤ 1.00 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
11.50 ~ 14.50 |
≤ 0.50 |
- |
- |
- |
- |
0.1-0.3 |
- |
| A/SA268 |
TP410 |
≤ 0.15 |
≤ 1.00 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
11.50 ~ 13.50 |
- |
- |
- |
- |
- |
- |
- |
| A/SA268 |
TP410S |
≤ 0.08 |
≤ 1.00 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
11.50 ~ 13.50 |
- |
- |
- |
- |
- |
- |
- |
| A/SA268 |
TP430 |
≤ 0.12 |
≤ 1.00 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
16.00 ~ 18.00 |
- |
- |
- |
- |
- |
- |
- |
| A/SA268 |
TP430Ti |
≤ 0.15 |
≤ 1.00 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
16.00 ~ 19.50 |
- |
0.75 |
- |
- |
5C-0.75 |
- |
- |
| A/SA268 |
TP446-1 |
≤ 0.20 |
≤ 1.50 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
23.00 ~ 27.00 |
- |
≤ 0.75 |
- |
0.25 |
- |
- |
- |
| A/SA268 |
TP446-2 |
≤ 0.12 |
≤ 1.50 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
23.00 ~ 27.00 |
- |
≤ 0.50 |
- |
0.25 |
- |
- |
- |
| A/SA268 |
TP409 |
≤ 0.08 |
≤ 1.00 |
≤ 0.045 |
≤ 0.030 |
≤ 1.00 |
10.50 ~ 11.70 |
≤ 0.50 |
- |
- |
6C-0.75 |
- |
- |
- |
| A/SA268 |
TP439 |
≤ 0.07 |
≤ 1.00 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
17.00 ~ 19.00 |
≤ 0.50 |
- |
0.04 |
0.2+4(C+N)~1.1 |
- |
- |
|
| A/SA268 |
TP444 |
≤ 0.025 |
≤ 1.00 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
17.50 ~ 19.50 |
- |
1.75-2.5 |
0.035 |
(Ti+Cb): 0.2+4(C+N)~0.8 |
- |
- |
|
| A/SA756/268 |
440C |
0.95 ~ 1.10 |
≤ 1.00 |
≤ 0.040 |
≤ 0.025 |
≤ 1.00 |
16.00 ~ 18.00 |
- |
0.4-0.7 |
- |
- |
- |
- |
- |
| A/SA693 |
17-4PH |
≤ 0.07 |
≤ 1.00 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
15.50 ~ 17.50 |
3.00 ~ 5.00 |
- |
- |
0.15-0.45 |
- |
3.0-5.0 |
- |
| GOST9941-81 |
15Cr25Ti |
≤ 0.15 |
≤ 1.00 |
≤ 0.035 |
≤ 0.025 |
≤ 1.00 |
24.00 ~ 27.00 |
- |
- |
- |
5C-0.90 |
- |
- |
- |
| API 5CT |
L80/9Cr |
≤ 0.15 ~ 0.30 |
0.6 |
≤ 0.020 |
≤ 0.010 |
≤ 1.00 |
8.00 ~ 10.00 |
0.9-1.1 |
- |
- |
- |
- |
- |
- |
| API 5CT |
L80/13Cr |
0.15 ~ 0.22 |
0.25 ~ 1.00 |
≤ 0.020 |
≤ 0.010 |
≤ 1.00 |
12.00 ~ 14.00 |
- |
- |
- |
- |
- |
- |
- |
| EN10088-1 |
0Cr13SiAl |
≤ 0.12 |
≤ 1.00 |
≤ 0.040 |
≤ 0.015 |
0.70 ~ 1.40 |
12.00 ~ 14.00 |
- |
- |
- |
- |
- |
0.7-1.2 |
- |
| EN10088-1 |
0Cr18SiAl |
≤ 0.12 |
≤ 1.00 |
≤ 0.040 |
≤ 0.015 |
0.70 ~ 1.40 |
17.00 ~ 19.00 |
- |
- |
- |
- |
- |
0.7-1.2 |
- |
| EN10088-1 |
0Cr24SiAl |
≤ 0.12 |
≤ 1.00 |
≤ 0.040 |
≤ 0.015 |
0.70 ~ 1.40 |
23.00 ~ 26.00 |
- |
- |
- |
- |
- |
1.2-1.7 |
- |
| EN10088-1 |
1Cr25Ti |
≤ 0.12 |
≤ 1.50 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
23.00 ~ 27.00 |
- |
- |
- |
5C-0.90 |
- |
- |
0.25 |
| A/SA268 |
S44660 |
≤ 0.030 |
≤ 1.00 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
25.00 ~ 28.00 |
3.0-4.0 |
- |
0.04 |
(Ti+Cb): 0.2~1.0≥6(C+N)~0.8 |
- |
- |
- |
| A/SA268 |
S44735 |
≤ 0.030 |
≤ 1.00 |
≤ 0.040 |
≤ 0.030 |
≤ 1.00 |
28.00 ~ 30.00 |
3.6-4.2 |
- |
0.045 |
|
|
|
|
Grade 409 is a stabilized ferritic general-purpose stainless steel tube containing 11% chromium, meticulously crafted for applications necessitating oxidation or corrosion resistance that carbon steel and some coated steels fail to provide. This remarkable 409 tube boasts robust oxidation resistance and impressive formability, albeit with reduced corrosion resistance due to its lower chromium concentration. While 409 offers inferior corrosion resistance compared to grades 304, 430, or 439, it significantly outperforms mild steel. The tube is exceptionally versatile, accommodating roll forming, stretch bending, deep drawing, and press forming. Post-annealing, 409 does not harden under cold treatment, making it ideal for warm and roll forming processes, including press or stretch bending. Though it possesses fair weldability, it is unsuitable for shock-loaded structures due to grain growth in the heat-affected zone, which directly impacts mechanical quality. Frequently utilized for tubing and stampings in automotive exhaust systems, the 409 stainless steel tube's mechanical properties present significant advantages for both the automotive and agricultural sectors. It efficiently withstands corrosion from exhaust gases and high-temperature environments, although its mechanical properties are prioritized over aesthetic appeal, rendering it unsuitable for decorative purposes.
Chemical Composition of 409 Stainless Steel Pipe
| Element |
% Present (in product form) |
| Carbon (C) |
0.03 |
| Silicon (Si) |
1 |
| Manganese (Mn) |
1 |
| Phosphorous (P) |
0.04 |
| Sulfur (S) |
0.015 |
| Chromium (Cr) |
10.50 - 12.50 |
| Molybdenum (Mo) |
6 x (C+N) to 0.65 |
| Iron (Fe) |
Balance |
Mechanical Properties of 409 Stainless Steel Pipe
| Product Form |
|
|
|
| |
C |
H |
| Thickness (mm) Max |
8 |
13.5 |
| Yield Strength Rp0.2 N/mm2 |
Longitudinal |
210 |
| Transverse |
220 |
| Tensile Strength |
Rm N/mm2 |
380 - 560 |
| Elongation min. in % |
A80mm1) <3mm (longitudunal + transverse) |
25 |
| A2) ≥3mm (longitudinal + transverse) |
409 Stainless Steel Pipe: PHYSICAL PROPERTIES
| Density |
Thermal Conductivity |
Electrical |
Modulus of |
Coefficient of |
Specific Heat |
Melting |
| lbm/in^3 |
(BTU/h ft. °F) |
Resistivity |
Elasticity |
Thermal Expansion |
(BTU/lb/ |
Range |
| |
|
(in x 10^-6) |
(psi x 10^6) |
(in/in)/ |
°F) |
(°F) |
| |
|
|
|
°F x 10^-6 |
|
|
| |
12.4 at 932 °F |
39.4 at 752°F |
|
6.60 at 32 - 1000°F |
|
|
| |
|
49.6 at 1652 °F |
|
6.86 at 32 - 1500°F |
|
|
| at 68°F: 0.280 |
9.4 at 212°F |
28.3 at 68°F |
29 |
5.84 at 32 - 212°F |
0.114 at 68°F to 212°F |
2500 to 2590 |
Leading Stainless Steel Sheet Suppliers in China
GENERAL PROPERTIES:
- Alloy 409 is a high-performance ferritic stainless steel, prudently stabilized with chromium and titanium, crafted primarily for automotive exhaust systems. With a robust composition of 11% chromium, it establishes the essential passive surface layer ensuring remarkable corrosion resistance. Allied with excellent corrosion resistance at elevated temperatures, moderate strength, and commendable formability, Alloy 409 is an economical choice. It surpasses carbon steel in corrosion resistance and is favored in scenarios requiring superior resistance to corrosion and high-temperature oxidation, even when aesthetic appeal is not paramount.
APPLICATIONS:
- Originally engineered for automotive exhausts, Alloy 409 has diversified into various industrial uses. Some noteworthy applications of Alloy 409 include:
- Automotive exhaust systems
- Catalytic converters
- Mufflers
- Tailpipes
- Farm equipment
- Structural support and hangers
- Transformer cases
- Furnace components
- Heat exchanger tubing
STANDARDS:
- ASTM/ASME: UNS S40900
- EU standard: FeMi35Cr20Cu4Mo2
- DIN: 2.4660
CORROSION RESISTANCE:
- Exhibits robust resistance against atmospheric and exhaust gas corrosion.
- In most environments, a thin rust layer forms which halts further corrosion but may affect surface aesthetics.
HEAT RESISTANCE:
- Classified as resistant to scaling in intermittent service up to 1499oF (815oC ) and up to 1247oF (675oC) in continuous service.
WELDABILITY
- Easily weldable.
- Pre-heating to 302 to 500oF (150 to 260oC) is recommended.
- Post-weld annealing at 1400 to 1499oF enhances weld ductility.
- For thin sections, post-weld annealing is not mandatory.
- Automotive exhaust tubing is typically welded without filler metal.
Q1: What products can you offer?
A: We provide a comprehensive range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, and beyond. Additionally, we specialize in duplex stainless steels like 2205, 2304, 2101, 2507, 904L, and high-nickel alloys such as 800H and 600H.
Our extensive inventory features a diverse range of high-quality materials, including the 400 series and duplex stainless steels such as 2205, 2304, 2101, 2507, and 904L. Additionally, we offer high-nickel alloys like 800H and 600H, ensuring we meet a wide array of requirements.
Q2. Can you produce the products according to my own drawings?
Absolutely, we specialize in custom manufacturing based on your drawings, ensuring that each product meets your precise specifications with unparalleled accuracy.
Q3. How does your factory do regarding quality control?
Quality is our utmost priority. We are dedicated to maintaining exceptional quality standards throughout the entire production process, from inception to completion.
Q4. Can I request to change the form of packaging and transportation?
Yes, we are flexible and can adjust the packaging and transportation methods according to your specific requests.
However, please be aware that any additional costs incurred due to such changes will be your responsibility.
Q5. How does your factory do regarding quality control?
Quality is our utmost priority. We are dedicated to maintaining exceptional quality standards throughout the entire production process, from inception to completion.
Q6. How long is the delivery time?
A: Our standard delivery timeframe ranges from 7 to 20 working days post payment confirmation, ensuring timely fulfillment of your orders.
For urgent orders, we can expedite the production and delivery process to align with your critical deadlines.
Q7. What is your Payment?
A: For your convenience, we accept 100% T/T advance or Western Union for smaller orders.
B: We offer a 30% T/T upfront payment option, with the remaining 70% payable before shipment.
C: For large-scale orders, we accept 100% Irrevocable LC at sight, providing flexible and secure payment solutions.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Absolutely, we excel in delivering high-quality materials perfect for deep drawing applications. Whether it's for stainless steel pots, sinks, bowls, or other products, we can fine-tune the mechanical properties to meet your specific needs.
Q9: How to get a sample?
A: We are pleased to offer FREE samples for your evaluation and testing. For small sample requests, we may even cover the courier cost, depending on the situation.
Q10: Which countries have you exported to?
A: Our stainless steel materials have been proudly exported to a wide range of countries including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and many more.
Q11: How do I visit your company?
A: You can conveniently fly into Guangzhou Baiyun International Airport, where we will be delighted to pick you up and welcome you to our facility, ensuring a seamless visit.
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