| 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 with its excellent corrosion resistance and affordability, being one of the most cost-effective grades of stainless steel available. With exceptional tensile strength, this tube is effortlessly welded using arc, resistance spot, and seam welding techniques, without compromising its corrosion resistance. Ideal for a wide array of applications, it shines in vehicle and truck exhaust systems, heat exchangers, agricultural spreaders, fuel filters, gas turbine exhaust mufflers, and any application demanding precise forming, toughness, and superior weldability. One of its standout features is its enhanced weldability, making it a preferred choice in various industrial sectors.
Stainless Steel Welded Tubes
Our stainless steel tubular products are meticulously crafted from premium stainless steel strips. These strips are expertly roll-formed and fusion-welded along the longitudinal seam without using filler metal, ensuring unmatched structural integrity and quality.
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 masterfully crafted from hollow sections produced through state-of-the-art piercing or hot extrusion processes. These tubes are perfectly suited for applications requiring large diameter-to-wall thickness ratios, boasting superior external dimensional tolerances and durability.
Quality, Delivery, Inspection
- At Jiangsu Daxun Alloy Co., Ltd., we ensure excellence through stringent quality assurance tests, including flattening, pitting and resistance tests, mechanical tests, hardness tests, material positive identification, and expansion tests. Each test is meticulously performed to guarantee our materials meet the highest standards for your demanding applications.
- Throughout production, we precisely measure the diameter, thickness, and surface quality of our products. Standard delivery timelines range from 7 to 15 days. For special-sized products, the timeline may extend up to 20 days, ensuring every detail meets your exact specifications.
We strictly adhere to the delivery timelines outlined in our contracts, ensuring punctual and reliable service.
- We welcome and support inspections by customer-authorized third-party agencies at our factory.
- We offer free samples for comprehensive testing, allowing you to experience our superior quality firsthand.
- We provide on-site or video factory inspection options, ensuring transparency and trust in our manufacturing process.
Discover the unparalleled stainless steel pipe manufacturing capabilities of Daxun.
Our forming capabilities are second to none, 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 jobs, our capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
Daxun: Your destination for Bigger, Better Pipe Solutions.
Equipped with cutting-edge vertical and horizontal presses ranging from 12,000 to an impressive 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. leads the industry in superior pipe extrusion capabilities. Our advanced technology allows us to manufacture pipes with the longest lengths and largest diameters available on the market. This ensures that you receive unmatched quality and reliability for even your most challenging applications.
Jiangsu Daxun Alloy Co., Ltd. takes immense pride in being a trusted supplier to the power generation sector. We deliver essential components such as ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our precision-engineered products are crafted to withstand the stringent demands of nuclear, coal-fired, renewable energy, and combined cycle power plants, guaranteeing optimal performance and efficiency in every application.
| 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 with 11% chromium content. This unique composition makes it ideal for applications that demand superior oxidation and corrosion resistance, outstripping the capabilities of carbon steel and certain coated steels. Although 409 boasts excellent oxidation resistance and formability, its lower chromium concentration affords it limited corrosion resistance compared to grades 304, 430, or 439. Nevertheless, it performs significantly better than mild steel. The versatility of 409 allows for diverse forming techniques such as roll forming, stretch bending, deep drawing, and press forming. Post-annealing ensures that 409 remains malleable, even under cold treatment via warm and roll forming methods including press or stretch bending. While its weldability is fair, caution is advised in shock-loaded structures due to grain growth in the heat-affected zone, impacting mechanical integrity. Predominantly, 409 finds its application in automotive exhaust system tubing and stampings. The mechanical properties of this stainless steel are highly advantageous in the automotive and agricultural sectors, offering robust resistance to exhaust gas corrosion and high-temperature conditions. Despite its mechanical prowess, the aesthetic appeal of 409 is secondary, and it is not recommended for decorative use.
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 |
Foremost Stainless Steel Sheet Suppliers in China
GENERAL PROPERTIES:
- Alloy 409 is a premium ferritic stainless steel stabilized with chromium and titanium, tailored primarily for automobile exhaust systems. Enriched with 11% chromium, it forms a passive surface coating that imparts exceptional corrosion resistance typical of stainless steels. This alloy exhibits robust corrosion resistance at elevated temperatures, moderate strength, commendable formability, and cost-effectiveness. Alloy 409 outperforms carbon steel in corrosion resistance, rendering it suitable for moderately demanding environments. It is favored in applications where mechanical properties and corrosion resistance outweigh aesthetic considerations.
APPLICATIONS:
- Originally designed for the automotive exhaust sector, Alloy 409 has proven its versatility across various industrial applications. Noteworthy examples 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:
- Excels in resisting atmospheric and exhaust gas corrosion
- In most conditions, a light surface rust forms, which hinders 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-heat between 302 to 500oF (150 to 260oC) is recommended
- Post-weld annealing between 1400 to 1499oF enhances weld ductility
- Post-weld annealing isn't necessary for welding thin sections
- Automotive exhaust tubing typically does not require filler metal when welded
Q1: What products can you offer?
A: We supply an extensive array of general steel types such as 310S, 316L, 304, 304L, 201, 904L, 316H, among others. We also offer duplex stainless steels like 2205, 2304, 2101, 2507, 904L, and high-nickel alloys including 800H and 600H.
Explore our extensive range of high-quality stainless steel alloys, including the robust 400 series and the versatile duplex stainless steel varieties such as 2205, 2304, 2101, 2507, and 904L. Additionally, we offer high-performance high-nickel alloys like 800H and 600H, ensuring you have the perfect material for your specialized needs.
Q2. Can you produce the products according to my own drawings?
Absolutely! We specialize in customizing products based on your detailed drawings to ensure they precisely meet your exact specifications and requirements.
Q3. How does your factory do regarding quality control?
At Jiangsu Daxun Alloy Co., Ltd., quality is our unwavering top priority. We meticulously maintain the highest quality standards throughout every stage of production, from initial planning to final delivery, ensuring excellence in every product we offer.
Q4. Can I request to change the form of packaging and transportation?
Of course, we are flexible in accommodating your preferences. We can modify the packaging and transportation methods according to your specific requirements to ensure your satisfaction.
Please be aware that any additional costs arising from these modifications will be your responsibility. We aim to provide a seamless experience while maintaining transparency regarding any extra fees.
Q5. How does your factory do regarding quality control?
Quality remains our foremost concern. We uphold stringent quality control measures from inception to completion, guaranteeing that every product meets our high standards.
Q6. How long is the delivery time?
A: Our standard delivery timeframe ranges from 7 to 20 working days post payment confirmation.
For urgent requirements, we offer expedited processing to align with your critical timelines, ensuring prompt delivery without compromising quality.
Q7. What is your Payment?
A: To facilitate smooth transactions, we accept 100% T/T advance or Western Union for smaller orders.
B: Alternatively, opt for a 30% T/T upfront payment, with the remaining 70% due before shipment.
C: For significant orders, we accommodate 100% Irrevocable LC at sight, providing financial security and flexibility.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Indeed, we can! Our premium material is ideally suited for producing stainless steel pots, sinks, bowls, and more. Share your specific application with us, and we will adjust the mechanical properties to perfectly meet your needs.
Q9: How to get a sample?
A: We are pleased to offer FREE samples for your evaluation and testing. Depending on the size of the sample, we might even cover the courier costs, making it easier for you to assess our high-quality materials.
Q10: Which countries have you exported to?
A: Our high-quality stainless steel materials have been exported to numerous countries, including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and many more, reflecting our global reach and trusted reputation.
Q11: How do I visit your company?
A: For your convenience, you can fly into Guangzhou Baiyun International Airport. We will be there to warmly welcome you and provide transport to our facility for an informative and pleasant visit.
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