| 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: A Cost-Effective, High-Performance Solution. Our 409 stainless steel tube offers excellent corrosion resistance and is among the most affordable stainless steel options. Boasting high tensile strength and ease of welding-whether arc, resistance spot, or seam welding-this tube retains its corrosion resistance post-welding. Applications are vast, ranging from vehicle and truck exhaust systems, heat exchangers, agricultural spreaders, fuel filters, gas turbine exhaust mufflers, to situations that demand precise forming, toughness, and enhanced weldability. The standout feature of this grade is its superior weldability, making it a versatile and reliable choice for various industries.
Stainless Steel Welded Tubes
Our Stainless Steel Tubular Products: Crafted with precision, our stainless steel tubes are formed from top-quality stainless steel strips. The tubes are roll-formed and expertly fusion-welded along the longitudinal seam, ensuring unmatched integrity without the use of filler metal. At Daxun, our welding process stands unparalleled in ensuring superior product quality and durability.
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: Precisely engineered from hollow sections using advanced piercing or hot extrusion methods, these tubes excel in applications requiring large diameter-to-wall thickness ratios. They are renowned for their superior external dimensional tolerances, making them ideal for demanding industrial applications.
Quality, Delivery, Inspection
- Commitment to Excellence at Jiangsu Daxun Alloy Co., Ltd.: We ensure top-notch quality through stringent tests-flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. Each phase is meticulously executed to guarantee that our materials fulfill your most demanding requirements.
- Precision in Production and Delivery: We continuously measure diameter, thickness, and surface quality throughout production. Standard delivery timelines range from 7 to 15 days, with special-sized products extending up to 20 days, ensuring precision meets your specifications every time.
Reliability in Delivery: We adhere strictly to contractually agreed timelines, guaranteeing punctual and dependable service.
- Customer-Authorized Inspections: We welcome third-party inspections authorized by customers, ensuring transparency and quality assurance on-site at our factory.
- Complimentary Samples for Testing: Experience our superior quality firsthand with our free samples, rigorously tested to meet your standards.
- Inspection Options: We offer both on-site and video inspection options of our factory, fostering transparency and trust in our manufacturing process.
Discover Daxun's Unparalleled Stainless Steel Pipe Manufacturing Capabilities
Expert Forming Capabilities: Our advanced extrusion and cold working assets lead the industry in tube and pipe manufacturing. We pride ourselves on operating one of the world's largest pilger mills, complemented by our unique hydroforming process for precision fittings.
Unveiling Daxun's Exceptional Pipe Processing Capabilities
Comprehensive Manufacturing Solutions at Daxun: As a vertically integrated manufacturer, Daxun offers a complete one-stop-shop solution, whether managing entire projects or handling specific machining tasks. 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.
With cutting-edge vertical and horizontal presses featuring capacities ranging from a robust 12,000 to an astonishing 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. leads the industry in unparalleled pipe extrusion capabilities. This remarkable technology allows us to manufacture the longest lengths and largest diameter pipes available, guaranteeing exceptional quality and reliability for your most demanding applications. Our advanced production capabilities ensure that our stainless steel tubes not only meet but exceed industry standards, providing unmatched performance and durability.
Jiangsu Daxun Alloy Co., Ltd. proudly stands as a reliable supplier to the power generation industry, delivering essential components such as ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our expertly crafted products are engineered to withstand the stringent requirements of nuclear, coal-fired, renewable energy, and combined cycle power plants. By ensuring optimal performance and efficiency in every application, we help power your operations with superior reliability and excellence, reinforcing our commitment to advancing energy solutions.
| 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, tailored for applications demanding superior oxidation or corrosion resistance where carbon steel and some coated steels fall short. With its robust oxidation resistance and impressive formability, Grade 409 outshines mild steel, although it may lag behind grades like 304, 430, and 439 in corrosion resistance. Perfect for roll forming, stretch bending, deep drawing, and press forming, Grade 409 maintains its properties through annealing and does not harden under cold treatment, be it through warm or roll forming processes such as press or stretch bending. It offers adequate weldability but is not ideal for shock-loaded structures due to grain growth in the heat-affected zone, impacting mechanical quality. Widely utilized in automotive exhaust systems and stampings, 409 stainless steel tube's mechanical properties are crucial for automotive and agricultural applications, offering excellent resistance to corrosion from exhaust gases and high temperatures. Although its mechanical properties shine, it is not recommended for decorative use due to its less appealing appearance.
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 |
Premier Stainless Steel Sheet Suppliers in China
GENERAL PROPERTIES:
- Alloy 409 is a high-performance ferritic stainless steel stabilized with chromium and titanium, primarily used in automobile exhaust systems. It contains a minimum of 11% chromium, essential for forming the passive surface layer that grants stainless steels their corrosion resistance. This alloy boasts excellent corrosion resistance at elevated temperatures, moderate strength, good formability, and an economical overall cost. Alloy 409 surpasses carbon steel in corrosion resistance, making it a preferred choice in moderately challenging conditions where superior resistance to corrosion and high-temperature oxidation is advantageous. It's often utilized in applications where mechanical properties and corrosion resistance take precedence over appearance.
APPLICATIONS:
- Initially designed for the automobile exhaust industry, Alloy 409 has proven its versatility in various industrial applications. Notable uses 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:
- Provides resistance to atmospheric and exhaust gas corrosion
- In most environments, a light surface rust forms which prevents further corrosion but may affect surface aesthetics
HEAT RESISTANCE:
- Generally classified as resistant to scaling in intermittent service up to 1499oF (815oC) and in continuous service up to 1247oF (675oC)
WELDABILITY
- Easily weldable
- Pre-heat of 302 to 500oF (150 to 260oC) is recommended for optimal results
- Post-weld annealing at 1400 to 1499oF improves weld ductility
- Post-weld annealing is unnecessary for thin sections
- Automotive exhaust tubing is typically welded without filler metal for efficiency
Q1: What products can you offer?
A: We offer an extensive range of general steel types such as 310S, 316L, 304, 304L, 201, 904L, 316H, and more. Additionally, we provide duplex stainless steels like 2205, 2304, 2101, 2507, 904L, and high-nickel alloys including 800H and 600H.
Our extensive inventory includes an impressive range of 400 series and duplex stainless steels such as 2205, 2304, 2101, 2507, and 904L. Additionally, we stock high-nickel alloys like 800H and 600H, ensuring we meet diverse industrial needs.
Q2. Can you produce the products according to my own drawings?
Absolutely! We specialize in manufacturing products based on your drawings, ensuring they align perfectly with your precise specifications.
Q3. How does your factory do regarding quality control?
Quality is our utmost priority. We are committed to maintaining stringent quality standards throughout our production process, from start to finish.
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 preferences.
Please note that any additional costs incurred from these changes will be your responsibility.
Q5. How does your factory do regarding quality control?
Quality is our top priority. We consistently focus on maintaining high-quality standards from start to finish.
Q6. How long is the delivery time?
A: Our standard delivery window is between 7 to 20 working days post payment confirmation.
For urgent orders, we offer expedited processing to meet your deadlines.
Q7. What is your Payment?
A: For convenience, we offer 100% T/T advance or Western Union for smaller orders.
B: Alternatively, you can opt for 30% T/T upfront with the remaining 70% due before shipment.
C: For larger orders, we accept 100% Irrevocable LC at sight.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Certainly, we can. Our superior quality material is ideal for manufacturing stainless steel pots, sinks, bowls, and more. Inform us of your specific application, and we'll adjust the mechanical properties to meet your exact requirements.
Q9: How to get a sample?
A: We offer FREE samples for your evaluation and testing. Depending on the situation, if it's just a small piece, we might even cover the courier cost.
Q10: Which countries have you exported to?
A: We have proudly exported our stainless steel materials to Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and many other countries.
Q11: How do I visit your company?
A: Simply fly into Guangzhou Baiyun International Airport, and we will arrange to pick you up and warmly welcome you to our facility.
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