| 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 Pioneer in 410 Stainless Steel Tubing Solutions
DaXun's 409 stainless steel tube stands out for its remarkable corrosion resistance and affordability within the stainless steel spectrum. Boasting high tensile strength and excellent weldability via arc, resistance spot, and seam welding, this material remains resilient even after welding. Ideal for diverse applications such as automotive and truck exhaust systems, heat exchangers, agricultural spreaders, fuel filters, gas turbine exhaust mufflers, and more, this grade is perfect for situations demanding precise forming, toughness, and superior weldability.
Premium Stainless Steel Welded Tubes
Our stainless steel tubular products are crafted with the utmost precision, using high-grade stainless steel strips that are roll-formed and fusion-welded along the longitudinal seam. At Daxun, we pride ourselves on a filler metal-free welding process, ensuring exceptional product integrity.
Versatile Applications of Stainless Steel 409
- 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
Exquisite Stainless Steel Seamless Tube
Our seamless tubes are meticulously created from hollow sections via advanced piercing or hot extrusion techniques. These tubes excel in applications requiring large diameter-to-wall thickness ratios and offer superior external dimensional precision.
Commitment to Quality, Timely Delivery, and Thorough Inspection
- At Jiangsu Daxun Alloy Co., Ltd., we uphold excellence with rigorous quality assurance tests. These include flattening, pitting, resistance tests, mechanical assessments, hardness evaluations, material positive identification, and expansion tests, ensuring our materials meet your stringent demands.
- Throughout production, we meticulously measure the diameter, thickness, and surface quality of our products. Standard delivery times range from 7 to 15 days, with special-sized products taking up to 20 days, guaranteeing precise adherence to your specifications.
We strictly follow the delivery schedules stipulated in our contracts, providing punctual and reliable service.
- We welcome inspections by customer-authorized third-party agencies at our factory, supporting transparency and trust.
- Experience our superior quality firsthand with our free sample offerings for rigorous testing.
- We offer on-site or video factory inspection options, ensuring transparency and trust in our manufacturing process.
Explore the unrivaled stainless steel pipe manufacturing prowess of Daxun.
Our forming capabilities are unparalleled, leveraging state-of-the-art extrusion and cold-working assets for tube and pipe manufacturing. We feature one of the world's largest pilger mills and a unique hydroforming process for precise fittings.
Showcasing Daxun's Superior Pipe Processing Expertise
As a vertically integrated manufacturer, Daxun provides a full-spectrum one-stop-shop solution. Whether managing an entire project or specific machining tasks, our services encompass straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
Daxun: Your Hub for Superior Pipe Solutions.
With our state-of-the-art vertical and horizontal presses, ranging from 12,000 to a staggering 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. stands as an industry titan in comprehensive pipe extrusion. Our groundbreaking technology empowers the production of the longest lengths and largest diameter pipes available in the market, ensuring you receive unmatched quality and reliability for your most demanding applications.
Jiangsu Daxun Alloy Co., Ltd. proudly serves as a trusted supplier to the power generation sector, delivering critical components such as ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our meticulously engineered products are crafted to meet the rigorous demands of nuclear, coal-fired, renewable energy, and combined cycle power plants, ensuring 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 containing 11% chromium. It is particularly suitable for applications that require oxidation or corrosion resistance that carbon steel and some coated steels cannot provide. 409 tube has strong oxidation resistance and formability, but poor corrosion resistance due to the low chromium concentration. While it offers lower corrosion resistance compared to grades 304, 430, or 439, it outperforms mild steel in durability. This versatile tube can be shaped through roll forming, stretch bending, deep drawing, and press forming. After annealing, 409 does not harden when cold treated, making it ideal for warm and roll forming processes such as press or stretch bending. Its fair weldability supports a range of applications, though it should not be used in shock-loaded structures due to grain growth in the heat-affected zones, which affects mechanical quality. Commonly employed in automotive exhaust systems, the 409 tube's mechanical properties make it highly valuable in both the automotive and agricultural sectors, providing dependable resistance to exhaust gas corrosion and high-temperature environments. However, it is not recommended for decorative purposes where visual appeal is critical.
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, expertly stabilized with chromium and titanium. Primarily designed for vehicle exhaust systems, this alloy boasts 11% chromium, forming a passive surface layer essential for corrosion resistance. It delivers superior corrosion resistance at high temperatures, moderate strength, excellent formability, and cost-efficiency. Providing a notable improvement over carbon steel, Alloy 409 shines in conditions demanding enhanced resistance to corrosion and high-temperature oxidation. While its aesthetic appeal might be secondary, its mechanical strength and corrosion resistance make it an invaluable choice for numerous applications.
APPLICATIONS:
- Originally engineered for the automotive exhaust industry, Alloy 409 has proven its versatility across various industrial sectors. Noteworthy applications 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:
- Outstanding resistance to atmospheric and exhaust gas corrosion
- In most environments, a light surface rust develops, providing further corrosion protection but reducing surface aesthetics
HEAT RESISTANCE:
- Widely recognized for scaling resistance in intermittent service up to 1499°F (815°C) and up to 1247°F (675°C) in continuous service
WELDABILITY
- Easily weldable
- Pre-heat of 302 to 500°F (150 to 260°C) recommended
- Post-weld annealing at 1400 to 1499°F enhances weld ductility
- Post-weld annealing unnecessary for thin sections
- Typically, automotive exhaust tubing is welded without filler metal
Q1: What products can you offer?
A: We supply a diverse range of general steel types such as 310S, 316L, 304, 304L, 201, 904L, 316H, and more. Additionally, we offer duplex stainless steels like 2205, 2304, 2101, 2507, 904L, and high-nickel alloys including 800H and 600H.
Our extensive inventory boasts a variety of high-quality materials, including the robust 400 series and duplex stainless steels such as 2205, 2304, 2101, 2507, and 904L. Additionally, we carry high-nickel alloys like 800H and 600H, ensuring we meet the diverse needs of our clients.
Q2. Can you produce the products according to my own drawings?
Yes, we specialize in custom manufacturing and can create products based on your unique drawings to ensure they meet your exact specifications and requirements.
Q3. How does your factory do regarding quality control?
Quality is our cornerstone. From inception to completion, we maintain stringent quality control measures to ensure our products meet the highest standards.
Q4. Can I request to change the form of packaging and transportation?
Certainly! We offer flexible packaging and transportation options and can adapt them to suit your specific needs and preferences.
However, please be aware that any additional costs resulting from these changes will be your responsibility.
Q5. How does your factory do regarding quality control?
Quality is our cornerstone. From inception to completion, we maintain stringent quality control measures to ensure our products meet the highest standards.
Q6. How long is the delivery time?
A: Our standard delivery time ranges from 7 to 20 working days post-payment confirmation, ensuring timely and efficient service.
For urgent orders, we offer expedited processing to meet your timeline needs.
Q7. What is your Payment?
A: For seamless transactions, we accept 100% T/T in advance or Western Union for smaller orders.
B: Alternatively, you can choose a 30% T/T deposit with the remaining 70% due before shipment.
C: For larger orders, we provide the option of 100% Irrevocable LC at sight for your convenience.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Absolutely. Our superior materials are ideal for producing stainless steel pots, sinks, bowls, and more. Share your specific application with us, and we will adjust the mechanical properties accordingly to meet your exact needs.
Q9: How to get a sample?
A: We offer FREE samples for your evaluation and testing. For small pieces, we may even cover the courier cost, depending on the situation.
Q10: Which countries have you exported to?
A: Our high-quality stainless steel materials have been exported to a broad range of countries, including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and many others.
Q11: How do I visit your company?
A: Simply fly into Guangzhou Baiyun International Airport, and we will be there to extend a warm welcome and transport you to our facility for your visit.
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