| 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 Authority in Premium 410 Stainless Steel Tube Fabrication
DaXun's 409 stainless steel tube stands out with its remarkable corrosion resistance and cost-efficiency among stainless steel varieties. Boasting high tensile strength, it offers seamless weldability, be it through arc welding, resistance spot welding, or seam welding, without compromising its corrosion resistance. Ideal for diverse applications such as vehicle and truck exhaust systems, heat exchangers, agricultural spreaders, fuel filters, and gas turbine exhaust mufflers, this stainless steel is designed for scenarios demanding precise forming, toughness, and superior weldability. The enhanced weldability of this grade is one of its prime advantages.
Superior Stainless Steel Welded Tubes
Our stainless steel tubular products, crafted with precision from top-quality stainless steel strips, are meticulously roll-formed and fusion-welded along the longitudinal seam. At Daxun, our state-of-the-art welding process, devoid of filler metal, guarantees unmatched structural integrity.
Applications of Stainless Steel 409
- Aerospace structural components;
- Automobile exhaust systems and engine parts;
- Medical instruments and devices;
- High-grade knives and kitchen utensils;
- Petrochemical industry applications;
- Stainless steel cutlery and kitchen tools;
- Precision manufacturing of flat springs;
- High-durability hand tools;
- Robust bolts, nuts, springs, and fasteners;
Seamless Stainless Steel Tubes
Our seamless stainless steel tubes, expertly fashioned from hollow sections via advanced piercing or hot extrusion, cater to large diameter-to-wall thickness ratios, ensuring superior external dimensional tolerances.
Commitment to Quality, Timely Delivery, and Rigorous Inspection
- At Jiangsu Daxun Alloy Co., Ltd., we uphold excellence through stringent quality assurance tests, including flattening, pitting, resistance tests, mechanical and hardness tests, material positive identification, and expansion tests. Each test ensures our materials meet your stringent requirements.
- From production to delivery, we meticulously measure diameter, thickness, and surface quality. Standard delivery spans 7 to 15 days. For custom-sized products, the timeline may extend up to 20 days, ensuring precise adherence to your specifications.
We are committed to adhering to delivery timelines as per contract terms, ensuring punctual and reliable service.
- Customer-authorized third-party inspections are welcome and supported at our factory.
- We offer complimentary samples for rigorous testing, allowing you to experience our unmatched quality firsthand.
- We provide on-site or video factory inspections, fostering transparency and trust in our manufacturing process.
Explore the unparalleled stainless steel pipe manufacturing prowess of Daxun.
Our forming capabilities are unparalleled, featuring state-of-the-art extrusion and cold working assets for tube and pipe production. We house one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
Showcasing Daxun's exceptional pipe processing expertise.
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 encompass straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and other specialized services.
Daxun: Your Ultimate Destination for Bigger, Better Pipe Solutions.
With state-of-the-art vertical and horizontal presses boasting capacities ranging from 12,000 to an awe-inspiring 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. Our commitment to excellence guarantees that each pipe we manufacture meets the highest standards, making us the go-to choice for top-tier performance and durability in all your projects.
Jiangsu Daxun Alloy Co., Ltd. is immensely 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 focus on innovation and precision, our products provide the reliability and durability necessary to support the energy needs of today and tomorrow.
| 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 that boasts an impressive 11% chromium content. Renowned for its exceptional oxidation and corrosion resistance, it stands out where carbon steel and some coated steels fall short. The 409 stainless steel tube offers robust oxidation resistance and excellent formability, although its lower chromium concentration means it has reduced corrosion resistance compared to grades like 304, 430, or 439. Nevertheless, its performance surpasses that of mild steel. This versatile tube can be roll-formed, stretch-bent, deep-drawn, or press-formed, and it remains non-hardenable after annealing during cold treatments. While it exhibits fair weldability, it's not advisable for use in shock-loaded structures due to grain growth in the heat-affected zone, which impacts mechanical integrity. Widely utilized in automotive exhaust systems and agricultural applications, the 409 tube excels in withstanding exhaust gas corrosion and high temperatures. Its mechanical properties are crucial in these industries, making it a preferred choice despite its less decorative 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, uniquely stabilized with chromium and titanium. It is predominantly used in automobile exhaust systems due to its superior properties. Containing 11% chromium, it forms a passive surface layer that grants exceptional corrosion resistance. This alloy boasts high corrosion resistance at elevated temperatures, moderate strength, good formability, and an overall cost-effective profile. Alloy 409 surpasses carbon steel in corrosion resistance and is preferred in mildly demanding environments for its superior resistance to corrosion and high-temperature oxidation. It is specifically chosen for applications prioritizing mechanical properties and corrosion resistance over aesthetics.
APPLICATIONS:
- Originally designed for the automotive exhaust industry, Alloy 409 has proven its versatility across various industrial applications. Examples of its widespread usage 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:
- Exceptional resistance to atmospheric and exhaust gas corrosion
- In most environments, a light surface rust forms, acting as a protective barrier against further corrosion, albeit reducing surface appeal
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
- Recommended pre-heat of 302 to 500oF (150 to 260oC)
- Post-weld annealing at 1400 to 1499oF improves weld ductility
- Post-weld annealing is not necessary for welding thin sections
- Typically, automotive exhaust tubing is welded without filler metal
Q1: What products can you offer?
A: We offer a comprehensive range of general steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, among others. Additionally, we provide duplex stainless steels such as 2205, 2304, 2101, 2507, and high-nickel alloys like 800H and 600H.
Our product line also includes 400 series stainless steels, duplex stainless steels like 2205, 2304, 2101, 2507, and high-nickel alloys such as 800H and 600H.
Q2. Can you produce the products according to my own drawings?
Certainly! We specialize in manufacturing products that align precisely with your drawings, ensuring they meet your exact specifications.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We ensure the highest standards are upheld from the initial stages to the final product. Our rigorous quality control processes ensure excellence at every step.
Q4. Can I request to change the form of packaging and transportation?
Yes, we are flexible and can modify packaging and transportation as per your specific requirements.
However, please be aware that any additional costs incurred due to these changes will be your responsibility.
Q5. How does your factory do regarding quality control?
Quality is our top priority. We ensure the highest standards are upheld from the initial stages to the final product. Our rigorous quality control processes ensure excellence at every step.
Q6. How long is the delivery time?
A: Our standard delivery time ranges from 7 to 20 working days post payment confirmation.
For urgent orders, we offer expedited processing to meet your required timeline.
Q7. What is your Payment?
A: For ease of transactions, we accept 100% T/T in 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: Absolutely! Our premium material is ideal for creating stainless steel pots, sinks, bowls, and more. Specify your application, and we'll tailor the mechanical properties to suit your needs.
Q9: How to get a sample?
A: We offer FREE samples for your evaluation and testing. For small pieces, we might even cover the courier cost, depending on the situation.
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 more.
Q11: How do I visit your company?
A: Fly into Guangzhou Baiyun International Airport, and we'll be there to greet you and escort you to our facility.
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