| 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 Trailblazer in 410 Stainless Steel Tube Fabrication Services
DaXun's 409 stainless steel tube boasts exceptional corrosion resistance, making it an economical choice among stainless steels. With high tensile strength, it welds seamlessly using arc, resistance spot, and seam welding methods without compromising corrosion resistance. Ideal for diverse applications like vehicle and truck exhaust systems, heat exchangers, agricultural spreaders, fuel filters, gas turbine exhaust mufflers, and more-this grade excels in precise forming, toughness, and superior weldability.
Stainless Steel Welded Tubes
Our stainless steel tubular products are meticulously formed from premium stainless steel strips, expertly roll-formed and fusion-welded along the longitudinal seam. At Daxun, our unparalleled welding process employs no filler metal, ensuring superior 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 created through advanced piercing or hot extrusion processes. These tubes excel in large diameter-to-wall thickness ratios, providing superior external dimensional tolerances.
Quality, Delivery, Inspection
- At Jiangsu Daxun Alloy Co., Ltd., we uphold excellence with rigorous quality assurance tests such as flattening, pitting, resistance, mechanical, hardness tests, material positive identification, and expansion tests. Every meticulous test ensures our materials meet the highest standards for your demanding applications.
- Throughout production, we meticulously measure the diameter, thickness, and surface quality of our products. Standard delivery timelines range from 7 to 15 days. For custom-sized products, timelines may extend up to 20 days to ensure every detail meets your specifications.
We strictly adhere to our contractual delivery timelines, guaranteeing punctual and reliable service.
- We welcome and support inspections by customer-authorized third-party agencies at our facility.
- Experience our superior quality firsthand with free samples for rigorous testing.
- We offer on-site or video factory inspections, ensuring transparency and trust in our manufacturing process.
Discover the unrivaled stainless steel pipe manufacturing expertise of Daxun.
Our forming capabilities are unparalleled, featuring state-of-the-art 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.
Revealing Daxun's exceptional pipe processing capabilities.
As a vertically integrated manufacturer, Daxun offers comprehensive one-stop-shop solutions. Whether managing an entire project 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 Premier Destination for Superior Pipe Solutions.
With a suite of cutting-edge vertical and horizontal presses ranging from a remarkable 12,000 to a staggering 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. reigns supreme in the industry for its unparalleled pipe extrusion capabilities. This extraordinary technology enables us to produce the longest lengths and largest diameter pipes available on the market, guaranteeing unmatched quality and reliability for your most demanding high-temperature applications.
Jiangsu Daxun Alloy Co., Ltd. takes immense pride in being a trusted partner for the power generation sector, supplying essential components such as ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our precisely engineered products are crafted to meet the stringent requirements of nuclear, coal-fired, renewable energy, and combined cycle power plants, ensuring peak performance and efficiency in every application, no matter how challenging.
| 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 featuring 11% chromium. This exceptional composition makes it ideal for applications demanding superior oxidation or corrosion resistance where carbon steel and certain coated steels fall short. With robust oxidation resistance and excellent formability, the 409 tube stands out, despite its lower chromium concentration limiting its corrosion resistance compared to grades like 304, 430, or 439. Nevertheless, it surpasses mild steel in performance. The 409 tube accommodates various forming techniques including roll forming, stretch bending, deep drawing, and press forming. Post-annealing, 409 does not harden during cold treatment processes like press or stretch bending. Its weldability is fair, though caution is advised for applications involving shock loading due to grain growth in the heat-affected zone, impacting mechanical integrity. Predominantly used in automotive exhaust systems, the 409 tube's mechanical properties provide significant benefits to the automotive and agricultural sectors, offering remarkable resistance to exhaust gases and high-temperature environments. Mechanical properties take precedence over aesthetics, making 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 |
Premier Stainless Steel Sheet Suppliers in China
GENERAL PROPERTIES:
- Alloy 409, a ferritic stainless steel enriched with chromium and titanium, serves primarily in automobile exhaust systems. Containing 11% chromium, it meets the minimum requirement for forming a passive surface layer that imparts corrosion resistance. This alloy offers exceptional corrosion resistance at high temperatures, medium strength, good formability, and cost-effectiveness. Alloy 409 outperforms carbon steel in corrosion resistance and is a preferred choice in moderately demanding conditions where both high-temperature oxidation and corrosion resistance are beneficial. It is frequently 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 effective in various industrial applications, including:
- 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
- Forms a light surface rust in most atmospheres, which impedes further corrosion but may affect appearance
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 of 302 to 500oF (150 to 260oC) is recommended
- 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
Q1: What products can you offer?
A: We offer an extensive range of general steel types including 310S, 316L, 304, 304L, 201, 904L, 316H, and more. Our selection also includes duplex stainless steels like 2205, 2304, 2101, 2507, 904L, and high-nickel alloys such as 800H and 600H.
Delve into our extensive inventory featuring the 400 series and duplex stainless steels such as 2205, 2304, 2101, 2507, and 904L. Additionally, we offer high-nickel alloys, including 800H and 600H, catering to your diverse material needs.
Q2. Can you produce the products according to my own drawings?
Absolutely! We specialize in manufacturing products based on your precise drawings, ensuring they meet your exact specifications with exceptional craftsmanship.
Q3. How does your factory do regarding quality control?
Quality is our cornerstone. We are dedicated to maintaining the highest standards of quality, ensuring excellence at every stage of production.
Q4. Can I request to change the form of packaging and transportation?
Yes, we are flexible and can tailor the packaging and transportation methods to suit your specific requirements.
However, please be aware that any additional costs incurred during this customization process will be your responsibility.
Q5. How does your factory do regarding quality control?
Quality is our cornerstone. We are dedicated to maintaining the highest standards of quality, ensuring excellence at every stage of production.
Q6. How long is the delivery time?
A: Typically, our delivery time ranges from 7 to 20 working days post payment confirmation.
For urgent orders, we offer expedited processing to meet your specific timeline requirements.
Q7. What is your Payment?
A: For smaller orders, we offer the convenience of 100% T/T advance or Western Union.
B: Opt for a balanced payment method with 30% T/T upfront and the remaining 70% before shipment.
C: For large-scale orders, we accept 100% Irrevocable LC at sight, ensuring secure transactions.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Certainly! Our premium materials are ideal for producing stainless steel pots, sinks, bowls, and more. Let us know your specific needs, and we'll adjust the mechanical properties to perfectly suit your application.
Q9: How to get a sample?
A: Experience our quality firsthand with FREE samples for your evaluation. For small pieces, we may even cover the courier costs, depending on the circumstances.
Q10: Which countries have you exported to?
A: We have proudly exported our superior stainless steel materials to a variety 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: Simply fly into Guangzhou Baiyun International Airport. We will be there to pick you up and extend a warm welcome to our facility, ensuring a comfortable visit.
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