| 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 |
Premier Global Leader in 410 Stainless Steel Tube Fabrication Services
DaXun's 409 Stainless Steel Tube: The epitome of cost-efficiency and corrosion resistance. Renowned for its high tensile strength, this stainless steel can be effortlessly welded using arc welding, resistance spot welding, and seam welding without compromising its corrosion resistance. Tailored for diverse applications, it is integral in vehicle and truck exhaust systems, heat exchangers, agricultural equipment, fuel filtration, gas turbine exhaust mufflers, and other uses demanding precise forming, toughness, and enhanced weldability. Experience the unparalleled advantage of improved weldability with DaXun's 409 Stainless Steel Tube.
Exquisite Stainless Steel Welded Tubes
Our stainless steel tubular products, crafted from premium stainless steel strips, are masterfully roll-formed and fusion-welded along the longitudinal seam. At Daxun, we utilize a no-filler metal welding process, ensuring unmatched integrity and quality.
Versatile Stainless Steel 409 Applications
- Aerospace Structures;
- Automobile Exhaust Systems and Engine Components;
- Precision Medical Devices;
- High-Quality Knives and Kitchen Utensils;
- Petrochemical Industry Applications;
- Durable Stainless Steel Cutlery and Kitchen Utensils;
- Manufacturing Robust Flat Springs;
- Precision Hand Tools;
- Reliable Bolts, Nuts, Springs, and Fasteners;
High-Precision Stainless Steel Seamless Tube
Our stainless steel seamless tubes are meticulously crafted from hollow sections using advanced piercing or hot extrusion processes. These tubes excel in applications requiring large diameter-to-wall thickness ratios, offering superior external dimensional tolerances.
Excellence in Quality, Prompt Delivery, and Thorough Inspection
- Jiangsu Daxun Alloy Co., Ltd. is dedicated to excellence, implementing rigorous quality assurance tests, including flattening, pitting and resistance tests, mechanical tests, hardness tests, material positive identification, and expansion tests. Each 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, with special-sized products possibly extending up to 20 days, ensuring every detail meets your specifications.
We strictly adhere to our contract delivery timelines, ensuring punctual and reliable service.
- We welcome and support inspections by customer-authorized third-party agencies at our factory, ensuring transparency and trust.
- We offer free samples for rigorous testing, allowing you to experience our superior quality firsthand.
- We provide on-site or video factory inspection options, enhancing transparency and trust in our manufacturing process.
Discover the unparalleled stainless steel pipe manufacturing capabilities of Daxun, where innovation meets excellence.
Our forming capabilities are second to none, 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.
Unveiling Daxun's exceptional pipe processing capabilities, unmatched in the industry.
As a vertically integrated manufacturer, Daxun provides a comprehensive 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 Premier Destination for Bigger, Better Pipe Solutions.
With state-of-the-art vertical and horizontal presses boasting capacities from an impressive 12,000 to a staggering 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.
Jiangsu Daxun Alloy Co., Ltd. is proud to be 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 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.
| 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 11% chromium content. This composition makes it ideally suited for applications demanding robust oxidation and corrosion resistance where carbon steel and certain coated steels fall short. While Grade 409's chromium concentration results in lower corrosion resistance compared to grades like 304, 430, or 439, it still outperforms mild steel. The material excels in oxidation resistance and formability. Techniques such as roll forming, stretch bending, deep drawing, and press forming are highly effective for shaping 409. Post-annealing, 409 does not harden under cold treatment via warm and roll forming processes, including press or stretch bending. Despite its fair weldability, 409 is not recommended for shock-loaded structures due to grain growth in the heat-affected zones, which impacts mechanical quality. Predominantly used in automotive exhaust systems, this stainless steel tube offers substantial mechanical benefits for both the automotive and agricultural sectors. It effectively withstands corrosion from exhaust gases and high-temperature environments. While its mechanical properties are paramount, 409 is not advisable 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 |
Foremost Stainless Steel Sheet Suppliers in China
GENERAL PROPERTIES:
- Alloy 409, a remarkable ferritic stainless steel, is expertly stabilized with chromium and titanium, making it an ideal choice for automobile exhaust systems. Comprising 11% chromium, it meets the essential threshold for forming a passive surface layer that ensures corrosion resistance. Notably, this alloy boasts excellent corrosion resistance at high temperatures, moderate strength, good formability, and an economical price point. Alloy 409 surpasses carbon steel in corrosion resistance and is preferred in moderately demanding conditions where its superior resistance to corrosion and high-temperature oxidation offers distinct advantages. It is frequently utilized in applications where mechanical properties and corrosion resistance are prioritized over aesthetics.
APPLICATIONS:
- Initially developed for the automotive exhaust industry, Alloy 409 has proven its versatility across a spectrum of industrial applications. Prominent uses of Alloy 409 encompass:
- 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 may develop, which inhibits further corrosion but diminishes surface appearance
HEAT RESISTANCE:
- Renowned for resistance 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 enhances weld ductility
- Post-weld annealing is unnecessary for welding thin sections
- Automotive exhaust tubing welding typically requires no filler metal
Q1: What products can you offer?
A: We provide a vast range of general steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, among others. Additionally, our selection features duplex stainless steels such as 2205, 2304, 2101, 2507, and high-nickel alloys like 800H and 600H.
Our extensive inventory includes a diverse selection of stainless steel products such as the 400 series and advanced duplex grades like 2205, 2304, 2101, 2507, and 904L. We also stock high-nickel alloys including 800H and 600H, ensuring we meet a wide range of industrial needs.
Q2. Can you produce the products according to my own drawings?
Yes, we specialize in custom manufacturing based on your drawings, ensuring that every product meets your exact specifications and requirements.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We maintain stringent quality control measures throughout our production process to ensure the highest standards are met.
Q4. Can I request to change the form of packaging and transportation?
Yes, we offer flexible packaging and transportation options to suit your specific needs.
However, please note that any additional costs incurred due to changes in packaging or transportation 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 time ranges from 7 to 20 working days after payment confirmation.
For urgent orders, we offer expedited processing to meet your tight deadlines.
Q7. What is your Payment?
A: For convenience, we accept 100% T/T advance or Western Union for smaller orders.
B: For larger orders, opt for 30% T/T upfront, with the remaining 70% due before shipment.
C: For substantial orders, we accept 100% Irrevocable LC at sight.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Absolutely, we can. Our high-quality material is ideal for manufacturing products like stainless steel pots, sinks, and bowls. Just inform us of your specific application, and we'll adjust the mechanical properties to meet your exact needs.
Q9: How to get a sample?
A: Enjoy FREE samples for your evaluation and testing. Depending on the situation, we may even cover the courier cost for small pieces.
Q10: Which countries have you exported to?
A: We are proud to have exported our stainless steel materials to numerous countries including 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 will personally greet you and welcome you to our facility.
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