| 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 boasts exceptional corrosion resistance, making it one of the most cost-effective stainless steel varieties. With high tensile strength, it is easily welded using arc welding, resistance spot welding, and seam welding techniques. Significantly, welding does not compromise the corrosion resistance of the 409 stainless steel tube. It is ideal for various applications including vehicle and truck exhaust systems, heat exchangers, agricultural spreaders, fuel filters, gas turbine exhaust mufflers, and other uses demanding precise forming, toughness, and enhanced weldability. This stainless steel grade stands out for its enhanced weldability.
Stainless Steel Welded Tubes
Our stainless steel tubular products are a testament to precision and quality. Crafted from premium stainless steel strips, they are roll-formed and fusion-welded along the longitudinal seam without using filler metal, ensuring unmatched integrity. This meticulous process sets Daxun apart in the industry.
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, crafted from hollow sections formed through advanced piercing or hot extrusion processes, are ideal for large diameter-to-wall thickness ratios. These tubes ensure superior external dimensional tolerances.
Quality, Delivery, Inspection
- Jiangsu Daxun Alloy Co., Ltd. upholds a commitment to excellence through rigorous quality assurance tests. These include 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 extending up to 20 days, ensuring each detail meets your exact specifications.
We strictly adhere to delivery timelines outlined in our contracts, ensuring punctual and reliable service for our clients.
- We welcome and support inspections by customer-authorized third-party agencies at our factory, reinforcing our commitment to transparency and quality.
- We offer free samples for rigorous testing, giving you firsthand experience of our superior quality.
- We provide on-site or video factory inspection options, ensuring transparency and trust in our manufacturing process.
Discover the unparalleled stainless steel pipe manufacturing capabilities of Daxun.
Our forming capabilities are second to none, featuring state-of-the-art extrusion and cold working assets for tube and pipe manufacturing. We are proud to house one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
Unveiling Daxun's exceptional pipe processing capabilities.
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 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 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, durability, and reliability for your most demanding applications. Experience the pinnacle of precision and performance with our advanced manufacturing processes.
Jiangsu Daxun Alloy Co., Ltd. is proud to be a trusted supplier to the power generation sector, delivering critical components that include ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our meticulously engineered products are specifically designed to meet the rigorous demands of nuclear, coal-fired, renewable energy, and combined cycle power plants, ensuring optimal performance, superior efficiency, and unmatched longevity in every application. Trust in our expertise to power your energy solutions with excellence.
| 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 boasting 11% chromium. This makes it an excellent choice for applications demanding superior oxidation or corrosion resistance where carbon steel and some coated steels fall short. While 409 tubes showcase robust oxidation resistance and formability, their corrosion resistance is modest due to the lower chromium content. Compared to grades 304, 430, or 439, 409 offers less corrosion resistance but significantly outperforms mild steel. The 409 grade is versatile in forming techniques, including roll forming, stretch bending, deep drawing, and press forming. Post-annealing, 409 doesn't harden during warm and roll forming processes like press or stretch bending. Its weldability is fair, although it's not suited for shock-loaded structures due to grain growth in the heat-affected zone impacting mechanical quality. Primarily employed in tubing and stampings for automotive exhaust systems, 409 stainless steel tubes are prized in the automotive and agricultural sectors. They adeptly resist corrosion from exhaust gases and high-temperature conditions. Mechanical properties take precedence over aesthetics, making 409 unsuitable for decorative uses.
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 |
Leading Stainless Steel Sheet Suppliers in China
GENERAL PROPERTIES:
- Alloy 409 is a ferritic stainless steel enriched with chromium and titanium. It is primarily designed for automobile exhaust systems, comprising 11% chromium-the essential amount for the passive surface layer that grants stainless steels their exceptional corrosion resistance. With outstanding resistance to high temperatures, medium mechanical strength, and excellent formability, all at an economical price, Alloy 409 outperforms carbon steel in slightly demanding conditions. It is ideal for applications where mechanical properties and corrosion resistance are more critical than aesthetic appeal.
APPLICATIONS:
- Originally crafted for the automobile exhaust sector, Alloy 409 has proven versatile across various industrial uses. Notable 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:
- Superior resistance against atmospheric and exhaust gas corrosion
- In most environments, a light rust layer forms that inhibits 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
- Preheat of 302 to 500oF (150 to 260oC) recommended
- Post-weld annealing at 1400 to 1499oF to enhance weld ductility
- Post-weld annealing not required for thin sections
- Automotive exhaust tubing typically welded without filler metal
Q1: What products can you offer?
A: We provide a comprehensive selection of general steel types, including 310S, 316L, 304, 304L, 201, 904L, and 316H. We also offer duplex stainless steels such as 2205, 2304, 2101, 2507, and 904L, along with high-nickel alloys like 800H and 600H.
Explore our robust inventory featuring an array of 400 series and duplex stainless steels such as 2205, 2304, 2101, 2507, and 904L. Additionally, we stock premium high-nickel alloys including 800H and 600H, suited for demanding applications.
Q2. Can you produce the products according to my own drawings?
Absolutely! We specialize in crafting products tailored to your drawings, ensuring they align perfectly with your precise specifications.
Q3. How does your factory do regarding quality control?
Quality is our paramount concern. We rigorously uphold stringent quality standards throughout every stage of production, from inception to completion.
Q4. Can I request to change the form of packaging and transportation?
Certainly, we are flexible and can adjust the packaging and transportation forms to meet your specific requirements.
However, please be aware that any additional costs that arise due to these changes will be your responsibility.
Q5. How does your factory do regarding quality control?
Quality is our paramount concern. We rigorously uphold stringent quality standards throughout every stage of production, from inception to completion.
Q6. How long is the delivery time?
A: Our usual delivery timeframe ranges from 7 to 20 working days post payment confirmation.
For urgent requirements, we can expedite the process to align with your timeline.
Q7. What is your Payment?
A: For your convenience, we offer several payment options: 100% T/T in advance or Western Union for smaller orders.
B: Opt for a 30% T/T deposit, with the remaining 70% payable before shipment.
C: For substantial orders, we gladly accept 100% Irrevocable LC at sight.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Absolutely, our top-tier material is ideal for manufacturing stainless steel pots, sinks, bowls, and more. Share your specific needs, and we'll fine-tune the mechanical properties accordingly.
Q9: How to get a sample?
A: Enjoy the convenience of FREE samples for your evaluation and testing. Depending on the situation, we might even cover the courier cost for small pieces.
Q10: Which countries have you exported to?
A: We have proudly exported our exceptional stainless steel materials to various countries including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and many others.
Q11: How do I visit your company?
A: You can conveniently fly into Guangzhou Baiyun International Airport, where we'll be delighted to pick you up and welcome you to our facility.
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