| 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, positioning it as one of the most cost-effective stainless steel options available. With its high tensile strength, this tube is easily welded using arc welding techniques and is also suitable for resistance spot welding and seam welding, all without compromising its corrosion resistance. Versatile and durable, it is ideal for a wide range of applications, including automotive and truck exhaust systems, heat exchangers, agricultural spreaders, fuel filters, gas turbine exhaust mufflers, and any situation demanding precise forming, toughness, and enhanced weldability.
Stainless Steel Welded Tubes
Our premium stainless steel tubular products are crafted with meticulous precision from high-quality stainless steel strips. These strips are roll-formed and fusion-welded along the longitudinal seam, ensuring unmatched product integrity. At Daxun, we use a filler metal-free welding process, setting the industry standard for excellence.
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 expertly manufactured from hollow sections produced via advanced piercing or hot extrusion methods. These seamless tubes excel in applications requiring large diameter-to-wall thickness ratios, delivering superior external dimensional tolerances.
Quality, Delivery, Inspection
- At Jiangsu Daxun Alloy Co., Ltd., we are dedicated to excellence through comprehensive quality assurance tests. Our rigorous evaluations include flattening, pitting, resistance tests, mechanical tests, hardness assessments, material positive identification, and expansion tests. Each meticulous test ensures our materials meet the highest standards for your critical applications.
- Throughout the production process, we precisely measure the diameter, thickness, and surface quality of our products to uphold exceptional standards. Standard delivery timelines range from 7 to 15 days, with special-sized products potentially extending up to 20 days to ensure every detail meets your exact specifications.
We strictly adhere to the agreed-upon delivery timelines in our contracts, guaranteeing punctual and reliable service.
- We welcome and support inspections by customer-authorized third-party agencies at our factory, ensuring full transparency and confidence in our processes.
- We offer complimentary samples for rigorous testing, allowing you to experience our superior quality firsthand.
- We provide on-site or video factory inspection options to ensure 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 technology for tube and pipe manufacturing. We pride ourselves on having one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
Unveiling Daxun's extraordinary pipe processing capabilities.
As a vertically integrated manufacturer, Daxun offers a comprehensive one-stop-shop solution. Whether managing entire projects or handling specific machining jobs, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
Daxun: Your go-to destination for Bigger, Better Pipe Solutions.
With state-of-the-art vertical and horizontal presses boasting capacities 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 market's longest lengths and largest diameter pipes, 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 including 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, guaranteeing 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 stainless steel tube enriched with 11% chromium, purposefully crafted for applications demanding superior oxidation and corrosion resistance beyond the capabilities of carbon and coated steels. While boasting robust oxidation resistance and excellent formability, its lower chromium content results in comparatively reduced corrosion resistance versus grades like 304, 430, or 439. Nevertheless, it outperforms mild steel in many aspects. Versatile in its applications, 409 can be formed through roll forming, stretch bending, deep drawing, and press forming. Post-annealing, it remains non-hardenable under cold treatments involving warm and roll forming techniques. Despite its fair weldability, 409 should be avoided in shock-loaded structures due to grain structure expansion in heat-affected zones, impacting mechanical integrity. Predominantly utilized in automotive exhaust systems, as well as in agricultural machinery, the 409 stainless steel tube excels in resisting exhaust gas corrosion and high-temperature conditions. Prioritizing mechanical properties over aesthetic appeal, it is not advisable for decorative applications.
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 that has been expertly stabilized with chromium and titanium. Primarily designed for automotive exhaust systems, it boasts numerous advantages. Comprising 11% chromium, this alloy meets the minimum requirement for forming the passive surface coating that endows stainless steel with exceptional corrosion resistance. It offers robust corrosion resistance at elevated temperatures, moderate strength, good formability, and an attractive overall cost. Alloy 409 surpasses carbon steel in resisting corrosion and serves as a superior alternative in moderately demanding environments, where its high resistance to corrosion and high-temperature oxidation offer significant benefits. It is generally used in applications where mechanical properties and corrosion resistance take precedence over appearance.
APPLICATIONS:
- Although initially designed for automotive exhaust systems, Alloy 409 has found successful application in a range of industrial settings. Here are some noteworthy examples:
- 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:
- Demonstrates excellent resistance to atmospheric and exhaust gas corrosion
- In most environments, a light surface rust may form, which acts as a protective barrier against further corrosion but may affect surface appearance.
HEAT RESISTANCE:
- Classified as resistant to scaling in intermittent service up to 1499oF (815oC ) and up to 1247oF (675oC) in continuous service
WELDABILITY
- Highly weldable
- Pre-heating of 302 to 500oF (150 to 260oC) is advisable
- Post-weld annealing at 1400 to 1499oF enhances weld ductility
- Post-weld annealing is optional when welding thin sections
- Automotive exhaust tubing is commonly welded without filler metal
Q1: What products can you offer?
A: We provide an extensive range of general steel types, including 310S, 316L, 304, 304L, 201, 904L, 316H, and more. Additionally, our offerings include duplex stainless steels such as 2205, 2304, 2101, 2507, and high-nickel alloys like 800H and 600H.
Our extensive inventory features a wide array of premium alloys, including the 400 series and stainless steel grades such as 2205, 2304, 2101, 2507, and 904L. In addition, we proudly offer high-nickel alloys like 800H and 600H, ensuring we meet diverse industrial needs.
Q2. Can you produce the products according to my own drawings?
Yes, we can precisely manufacture products based on your detailed drawings to ensure they match your exact specifications and requirements.
Q3. How does your factory do regarding quality control?
Quality is our utmost priority. We are committed to maintaining stringent quality control standards throughout the entire production process, ensuring exceptional products from start to finish.
Q4. Can I request to change the form of packaging and transportation?
Yes, we are flexible and can modify packaging and transportation forms according to your specific requests and needs.
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 utmost priority. We are committed to maintaining stringent quality control standards throughout the entire production process, ensuring exceptional products 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, ensuring a timely and efficient process.
For urgent orders, we offer expedited services to meet your specific timeline and deliver your products as quickly as possible.
Q7. What is your Payment?
A: For your convenience, we offer various payment options including 100% T/T advance or Western Union for smaller orders.
B: Choose 30% T/T upfront, with the remaining 70% due before shipment for added flexibility.
C: For substantial orders, we accept 100% Irrevocable LC at sight for a secure and straightforward transaction.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Absolutely, we specialize in DDQ. Our top-quality material is ideal for manufacturing stainless steel pots, sinks, bowls, and more. Inform us of your specific application, and we will adjust the mechanical properties to meet your precise requirements.
Q9: How to get a sample?
A: We offer FREE samples for your thorough evaluation and testing. For small pieces, we may cover the courier cost depending on the situation.
Q10: Which countries have you exported to?
A: We proudly export our stainless steel materials to a wide range 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: Fly into Guangzhou Baiyun International Airport, where we will be delighted to pick you up and warmly welcome you to our facility.
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