| 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 Pioneer in 410 Stainless Steel Tube Fabrication Services
DaXun's 409 stainless steel tube stands as a paragon of cost-efficiency and robust corrosion resistance. With exceptional tensile strength, it seamlessly supports arc, resistance spot, and seam welding without compromising its corrosion-resistant properties. This versatility makes it ideal for a myriad of applications - from vehicle and truck exhaust systems to heat exchangers, agricultural spreaders, fuel filters, gas turbine exhaust mufflers, and more. Wherever precise forming, toughness, and superior weldability are required, DaXun's 409 stainless steel tube delivers. Its hallmark attribute is enhanced weldability, a key advantage that sets it apart.
Stainless Steel Welded Tubes: Precision and Strength
Our stainless steel tubular products are the epitome of craftsmanship. Made from premium stainless steel strips, these tubes are expertly roll-formed and fusion-welded along the longitudinal seam. At Daxun, our state-of-the-art welding process uses no filler metal, ensuring unmatched integrity and performance.
Stainless Steel 409: Versatile 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: Ultimate Precision
Our stainless steel seamless tubes are engineered from hollow sections via cutting-edge piercing or hot extrusion methods. These tubes excel in large diameter-to-wall thickness ratios, offering unparalleled external dimensional tolerances and consistency.
Commitment to Quality, Delivery, and Inspection
- At Jiangsu Daxun Alloy Co., Ltd., we uphold a commitment to excellence with rigorous quality assurance tests. These include flattening, pitting, resistance, mechanical, and hardness tests, along with material positive identification and expansion tests, ensuring our materials meet your exacting standards.
- Throughout production, we precisely measure our products' diameter, thickness, and surface quality. Standard delivery timelines range from 7 to 15 days, extending up to 20 days for special-sized products to meet your specifications meticulously.
We strictly adhere to the delivery timelines outlined in our contracts, guaranteeing punctual and reliable service.
- Third-party inspections by customer-authorized agencies are welcomed and supported at our factory, ensuring transparency and trust.
- Experience our superior quality firsthand with free sample offerings for rigorous testing.
- We offer on-site or video factory inspection options, promoting transparency and trust in our manufacturing process.
Discover Daxun's unmatched stainless steel pipe manufacturing prowess.
Our forming capabilities are unrivaled, featuring cutting-edge extrusion and cold working assets for tube and pipe manufacturing. We house one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
Unveiling Daxun's Superior Pipe Processing Prowess
As a vertically integrated manufacturer, Daxun offers a comprehensive one-stop-shop solution. Whether managing entire projects or specific machining jobs, our capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
Daxun: Your Premier Choice for Bigger, Better Pipe Solutions
With cutting-edge vertical and horizontal presses ranging from a formidable 12,000 to an awe-inspiring 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. leads the industry in comprehensive pipe extrusion capabilities. Our advanced technology enables the production of the longest lengths and largest diameter pipes on the market, guaranteeing unmatched quality and reliability for even the most challenging applications.
Jiangsu Daxun Alloy Co., Ltd. is a trusted ally in the power generation sector, providing essential components such as ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our precision-engineered products are crafted to withstand the stringent requirements of nuclear, coal-fired, renewable energy, and combined cycle power plants, ensuring peak 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 stable, ferritic general-purpose stainless steel tube boasting an 11% chromium content. This composition makes it ideal for applications demanding oxidation or corrosion resistance beyond what carbon steel and certain coated steels can provide. Although Grade 409 exhibits excellent oxidation resistance and formability, its lower chromium content results in reduced corrosion resistance compared to grades 304, 430, and 439. Nevertheless, it outperforms mild steel. The tube can undergo roll forming, stretch bending, deep drawing, and press forming. Post-annealing, 409 will not harden during cold treatment, making it suitable for warm and roll forming processes like press or stretch bending. While 409 offers reasonable weldability, it is not recommended for shock-loaded structures due to grain growth in heat-affected zones, which adversely affects mechanical properties. Predominantly used in automotive exhaust systems, the mechanical properties of this tube are advantageous in the automotive and agricultural sectors, providing substantial resistance to corrosion from exhaust gases and high-temperature environments. Despite these benefits, it is not recommended for decorative purposes due to its mechanical focus over aesthetic appeal.
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 premium ferritic stainless steel, enhanced with chromium and titanium for stability. Its primary use is in automobile exhaust systems, featuring 11% chromium to form a passive surface coating that ensures corrosion resistance. With robust performance at high temperatures, medium strength, good formability, and cost-effectiveness, Alloy 409 outperforms carbon steel in slightly demanding conditions, offering superior resistance to corrosion and oxidation. Ideal for applications prioritizing mechanical properties and corrosion resistance over appearance.
APPLICATIONS:
- Originally designed for the automobile exhaust sector, Alloy 409 has found success in various industrial applications. Notable uses 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:
- Exhibits strong resistance to atmospheric and exhaust gas corrosion
- In many environments, a light surface rust may form, which can slow further corrosion but may affect surface aesthetics
HEAT RESISTANCE:
- Classified as resistant to scaling in intermittent service up to 1499oF (815oC ) and continuous service up to 1247oF (675oC)
WELDABILITY
- Easily weldable
- Pre-heat of 302 to 500oF (150 to 260oC) is advised
- Post-weld annealing at 1400 to 1499oF improves weld ductility
- Post-weld annealing is unnecessary for welding thin sections
- Automotive exhaust tubing is typically welded without filler metal
Q1: What products can you offer?
A: We provide a comprehensive range of general steel types such as 310S, 316L, 304, 304L, 201, 904L, 316H, and more. Additionally, we offer duplex stainless steels like 2205, 2304, 2101, 2507, 904L, and high-nickel alloys including 800H and 600H.
Our extensive inventory includes premium 400 series, and duplex stainless steels such as 2205, 2304, 2101, 2507, and 904L. Additionally, we carry high-nickel alloys including 800H and 600H, ensuring a wide range of high-performance materials for your needs.
Q2. Can you produce the products according to my own drawings?
Yes, we specialize in custom manufacturing and can produce products based on your exact drawings to ensure they meet your precise specifications.
Q3. How does your factory do regarding quality control?
Quality is our top priority. We adhere to stringent quality control processes, ensuring that we consistently maintain high-quality standards from start to finish.
Q4. Can I request to change the form of packaging and transportation?
Yes, we are flexible with packaging and transportation and can modify them according to your specific requests.
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 adhere to stringent quality control processes, ensuring that we consistently maintain 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 specific timeline.
Q7. What is your Payment?
A: For smaller orders, we offer 100% T/T advance or Western Union for maximum convenience.
B: Alternatively, you can opt for 30% T/T upfront, with the remaining 70% due before shipment.
C: For large-scale orders, we accept 100% Irrevocable LC at sight.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Absolutely, we excel in this area. Our top-tier material is ideal for manufacturing high-quality stainless steel pots, sinks, bowls, and more. Share your specific application, and we'll tailor the mechanical properties to meet your precise requirements.
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 costs, depending on the circumstances.
Q10: Which countries have you exported to?
A: We have proudly exported our superior stainless steel materials to a multitude 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, and we will personally welcome you and ensure your comfortable arrival at our facility.
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