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Stainless steel 409

409 stainless steel is a Ferritic steel that offers good mechanical properties and high-temperature corrosion resistance. It is commonly considered as a chromium stainless steel, with applications in exhaust systems of automobiles and applications that demand weldability.

Classification :

Keywords: Handheld refractometer

PRODUCT DETAILS

Product introduction

409 stainless steel is a Ferritic steel that offers good mechanical properties and high-temperature corrosion resistance. It is commonly considered as a chromium stainless steel, with applications in exhaust systems of automobiles and applications that demand weldability.
409 steels are also available in highly stabilized forms, such as grades S40930, S40920 and S40910. The stability of these grades is provided by the presence of niobium, titanium, or both, in the composition of steels.

Technical data

Chemical Composition

Grade C Mn Si P S Cr Ni Ti
409 min.
max.
-
0.08
-
1.00
-
1.00
-
0.045
-
0.045
10.5
11.75
-
0.5
6x C
0.75


Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
409 450 240 25 75 131


Physical Properties

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (μm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100°C (J/kg.K) Electrical Resistivity (nΩ.m)
0-100°C 0-315°C 0-538°C at 100°C at 500°C
409 7800 200 11.0 11.7 12.4 25.8 27.5 460 600


Grade Specification Comparison

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
409 S40900 409S19 - 1.4512 X6CrTi12 - SUH 409


Possible Alternative Grades

Grade Properties
3CR12 Easy to weld and good corrosion resistance. Heavy sections are more easily available when compared to 409.
304 High heat resistance and corrosion resistance. Grade 304 is expensive.
321 Better heat resistance when compared to 304 or 409.
Aluminized steel Cheaper than grade 409 stainless steel, but less resistant to exhaust gases.

 

Warehouse storage

Shandong Jienuo Metal Products Co., Ltd. has a registered capital of 250 million yuan, more than 635 employees, 100 million yuan of property/plant equipment, covering an area of ​​more than 300 acres, and has passed the international quality management system, energy management system, occupational health and safety management system and other standards. The company has advanced production equipment, superb technical force, excellent management and technical personnel, and strong financial strength to provide a strong guarantee for the production of high-quality, sophisticated and cutting-edge products. 

 

 

Packing and delivery

The company has ISO9001 certification, EU CE10219 system certification, and Swiss SGS quality standard certification. In the future, the company will be a comprehensive modern enterprise featuring international trade and modern logistics as its development direction. Work together to make unremitting efforts for the green future of the steel industry in China and the world. 

 

 

Application field

Widely used in prefabricated steel structure buildings, glass curtain wall engineering, steel structure engineering, large venues, airport construction, highways, roads, decorative guardrails, tower crane manufacturing, photovoltaic projects, greenhouse agricultural shanty buildings, bridge manufacturing, ships, automobile manufacturing, machinery In many fields such as manufacturing, it has been well received in major construction projects.

 

 

Cooperation transaction

 

 

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At the same time, we also look forward to sincere cooperation with customers and friends from all over the world, mutual benefit and win-win results, and common development, and create brilliant!

 

 

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