• X6CrNiNb18-10
  • X6CrNiNb18-10
  • X6CrNiNb18-10
  • X6CrNiNb18-10


X6CrNiNb18-10 is a type of stainless steel that is also known as 1.4550. It is an austenitic stainless steel with high corrosion resistance and excellent mechanical properties. These are also known for its excellent resistance to high temperatures, oxidation, and corrosion. Other designation for this material includes:

  • SUS347
  • S34778
  • UNS S34700
  • Alloy 347
  • 4450

Professional X6CrNiNb18-10 Stainless Steel Manufacturer in China – TuoLian

TuoLian offers X6CrNiNb18-10 which is a stabilized austenitic stainless steel. Meaning that it contains both chromium and nickel, as well as niobium. The niobium addition is what stabilizes the steel and makes it resistant to intergranular corrosion.  The “X” in the name indicates that it is a high alloy steel, while “6” indicates that it contains at least 6% chromium.

As a professional manufacturer, we supply X6CrNiNb18-10 in different sizes, shapes, dimensions, treatments, and finishing. You can also request for customization based on your specific requirements. Whether you need X6CrNiNb18-10 for your business or fabrication projects, choose TuoLian as your supplier. Send us your inquiries today

X6CrNiNb18-10 Stainless Steel for a Variety of Applications

Our X6CrNiNb18-10 is a versatile austenitic stainless steel with several applications due to its excellent mechanical, thermal, and chemical properties. Here are some of its applications:

  • Petrochemical and Chemical Industry
  • Boiler tubes
  • Heat exchanger tubes
  • Radiant superheaters
  • Exhaust systems
  • Construction
  • Power plant
  • Power generation
  • Plant Manufacturing
  • Nuclear, and more

Chemical Composition

C (max.) Si (max) Mn (max.) Ni (max.) P (max.) S (max.) Cr (max.) Nb (max.)
0.08% 1% 2% 9 to 12% 0.045% 0.015% 17 to 19% 1%

Physical and Mechanical Properties

Tensile Strength


Yield Point


Hardness (HB) Modulus Elasticity






Thermal Capacity


Thermal Conductivity Supersaturation


510 to 740 ≥205 ≤230 200 ≥40 7.90 500 15 1020 to1100


Properties at a High Temperature

Properties Temperature (⁰C)
100 200 300 400 500
Coefficient of Linear Expansion 10-6∙K-1 16.0 16.5 17.0 17.5 18.0
Yield Point Mpa ≥175 ≥155 ≥136 ≥125 ≥119
Modulus Elasticity Gpa 194 186 179 172 165


Related Products

  • X6CR17 Stainless Steel
    X6CR17 Stainless Steel
  • X17CrNi16-2
  • X6Cr13 Stainless Steel
    X6Cr13 stainless steel
  • X6CrNiMoTi17-12-2
  • X5CrNi18-10 Stainless Steel
    X5CrNi18-10 stainless steel

Different Characteristics

Our X6CrNiNb18-10 stainless steels are characterized by the following:

  • High strength
  • Heat resistance
  • High ductility
  • Weldability
  • Easy to form
  • Cold worked or hot worked

Extensive X6CrNiNb18-10 Selection We Provide

As a reliable manufacturer, we produce different X6CrNiNb18-10 types such as:

  • Rolled bars
  • Seamless tubes
  • Forgings
  • Cold-rolled sheets
  • Burned sheet elements
  • Hot-rolled sheets

Corrosion Resistance

The material’s corrosion resistance is mainly due to its high chromium and nickel content. X6CrNiNb18-10 also has excellent resistance to pitting and crevice corrosion, which are common forms of localized corrosion that occur in the presence of chlorides, halides, and other aggressive chemicals.

Send Your Inquiry Now

One Stop Stainless Steel Supply.

Whether you need stainless steel materials for your business or fabrication projects, TuoLian is your best supplier. You can find all types, grades, and thicknesses based on your needs. Guaranteed that we provide the best quality at a reasonable cost.
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