What is Stainless Steel Z6 CNT 18-10 equivalent material?

May 06, 2026

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What is Stainless Steel Z6 CNT 18-10 material?

Stainless steel Z6 CNT 18-10 (also known as AISI 321 or 1.4541) is a titanium-stabilized austenitic stainless steel specifically designed to prevent intergranular corrosion at high temperatures. It can be fabricated into various practical product forms including plates, coils, and tubes,and is frequently utilized in applications such as pressure vessels, chemical piping systems, exhaust systems, and heat exchangers.

 

What is Stainless Steel Z6 CNT 18-10 equivalent material?

Z6 CNT 18-10 stainless steel is a French AFNOR (NF) standard grade, equivalent to titanium-stabilized AISI 321 (UNS S32100) or European Werkstoff No. 1.4541 (X6CrNiTi18-10). It is an austenitic stainless steel, and due to its excellent resistance to intergranular corrosion, it is often used in high-temperature environments and welded components (up to 800°C).

AFNOR (France) AISI/ASTM (USA) EN/DIN (Europe) JIS (Japan) GB (China)
Z6 CNT 18-10 321 1.4541 (X6CrNiTi18-10) SUS321 06Cr18Ni11Ti

 

Stainless Steel Z6 CNT 18-10 Chemical Composition 

Grade C (max) Mn (max) Si (max) P (max) S (max) Cr Ni Ti
Z6 CNT 18-10 0.08 2.00 1.00 0.045 0.030 17.0 - 19.0 9.0 - 12.0

5×C≤Ti≤0.70

 

Stainless Steel Z6 CNT 18-10 Mechanical Properties

Property Value (at Room Temp)
Tensile Strength (Rm) 515 - 700 MPa
Yield Strength (Rp0.2) ≥ 205 MPa
Elongation (A%) ≥ 40%
Hardness (Brinell HB) ≤ 201
Hardness (Rockwell B) ≤ 95

 

Stainless Steel Z6 CNT 18-10 Physical Properties 

Property Value
Density  7.92 g/cm3
Melting Point  1400 - 1427 °C
Specific Heat 500 J/kg⋅K (at 0-100°C)
Thermal Conductivity  16.1 W/m⋅K(at 100°C)
Electrical Resistivity  0.72 Ω⋅mm2/m

 

What is the maximum service temperature for Z6 CNT 18-10?

This grade is specifically designed for high-temperature service. It remains stable and oxidation-resistant in temperatures ranging from 400°C to 815°C (750°F to 1500°F), where standard 304 steel would suffer from carbide precipitation.

 

Is Z6 CNT 18-10 magnetic?

No. Like most austenitic stainless steels, Z6 CNT 18-10 is non-magnetic in the annealed condition. However, it may become slightly magnetic after cold working or welding.

 

Is Z6 CNT 18-10 easy to weld?

Yes, Z6 CNT 18-10 (also known as 1.4541 or AISI 321) is considered to have excellent weldability. It is a titanium-stabilized austenitic stainless steel, similar to 304, but specially designed to resist intergranular corrosion and withstand high temperatures.

 

Stainless Steel Z6 CNT 18-10 Applications

Heat exchanger tubes
Exhaust systems: Widely used in automotive exhaust manifolds and aircraft exhaust pipes.
Industrial furnaces and boilers: Used for furnace components, heating elements, and expansion joints.
Expansion bellows: Expansion joints and bellows suitable for operation in high-temperature environments.
Oil refining equipment: Components used to withstand high temperatures and corrosive gases.
Chemical equipment: Tanks, pipelines, and reactors used to process high-temperature corrosive substances.

 

Stainless Steel Z6 CNT 18-10 Supplier

Looking for steel plates that can withstand temperatures up to 800°C? Our Z6 CNT 18-10 (AISI 321 / 1.4541 / SUS321) stainless steel plates are the ideal heat-resistant solution. We also offer bending, punching (for perforated plates), and rolling (for tank bodies), packaged in steel frames or fumigated wooden pallets with waterproof paper and edge protection to ensure zero damage during intercontinental transport.

 

Product Form  Thickness  Width Length  Standards
321 Cold Rolled Sheet 0.3mm - 6.0mm 1000 / 1219 / 1500mm 2000 / 2438 / 3000 / 6000mm ASTM A240, EN 10088-2
321 Hot Rolled Plate 3.0mm - 100mm 1500 / 1800 / 2000 / 2500mm 6000 / 8000 / 12000mm ASTM A240, AFNOR NF A35-573
321 Steel Coil / Strip 0.3mm - 12.0mm 10mm - 2000mm Coils (Custom Weight) ASTM A240, EN 10088-2
SS 321 Checkered Plate 3.0mm - 10.0mm 1000 / 1219 / 1500mm Per Customer Request Tear Drop, Diamond Pattern

 

Get a weight quote for Z6 CNT 18-10 steel plates

321 Cold Rolled Sheet
321 Cold Rolled Sheet
321 Hot Rolled Plate
321 Hot Rolled Plate
321 Steel Coil / Strip
321 Steel Coil / Strip
SS 321 Checkered Plate
SS 321 Checkered Plate

 

Will GNEE provide a Material Certificate (MTC) for the Z6 CNT 18-10 order?

Yes. Every shipment from GNEE includes a Material Certificate (MTC) conforming to EN 10204 3.1, verifying the chemical composition (including titanium content) and mechanical properties.

Material Certificate (MTC)

 

 

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