Aisi 321/12Х18Н10Т Seamless hot defformed tubes
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12X18H10T seamless stainless steel pipes comply with GOST 9941-81. GNEE supplies AISI 321/12X18H10T pipes made from corrosion-resistant steel through hot and cold deformation processes. They are formed from hot billets without welds. Made from titanium-stabilized austenitic stainless steel, they resist intergranular corrosion that can occur when heated, making them ideal for high-temperature applications. Their key properties include exceptional strength, excellent oxidation resistance and resistance to a wide range of chemicals, as well as robust mechanical properties, making them suitable for industries such as aerospace, chemical processing, and power generation.
AISI 321/12X18H10T seamless pipes have an outer diameter range of 5-273 mm and a wall thickness range of 2 to 22 mm. For seamless pipes, outer diameters range from 1/4 inch to 30 inches, and wall thicknesses range from SCH 5 to SCH 180. All pipes are manufactured and tested in strict accordance with GOST 9941-81.
12XH18N10T (GOST ) Equivalents
| EU EN |
USA – |
Germany DIN, WNr |
Japan JIS |
England BS |
China GB |
GOST |
|---|---|---|---|---|---|---|
| X6CrNiTi18-10 (1.4541) | 321 | X10CrNiTi18-9 X6CrNiTi18-10 |
SUS321 | 321S31 | 0Cr18Ni10Ti 1Cr18Ni11Ti H0Cr20Ni10Ti |
08KH18N10T 08KH18N12T 12XH18N10T |
AISI 321/12X18H10T seamless pipes Specifications
| Standard | GOST9941-81 |
|---|---|
| Stainless Steel | 12X18H10T |
| ASTM | 304, 304L, 304H, 304N, 310S, 316,T 316L, 316Ti, 316H, 317,TP317L, 321, 321H, 347, 347H, 904L |
| Kazakhstan material | 08Х17Т, 08Х13, 12Х13, 12Х17, 15Х25Т, 04Х18Н10, 08Х20Н14С2, 08Х18Н12Б, 10Х17Н13М2Т, 10Х23Н18, 08Х18Н10, 08Х18Н10Т, 08Х18Н12Т, 08Х17Н15М3Т, 12Х18Н10Т, 12Х18Н12Т, 12Х18Н9, 17Х18Н9, 08Х22Н6Т, 06ХН28МДТ |
| Tube Type | Cold rolled & cold drawn Seamless Tube |
| Finishes | Annealing Pickling Bright Annealing |
| Outside Diameter | 6 – 610 mm |
| Thickness | 0.5 – 30 mm |
| Length | Fixed And Random Length |
12Х18Н10Т Chemical Composition (%)
| C | Si | Mn | P | S | Cr | Ni | Cu * | Mo * | Ti * | W * | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | – | – | – | – | – | 17 | 9 | – | – | – | – |
| Max | 0.12 | 0.8 | 2 | 0.035 | 0.02 | 19 | 11 | 0.3 | 0.5 | 0.8 | 0.2 |
Mechanical Properties
| Steel grade | Point of maximum load δВ, N/mm2 (kgf/mm2) | Elongation δ5, % | Density ρ, g/cm3 |
|---|---|---|---|
| No less than | |||
| 12Х18Н10Т | 549 (56) | 35 | 7.95 |
Application 1. General service2. Curatorial Industry3. Food Industry4. Ornamental5. Aerospace Industry6. Petrochemical7. Fluid transport8. Nuclear Industry9. Boiler heat- exchanger10. Oil and gas service
Heat treatment
The tubes are normally delivered as described above. If additional heat treatment is needed aer further
processing the following is recommended.
Solution annealing
Tp 321:1040-1100°C (1905-2010°F), 2-5 min, rapid cooling in air or water.
Tp321H:Stabilisation treatment: 1040-1100°C (1920-2010°F), 2-5 min rapid cooling in air or water. However, annealing above 1100°C (2010°F) may be required in order to meet grain size requirements. This treatment should be followed by astabilisation treatment.
Stress relieving:850-950°C (1560-1740°F), 10-15 minutes, cooling in air.
GNEE has nearly 18 years of experience in seamless stainless steel tube production. Every tube undergoes dimensional, surface, PMI, eddy current, and hydrostatic tests. Only high-quality tubes are packaged and delivered to customers worldwide. Our tube offerings cover both imperial and metric sizes, with outer diameters ranging from 1.58 mm to 108 mm. Special sizes are also available upon request. Grades: 304/304L, 304H, 316/316L, 316H, 317L, 321, 310S (2520), 347H, S31803/S32205, S32750, S32760, S32304, 904L
Specifications: ASTM A213, A270, A789, A790, GB/T13296, DIN17458, EN10216-5
Outer Diameter Range: 1.58mm – 108mm
Thickness: 0.38mm – 5.18mm
Length: Maximum 25mm (U-bend compatible)
Surface Treatment: A&P, BA, EP
Email: info@gneestainless.com
