GOST 12X18H10T Plate,12X18H10T Sheet,ASTM A240 321 Sheet
12X18H10T plate/Sheet is an excellent choice for applications where temperature approximately 900° C required.
| Grade : | 12KH18N10T ( 12Х18Н10Т ) ( Х18Н10Т ) |
| Substitute: | 08Х18Г8Н2Т, 10Х14Г14Н4Т, 12Х17Г9АН4, 08Х22Н6Т, 08Х17Т, 15Х25Т, 12Х18Н9Т |
| Classification : | Сryogenic structural steel |
12X18H10T Sheet Dimension Ranges:
Width: 600mm~2030 mm
Thickness: 0.1~120.0 mm
Length: 300~6000 mm , Max 18000 mm
Surface Finish: No.1, 2B, BA, No.3, No.4, No.5, No.8, HL, Etching, SB, Ti-coating,color-coating ,embossing
| C | Si | Mn | Ni | S | P | Cr | Cu | – |
| max 0.12 | max 0.8 | max 2 | 9 – 11 | max 0.02 | max 0.035 | 17 – 19 | max 0.3 | (5 С – 0.8) Ti, остальное Fe |
Mechanical properties of grade 12X18H10T Plate
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| – | mm | – | MPa | MPa | % | % | kJ / m2 | – |
| Pipe cooling strain, GOST 9941-81 | 549 | 35 | ||||||
| Pipe hot strain, GOST 9940-81 | 529 | 40 | ||||||
| Bar, GOST 5949-75 | to Ø 60 | 510 | 196 | 40 | 55 | Guenching 1020 – 1100oC,Cooling air, | ||
| Wire, GOST 18143-72 | 540-830 | 20-25 | ||||||
| Forging, GOST 25054-81 | to 1000 | 510 | 196 | 35-38 | 40-52 | Guenching 1050 – 1100oC, water, | ||
| Sheet trick, GOST 7350-77 | 530 | 235 | 38 | Guenching 1000 – 1080oC,Cooling water, | ||||
| Sheet thin, GOST 5582-75 | 530 | 205 | 40 | Guenching 1050 – 1080oC,Cooling water, | ||||
| Sheet thin cold-worked , GOST 5582-75 | 880-1080 | 10 | ||||||
| Sheet thin, GOST 5582-75 | 740 | 25 |
ASTM A240 321 Plate,Stainless Steel 321 is the stabilized version of Stainless Steel 304. The 18/8 blend of chromium and nickel is tempered with titanium to give type 321 protection from intergranular corrosion that can occur after heat treatment. It is protected from temperatures ranging from 800 to 1500° F. The metal displays high strength and resistance to various forms of corrosions, including that from aqueous environments. Type 321 finds application in heavy welding components, along with dynamic environments that are subject to changes.
However, the addition of titanium limits the application of 321 in terms of working. The metal is not recommended for certain welding techniques as it is not consumable. Beyond this, stainless steel 321 has excellent forming characteristics, does not require annealing after being welded, and displays toughness in a range of temperatures. The metal shows strength even when exposed to cryogenic temperatures. Additionally, it is often chosen over Type 304 for its increased resistance to creep and rupture. Both metals may be susceptible to stress corrosion cracking.
Stainless Steel 321H is the higher-carbon modification of stainless steel 321. In addition, 321H is stabilized by an addition of niobium to resist intergranular corrosion. It is also able to withstand higher temperatures than type 321, due to its elevated carbon levels. While 321H displays the same welding and forming characteristics of type 321, the metal cannot be hardened by heat treatment. It is utilized in situations where type 321 cannot withstand the high temperatures, typically those exceeding 1000° F. Type 321H displays better resistance against creep than both 321 and 304 stainless steels.
321H also shows resistance against acid corrosion in a variety of environments. Lower temperatures provide better resistance, but the metal is able to withstand up to a 10% acid solution, that has been diluted, at elevated temperatures. However, the metal shows very little resistance against chlorine or sulfuric solutions at any given temperature.
Given their similar composition and characteristics, it is possible for stainless steels 321 and 321H to become dually certified.
Equivalents of steel grade 12H18N10Т(12Х18Н10Т)
| USA | 321, 321H, S32100, S32109 |
| Japan | SUS321 |
| European Union | 1.4541, 1.4878, X10CrNiTi18-10, X6CrNiTi18-10KT |
| China | 0Cr18Ni10Ti, 0Cr18Ni11Ti, 0Cr18Ni9Ti, 1Cr18Ni11Ti, H0Cr20Ni10Ti |
| Australia | 321 |
| South Korea | STS321, STS321TKA, STSF321 |
Application:
Steel 12H18N10Т (12Х18Н10Т)is used to make welded vessels for various industrial applications, and exhaust systems.
Welding
Steel 12H18N10Т(12Х18Н10Т) has good weldability for manual and automatic welding. Wire of Sv-08H19N10B, Sv-04H22N10BT, Sv-05H20N9FBS and Sv-06H21N7BТ types is used for standard automatic welding with fluxes АN-26, АN-18 and for argon arc welding, and electrodes EА-1F2 type GL-2 are used for manual welding.
