Description
Stainless steel 1Cr18Ni9Ti is ordinary stainless steel (SUS321). Its organization category is austenitic. 1, 18, and 9 in 1Cr18Ni9Ti represent the content of carbon (‰), chromium (%), and nickel (%). It is stainless steel grade in China.
1Cr18Ni9Ti Worldwide equivalents
| Country / Region | China | Germany | Japan | France | England | USA | ISO |
| Standard | GB | DIN,WNr | JIS | AFNOR | BS | – | – |
| Grade | 1Cr18Ni9Ti | X6CrNiTi18 -10 | SUS 321 | Z10CNT18-11 | 321S20 | AISI321 | X7CrNiTi18-10 |
Chemical Composition
| C | Si | Mn | S | P | Cr | Ni | Ti | |
| % | 0.12MAX | 1.00MAX | 2.00MAX | 0.030 MAX | 0.035 MAX | 17.00-19.00 | 8.00-11.00 | 5*(C%-0.02)～0.80% |
1Cr18Ni9Ti Mechanical Properties
| Proof strength Rp0.2 (MPa) | Tensile strength Rm (MPa) | Impact energy KV (J) | Elongation at fracture A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) |
| 496 (≥) | 144 (≥) | 13 | 41 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 112 |
1Cr18Ni9Ti Mechanical Properties
Tensile strength σ b(MN/m2) ≥550
Yield strength σ s(MN/m2) ≥200
Elongation δ 5(%)〉=40
Heat treatment
1) Solid solution, 920 ~ 1150 ℃ quick cooling
2) Stabilization treatment can be carried out according to the requirements of the demander. The heat treatment temperature is 850 ~ 930 ℃
Application
1Cr18Ni9Ti is used in outdoor machines in the chemical, coal, and petroleum industries that require high grain boundary corrosion resistance. Heat-resistant parts for building materials and parts with difficult heat treatment. Such as petroleum exhaust gas combustion pipes. Engine exhaust pipes. Boiler shells. Heat exchange Heater parts. Silencer parts for diesel engines. Boiler pressure vessels. Chemical transport vehicles. Expansion joints. Spiral welded pipes for furnace pipes and dryers.
product States
| Product type | Products | Dimension | Processes | Delivery Status |
| Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling, cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-120mm*L | Forging, hot rolling,cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
| Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
| Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
