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| Low Grade | X23H18 ЭИ417 |
| Standard | GOST 5632-1972 High-alloy Steels And Corrosion-proof, Heat-resisting And High-temperature Alloys Grades |
| Classified | Austenitic stainless steel |
| Property | Anti-corrosion |
| Tag | Austenitic stainless steel |
20X23H18 Chemical element(%)
| Element | C | Si | Mn | P | S | Cr | Ni | Cu * | Mo * | Ti * | W * |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | – | – | – | – | – | 22 | 17 | – | – | – | – |
| Max | 0.2 | 1 | 2 | 0.035 | 0.02 | 25 | 20 | 0.3 | 0.3 | 0.2 | 0.2 |
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
20X23H18 steel chemical information,mechanical properties, physical properties, mechanical properties,
heat treatment, and Micro structure, We can produce round bars, forged rings, forged cakes, flat bars,
tubes, sheets, plates, steel wires, steel strips, steel coils, etc.
20X23H18 – Specification & Application
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
Chemical composition(wt.%) of 20X23H18 grade:
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | – | 0.20 | ||
| Si | – | 1.00 | ||
| Mn | – | 2.00 | ||
| P | – | 0.035 | ||
| S | – | 0.020 | ||
| Cr | 22.00 | 25.00 | ||
| Ni | 17.00 | 20.00 | ||
| Mo | – | 0.30 | ||
| W | – | 0.20 | ||
| Ti | – | 0.20 |
20X23H18 – Detail
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
Mechanical properties of grade 20X23H18
| 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) |
|---|---|---|---|---|---|---|
| 267 (≥) | 324 (≥) | 23 | 14 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 241 |
Physical properties of grade 20X23H18
| Property | Density kg/dm3 | Temperature T °C/F | Specific heat J / kgK | Thermal conductivity W/mK | Electric resistance µΩ·cm | Modulus of elasticity kN/mm2 | Expansion rate |
|---|---|---|---|---|---|---|---|
| 948 (≥) | 323 (≥) | 13 | 31 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 422 | |
| Temp. °C/°F | Creep strain limit (10000h) (Rp1,0) N/mm2 | Creep rupture strength (10000h) (Rp1,0) N/mm2 | |||||
| 786 | 578 | 654 |
Equivalent Grade
SAE 310S stainless steel
SAE 310S stainless steel is the low carbon version of 310 and is suggested for applications where sensitisation, and subsequent corrosion by high temperature gases or condensates during shutdown may pose a problem.
SAE 310 stainless steel is a highly alloyed austenitic stainless steel used for high temperature application. The high chromium and nickel content give the steel excellent oxidation resistance as well as high strength at high temperature. This grade is also very ductile, and has good weldability enabling its widespread usage in many applications.
310/310S find wide application in all high-temperature environments where scaling and corrosion resistance, as well as high temperature strength and good creep resistance are required.
Chemical composition
| SAE | C | Mn | P | S | Si | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 310 | 0.24 max | 2.0 max | 0.045 max | 0.030 max | 1.5 max | 24.0–26.0 | 19.0–22.0 |
| 310S | 0.08 max |
