JIS G3459 SUS 890 LTP Introduce
JIS G3459 SUS 890 LTP is used in a wide variety of industries and applications, including water treatment and industrial process piping, structural and architectural pipes, automotive and marine pipes, sanitary piping, and medical equipment. Its versatility and technical advantages have made it one of the most widely used steel pipe standards in the world. JIS G3459 SUS 890 LTP is divided into three parts, depending on the grades of stainless steel used: stainless steel grades, tubing manufacturing method and operational requirements. Each grade of stainless steel is divided into two categories, depending on their chemical composition and mechanical properties: austenitic stainless steel, and ferritic and martensitic stainless steel.
Smelting temperature:1435°C - 1887°C
Application:stainless steel pipe
JIS G3459 SUS 890 LTP Material Chemical Composition
The chemical composition of the JIS G3459 SUS 890 LTP steel are as follows:
| Element | Min | Max |
|---|---|---|
| Silicon (Si) | - | 1.0000 |
| Sulfur (S) | - | 0.0300 |
| PhOsphorus (P) | - | 0.0450 |
| Nickel (Ni) | 23.0000 | 28.0000 |
| Molybdenum (Mo) | 4.0000 | 5.0000 |
| Manganese (Mn) | - | 2.0000 |
| Copper (Cu) | 1.0000 | 2.0000 |
| Chromium (Cr) | 19.0000 | 23.0000 |
| Carbon (C) | - | 0.0200 |
JIS G3459 SUS 890 LTP Material Mechanical Properties
The mechanical properties of the JIS G3459 SUS 890 LTP steel are as follows:
| YieldRp0.2 | ≤ 463 (MPa) |
| TeileRm | ≤ 667 (MPa) |
| ImpactKV/Ku | 23(J) |
| ElongationA | 13% |
| Reduction in cross section on fractureZ | 24% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 221 |
JIS G3459 SUS 890 LTP Material Thermal Properties
The thermal performance parameters of the JIS G3459 SUS 890 LTP steel are as follows:
| Temperature (°C) | 33 | 929 | 629 |
| Modulus of elasticity (GPa) | - | 976 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 42 |
| Thermal conductivity (W/m·°C) | - | 11.3 | 23.2 |
| Specific thermal capacity (J/kg·°C) | - | 112 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.22 | - | - |
| Deity (kg/dm³) | - | - | 424 |
| Poisson’s coefficient, ν | - | - | 323 |