GH5188 Powder

GH5188 is a W-strengthened diamond-based high-temperature alloy. GH5188 has good mechanical properties and excellent high temperature oxidation resistance. It is suitable for aviation parts that require tensile strength below 980°C and oxidation resistance below 1100°C.

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Table of Contents

GH5188 is a W-strengthened diamond-based high-temperature alloy. GH5188 has good mechanical properties and excellent high temperature oxidation resistance. It is suitable for aviation parts that require tensile strength below 980°C and oxidation resistance below 1100°C.

Physical Properties

Size range
Size distribution
Hall flow rate
Bulk density
Tap density
D10(μm) D50(μm) D90(μm)
15-53μm 17-22 32-38 52-58 ≤18s/50g ≥4.80g/cm³ ≥5.40g/cm³

Heat Treatment Recommendations

Solid solution treatment:1180±20°C/1h/AC

Mechanical Behavior

Test temperature Tensile strength (σb/Mpa) Yield strength (σp0.2/Mpa)
Elongation (δ5/%)
25℃ 900 400 ≥45
650℃ 650 280 ≥50
900℃ 300 240 ≥50
950℃ 200 170 ≥50
1000℃ 160 130 ≥50

Chemical Composition Range (Wt,-%)

Element C Cr Ni Co W Fe
wt% 0.05-0.15 20.00-24.00 20.00-24.00 Bal 13.00-16.00 ≤3.00
Element B La Mn Si P S
wt% ≤0.015 0.03-0.12 ≤1.25 0.20-0.50 ≤0.02 ≤0.015
Element Cu O N
wt% ≤0.07 ≤0.025 ≤0.015