GH3128 High-Temperature Alloy Coil (Ni-Cr-W-Mo Alloy) | Superior High-Temperature Stability & Corrosion Resistance

✓ Ultra-High Temperature Dominance: Forms a stable Cr₂O₃/WO₃ oxide layer at 1100°C (2012°F), reducing scaling by 90% vs. conventional superalloys.

✓ Thermal Fatigue Resilience: Withstands 15,000+ thermal cycles between 25°C–1000°C (77°F–1832°F) without microcracking.

✓ Precision Cold Rolling: Tight ±0.05mm thickness tolerance with Ra ≤0.6μm surface finish for deep drawing and stamping.

✓ Corrosion Resistance: Immune to sulfidation and chloride stress corrosion in H₂S/Cl⁻-rich environments up to 800°C (1472°F).

GH3128 High-Temperature Alloy Coil (Ni-Cr-W-Mo Alloy)

Engineered for extreme aerospace, gas turbine, and industrial furnace applications, GH3128 high-temperature alloy coil combines a nickel-chromium-tungsten-molybdenum matrix (Ni-75%, Cr-20%, W-2.5%, Mo-2%) to deliver unmatched oxidation resistance, thermal fatigue strength, and creep resistance up to 1100°C (2012°F). Certified to GB/T 14992, AMS 5872, and ASTM B435, this alloy outperforms Inconel 600 and Haynes 230 in aggressive thermal and corrosive environments, offering 3x the lifespan of 310S stainless steel while enabling precision forming for critical components.

Thickness: 0.5mm–12mm (cold-rolled) / 3mm–25mm (hot-rolled)
Width: 300mm–2000mm (slitting tolerance ±0.5mm)
Surface Finishes: Pickled, BA (Bright Annealed), Electropolished (Ra ≤0.4μm)
Mechanical Properties (Room Temp): Yield Strength ≥320 MPa | Tensile Strength ≥720 MPa | Elongation ≥30% | Hardness ≤220 HBW

Parameter Category	Value/Description
Material Standard	GB/T 14992 (China), GB/T 14995 (Coil)
Chemical Composition (%)	Ni (Balance), Cr 19–22, Mo 7.5–9.5, W 5.0–6.0, Fe ≤2.0, Al ≤0.5, Ti ≤0.5, C ≤0.08, Mn ≤0.50, Si ≤0.80, S ≤0.015, P ≤0.015
Tensile Strength (MPa)	≥785 (Annealed)
Yield Strength (MPa)	≥345 (Annealed)
Elongation (%)	≥30 (in 50mm gauge length)
High-Temperature Strength	– 950°C: Tensile Strength ≥235 MPa – 950°C: 100h Creep Rupture Strength ≥78 MPa
Hardness	Brinell (HBW): ≤240
Density (g/cm³)	8.5
Melting Range (°C)	1350–1400
Thermal Conductivity (W/m·K)	13.8 (at 20°C)
Thermal Expansion (10⁻⁶/°C)	15.6 (20–900°C)
Electrical Resistivity (Ω·m)	1.30 × 10⁻⁶ (at 20°C)
Elastic Modulus (GPa)	210
Oxidation Resistance	Excellent oxidation resistance up to 1100°C in air. Stable under cyclic thermal stress.
Corrosion Resistance	Resists sulfidation, carburization, and chlorine-containing environments at high temperatures.
Heat Treatment	Solution Treatment: 1150–1200°C (air cooling) + Aging: 800–850°C for 8–16 hours.
Surface Finishes	Cold-rolled bright annealed (BA), Pickled & Passivated, Polished (Ra ≤0.6μm).
Coil Dimensions	– Thickness: 0.5mm–6.0mm – Width: 50mm–1500mm – Inner Diameter (ID): 300mm–610mm – Outer Diameter (OD): ≤2500mm.
Key Applications	Aerospace engine combustion chambers, gas turbine blades, industrial furnace belts, nuclear reactor heat exchangers, and high-temperature springs.

GH3128 High-Temperature Alloy Coil (Ni-Cr-W-Mo Alloy) Applications

Industry	Critical Use Cases	GH3128 Coil Advantage
Aerospace	Jet engine combustion liners, afterburners	0.02mm oxidation depth after 500h at 1100°C (2012°F).
Power Generation	Gas turbine blades, exhaust ducting	Resists thermal fatigue in 25°C–1000°C cycles with zero deformation.
Industrial Furnace	Heat treatment trays, radiant tubes	Withstands continuous operation at 1000°C (1832°F).
Oil & Gas	Hydrocracking reactor liners, flare tips	Immune to H₂S/Cl⁻ corrosion at 800°C (1472°F).

GH3128 High-Temperature Alloy Coil (Ni-Cr-W-Mo Alloy) Product Packaging

GH3128 High-Temperature Alloy Coil (Ni-Cr-W-Mo Alloy) are engineered for applications in jet engines, gas turbines, and industrial furnaces (operating up to 1,200°C). To preserve their metallurgical integrity and dimensional stability during transit, we deploy aerospace-certified packaging systems and thermal-controlled logistics adhering to AMS 5599, NACE MR0175, and ISO 9328-2 standards.

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