AMS 5589 GH4169 Seamless Tubes For Gas Turbine

Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of ams 5589 gh4169 seamless tubes for gas turbine in China. If you're going to wholesale high quality ams 5589 gh4169 seamless tubes for gas turbine made in China, welcome to get free sample from our factory. Good service and reasonable price are available.

 

From land-based gas turbines to advanced marine propulsion systems, our Gnee Steel AMS 5589 GH4169 seamless steel tubing provides the critical thermal stability required for long-cycle operation. We understand that downtime is unacceptable in power generation. Therefore, our tubing undergoes rigorous manufacturing processes to withstand thousands of start-stop cycles without structural degradation.

Click to get bulk pricing for GH4169 gas turbine tubes

 

 

Request a GH4169 pipe price quote

 

 

Parameter	Description
Specification	AMS 5589 (Aerospace Material Specification)
Material	GH4169 (UNS N07718 / Inconel 718)
Product Form	Seamless Cold Worked Tube
Application	Gas Turbine Engines (combustor liners, bleed air systems, fuel manifolds, cooling lines)
Design Requirements	High temperature strength, oxidation resistance, thermal fatigue resistance, creep strength
Applicable Standards	AMS 5589, AMS 5590, ASTM B983, ASME SB983

Note: AMS 5589 is the primary aerospace specification for Inconel 718 seamless tubing used in gas turbine and high-temperature aircraft applications. The material is produced by vacuum induction melting (VIM) followed by vacuum arc remelting (VAR).

 

 

AMS 5589 GH4169 Tubes Chemical Composition

Ni	Cr	Nb+Ta	Mo	Ti	Al	Cu	Fe
50.0-55.0	17.0-21.0	4.75-5.50	2.80-3.30	0.65-1.15	0.20-0.80	≤ 0.3	Bal.

 

Mechanical properties of GH4169 gas turbine tubes

Test Condition	Tensile Rm (MPa)	Yield Rp0.2 (MPa)	Elongation A5 (%)	Reduction of Area (%)
High Temp (650°C)	≥ 1000	≥ 850	≥ 15	≥ 20

Click to download the GH4169 alloy PDF file now

 

 

OD (in)	OD (mm)	Wall (in)	Wall (mm)	Weight (lb/ft)	Weight (kg/m)	Typical Gas Turbine Application
0.125	3.18	0.016	0.41	0.013	0.019	Instrumentation, small cooling lines
0.125	3.18	0.020	0.51	0.016	0.024	High-pressure instrumentation
0.188	4.78	0.020	0.51	0.025	0.037	Control lines, low-flow cooling
0.188	4.78	0.028	0.71	0.034	0.051	Bleed air sensing, general cooling
0.188	4.78	0.035	0.89	0.042	0.063	High-pressure cooling lines
0.250	6.35	0.020	0.51	0.034	0.051	Fuel return, balance lines
0.250	6.35	0.028	0.71	0.047	0.070	Fuel supply, general cooling
0.250	6.35	0.035	0.89	0.058	0.086	Main cooling air, fuel manifolds
0.250	6.35	0.049	1.24	0.079	0.118	High-pressure air supply
0.313	7.95	0.028	0.71	0.060	0.089	Combustor cooling lines
0.313	7.95	0.035	0.89	0.074	0.110	Turbine cooling supply
0.313	7.95	0.049	1.24	0.102	0.152	High-flow cooling manifolds
0.375	9.53	0.028	0.71	0.073	0.109	Main bleed air lines
0.375	9.53	0.035	0.89	0.090	0.134	Turbine cooling supply
0.375	9.53	0.042	1.07	0.107	0.159	High-pressure cooling mains
0.375	9.53	0.049	1.24	0.124	0.185	Extreme pressure cooling
0.500	12.70	0.035	0.89	0.122	0.182	Main cooling air manifolds
0.500	12.70	0.049	1.24	0.168	0.250	High-volume cooling supply
0.500	12.70	0.065	1.65	0.218	0.324	Main bleed air headers
0.625	15.88	0.035	0.89	0.154	0.229	Large cooling ducts
0.625	15.88	0.049	1.24	0.213	0.317	Combustor case cooling
0.625	15.88	0.065	1.65	0.278	0.414	High-volume main supply
0.750	19.05	0.049	1.24	0.258	0.384	Main cooling air headers
0.750	19.05	0.065	1.65	0.337	0.502	Large engine cooling mains
0.750	19.05	0.083	2.11	0.422	0.628	Heavy-duty cooling systems
1.000	25.40	0.065	1.65	0.458	0.681	Main engine air supply
1.000	25.40	0.083	2.11	0.578	0.860	High-volume air distribution

 

GH4169 is the most commonly used gas turbine tube size

Rank	OD (in)	OD (mm)	Wall (in)	Wall (mm)	Usage Frequency	Typical Application Area
1	0.250	6.35	0.035	0.89	Very High	Bleed air, cooling, fuel manifolds
2	0.188	4.78	0.028	0.71	Very High	Sensing lines, control cooling
3	0.375	9.53	0.035	0.89	High	Turbine cooling, bleed air mains
4	0.250	6.35	0.028	0.71	High	Fuel supply, general cooling
5	0.500	12.70	0.049	1.24	Medium	Main cooling air manifolds
6	0.313	7.95	0.035	0.89	Medium	Combustor cooling, turbine supply
7	0.125	3.18	0.020	0.51	Medium	Instrumentation, small cooling
8	0.188	4.78	0.020	0.51	Medium	Low-flow cooling, return lines
9	0.500	12.70	0.035	0.89	Medium	Main cooling air, large manifolds
10	0.375	9.53	0.042	1.07	Low	High-pressure cooling mains

 

GH4169 Tube Size Guide for Gas Turbine Applications

Application Area	Recommended OD (in)	Recommended Wall (in)	Operating Temp (°C)	Pressure (psi)
Cooling Air Lines (Low Flow)	0.125 – 0.188	0.016 – 0.020	300-500	200-500
Cooling Air Lines (General)	0.188 – 0.250	0.020 – 0.028	400-600	500-1,000
Cooling Air Lines (High Flow)	0.250 – 0.375	0.028 – 0.035	500-700	1,000-2,000
Main Cooling Manifolds	0.500 – 0.750	0.049 – 0.065	500-650	500-1,500
Bleed Air Lines (Low Pressure)	0.250 – 0.375	0.028 – 0.035	400-600	200-500
Bleed Air Lines (High Pressure)	0.313 – 0.500	0.035 – 0.049	500-650	500-1,500
Main Bleed Air Headers	0.500 – 1.000	0.049 – 0.083	500-650	300-800
Fuel Manifolds	0.188 – 0.313	0.028 – 0.035	50-150	500-3,000
Fuel Supply Lines	0.250 – 0.500	0.028 – 0.049	50-150	500-5,000
Combustor Cooling	0.250 – 0.375	0.035 – 0.049	600-700	1,000-2,000
Turbine Cooling Supply	0.313 – 0.500	0.035 – 0.049	500-650	500-1,500
Instrumentation / Sensing	0.125 – 0.188	0.016 – 0.020	300-600	100-500
Control Lines (Hydraulic/Pneumatic)	0.188 – 0.250	0.020 – 0.028	100-300	1,000-3,000
Case Cooling Lines	0.375 – 0.625	0.035 – 0.049	400-600	300-800

Contact us to customize GH4169 products to fit your project dimensions

 

 

Even in land-based gas turbines, the fuel system is the most critical component. GH4169's superior performance is reflected in the following aspects:

Anti-coking performance: Its smooth inner wall and high-temperature stability prevent fuel from coking within the piping, ensuring stable burner performance.

Pressure pulsation stability: GH4169 maintains its elastic modulus under high-frequency pressure waves, preventing fatigue failure caused by vibration.

Weld joint integrity: Its excellent resistance to strain-aging cracking makes it an ideal choice for the complex welded manifolds of gas turbine combustors.

 

 

Gas turbine: Internal fuel piping, cooling air piping, and high-strength fasteners.

Steam turbine: High-pressure steam delivery piping and heat exchanger piping.

Marine propulsion: Exhaust system and fuel injection piping for high-performance ship engines.

Nuclear power: Core structural components and instrumentation piping.

 

 

Gnee Alloy as a trusted supplier, Gnee Alloy adheres to a "zero-defect" principle. Every GH4169 seamless pipe undergoes a rigorous inspection process before shipment.

Test Method	Requirement	Standard	Acceptance Criteria
Ultrasonic Testing (UT)	100% (for wall ≥ 0.5mm)	ASTM E213	No defects exceeding 5% wall
Eddy Current Testing (ET)	100% (for thin wall)	ASTM E426	No relevant indications
Hydrostatic Test	100%	ASME Section VIII	1.5× working pressure, no leakage
Pneumatic Test	As specified	–	For clean gas service
Visual Inspection	100%	ASTM E543	No surface defects

 

GNEE Group GH4169 superalloy Packaging

Contact us to choose your preferred packaging and shipping method

 

 

Stable Metallurgical Properties: Our VIM + ESR dual-melting process ensures a uniform microstructure, resulting in high fatigue life and creep rupture resistance.

Supply Chain Security: We offer price-locking solutions and annual supply agreements to help you manage material cost fluctuations in long-term projects.

Professional Logistics Services: We have extensive experience shipping high-value alloy batches to Russia, Southeast Asia, and the Middle East, and provide comprehensive customs clearance and compliance support.

 GH4169 certificate

 

Q: Do you offer long-term supply contracts for OEMs?
A: Yes. We specialize in supporting large-scale projects through annual supply agreements. We offer price-lock options to protect our clients from raw material (Nickel/Niobium) price volatility, ensuring stable project budgeting.

 

Q: Are your tubes compatible with high-temperature steam environments?
A: Absolutely. GH4169 (Inconel 718) provides excellent resistance to steam, high-purity water, and various industrial gases, even in the presence of chlorides, making it superior to 300-series stainless steels.

 

Q: Can you provide oversized tubes for heavy-duty turbine casings?
A: Yes, we have the capability to produce seamless pipes up to 219mm OD with wall thicknesses up to 25mm, meeting the needs of heavy structural energy components.

Hot Tags: ams 5589 gh4169 seamless tubes for gas turbine, China ams 5589 gh4169 seamless tubes for gas turbine suppliers, component alloy, corrosion resistant alloy, heat resistant alloy, reliable alloy, tool alloy, tough alloy