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Golden Steel Material is a premier ISO-certified stockist based in Al Jubail. We supply high-performance pipes, fittings, valves, and flanges to the Oil & Gas and Industrial sectors across Saudi Arabia and the GCC.

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info@gtesaudi.com
+966 54 662 1439
Al Jubail 35526, Saudi Arabia

Inconel 740 Tubes

Sizes: 1/8" OD to 8" OD (3.18mm to 203.2mm)

WT (Thickness): 0.5mm to 12mm (Sch 5S to Sch 160)

Type: Seamless, Cold Drawn (High Precision)

Standard: ASME Code Case 2702, ASTM B163/B444

Length: Standard 6m, Cut-to-Length, Precision

Surface Finish: Solution Annealed, Age-Hardened

Ends: Plain Ends, Beveled Ends

Origin: Global Stock: USA, Germany, Japan

goldenislands.com.sa

Golden Steel Material is a specialized Inconel 740H Tubes Supplier in Saudi Arabia, providing high-performance, precipitation-hardened nickel-based alloys designed for the next generation of high-efficiency power generation. Inconel 740H (UNS N07740) is the leading material solution for Advanced Ultra-Supercritical (A-USC) power plants, offering a unique combination of exceptional creep strength and resistance to both steam-side oxidation and coal-ash corrosion at service temperatures up to 760°C. By enabling higher steam temperatures and pressures, 740H tubes directly contribute to increased thermal efficiency and lower fuel consumption in modern boiler systems.

As a specialized Inconel 740H seamless tube stockist, we supply tubing that meets the rigorous requirements of ASME Code Case 2702, ensuring compliance for pressure-retaining components in the most demanding boiler environments. Inconel 740H maintains structural stability over extremely long service lives, significantly reducing the frequency of maintenance shutdowns caused by tube creep or oxidation. This makes it an indispensable asset for superheater and reheater piping, high-pressure turbine components, and advanced waste-to-energy recovery units throughout the Kingdom’s industrial hubs of Jubail and Yanbu.

We serve as a trusted Inconel 740H Tubes exporter in Saudi Arabia, ensuring that our supply chain is optimized for the complex procurement needs of SEC (Saudi Electricity Company) and major independent power producers (IPPs). Every order is supported by MTC EN 10204 3.1 certification, with full traceability and rigorous PMI and hydrostatic testing to verify material integrity. Whether you are performing a strategic boiler modernization project, handling an emergency shutdown, or designing high-efficiency thermal infrastructure, our technical team provides the precision-grade alloys required to meet the world’s most stringent energy standards.

Inconel 740 Tubes Features

» Superior Creep-Rupture Strength: Engineered for long-term structural stability at temperatures up to 760°C. It offers a significant improvement in creep life compared to standard superalloys, ensuring the safety and longevity of high-pressure boiler components.
» Excellent Steam-Side Oxidation Resistance: Specifically formulated to resist internal scaling in high-pressure steam environments. This prevents the "insulation" effect of oxide build-up, maintaining optimal heat transfer efficiency across the tube wall throughout its service life.
» ASME Code Case 2702 Compliance: Fully approved for pressure-retaining components under ASME standards. This provides the legal and technical foundation required by engineering firms and utility providers (like SEC) for A-USC boiler construction.
» Resistance to Coal-Ash Corrosion: Features high immunity to the aggressive hot corrosion caused by coal-ash constituents (sulfates and vanadates), making it suitable for both traditional and waste-to-energy recovery boiler applications.
» Precipitation-Hardened Stability: Utilizes a sophisticated precipitation-hardening mechanism that retains high strength even after thousands of hours of operation at elevated temperatures, preventing the "softening" that occurs in non-aging alloys.
» Enhanced Weldability: Despite its advanced mechanical properties, 740H is designed to be weldable with standard gas tungsten arc welding (GTAW) techniques, facilitating complex onsite boiler construction and tube-to-header repairs.
» Microstructural Stability: Formulated to resist the formation of deleterious secondary phases (like Sigma phase) during long-term aging, ensuring the material does not become brittle during operation—a critical safety feature for thermal power infrastructure.
» Rigorous Quality Traceability: Every tube is supplied with full material traceability and MTC 3.1 certification, satisfying the stringent audit requirements for critical path power plant components in Jubail and Yanbu.

Approved Inconel 740 Tubes Supplier in Saudi Arabia

Inconel 740 Seamless Tube Supplier

Inconel 740 Welded Tube

Inconel 740 Tubing Bends

Inconel 740 Tubes Specification

Product Identity

Alloy: Inconel 740H
UNS: N07740
Standards: ASME Code Case 2702
Application: A-USC Boiler Tubes

Nickel Content (Ni)

Requirement: Balance (approx. 48-50%)
Technical Role: Ensures a stable austenitic matrix for high-temperature metallurgical stability.

Chromium (Cr) Composition

Requirement: 24.0% – 26.0%
Technical Role: Critical for high oxidation resistance and coal-ash corrosion immunity.

Cobalt (Co) Addition

Requirement: 15.0% – 25.0%
Significance: A signature element for 740H; increases high-temperature creep strength significantly.

Niobium (Nb)

Requirement: 1.0% – 2.5%
Significance: Essential for Gamma-Prime precipitation hardening to achieve peak mechanical strength.

Molybdenum (Mo)

Requirement: 0.3% – 2.5%
Significance: Provides solid-solution strengthening to the base alloy matrix.

Size Availability

OD Range: 1/8" to 8" (3.18mm to 203.2mm)
Wall Thickness: 0.5mm to 12mm
Forms: Seamless, Cold Drawn

Schedule Range

Standard: Sch 40S, 80S, 160
Duty: High-pressure superheater and reheater coils.

Creep Strength

Requirement: Optimized for >100,000 hours at 700°C.
Performance: Superior to T91/T92 and 347H stainless steels.

Steam-Side Oxidation

Property: High resistance to internal scaling.
Advantage: Maintains consistent heat-transfer rates for boiler efficiency.

Physical Properties

Density: 8.08 g/cm³
Melting Range: 1320°C – 1370°C
Duty: High-heat structural boiler service.

Weldability

Methods: TIG, MIG, GTAW.
Requirement: Excellent weldability; suitable for onsite header-to-tube connections.

Surface Condition

Condition: Solution Annealed & Aged.
Finish: Pickled, passivated for high-purity steam service.

ASME Compliance

ASME Code Case: 2702
Significance: Mandatory approval for use in pressure-retaining A-USC boiler components.

Certification & Traceability

Standard: EN 10204 3.1 / 3.2.
Traceability: Full heat-lot stamping required for power utility plant audits.

Inconel 740 Tubes Detailed Specifications

Technical Product Details
Item / Trade Name	Inconel Alloy 740 Tube \| Inconel 740
Available Grades	Inconel 600 (UNS N06600), 601 (N06601), 617, 625 (N06625), 718 (N07718), 740, X-750 (N07751), Incoloy 20, 330, 800 (N08800), 800H (N08810/11), 800HT, 825 (N08825), 925
Standards & Specifications	ASTM / ASME SB 163, 167, 517, 704, 705, 161, 165, 444, 622, 677, 722, 729, 730 \| AMS 5581 \| GB, ISO, EN, JIS
Tube Type	Seamless, Welded (ERW), Fabricated, LSAW Tubes
Size Range (Seamless)	6.35 mm OD to 101.6 mm OD (As per ASTM B163)
Size Range (Welded/ERW)	6.35 mm OD to 152 mm OD (As per ASTM B730)
General Dimensions	OD: 10mm - 219mm \| Length: 1000mm - 15000mm
Wall Thickness	0.5mm to 60mm \| SWG: 10, 12, 14, 16, 18, 20 Swg
Condition & Finish	Condition: Hard (Y) / Soft (M) Finish: Polished, Annealed & Pickled (AP), Bright Annealed (BA), MF
Form & End Connection	Form: Round, Coil, ‘U’ Shape, Square, Rectangular Ends: Plain End, Beveled End, Threaded
Inspection & Testing	Ultrasonic Testing, Non-Destructive Electric Test, Hydrostatic, Eddy Current, Flattening, Flaring, Visual Surface Inspection, Dimensional Inspection, Tensile Properties, Chemical Analysis, Bend Test, Heat Treatment, Hardness, I.C. Test
Certification	ISO EN 10204 3.1 / 3.1B / 3.2, PED, DNV, TUV Certified
Marking	Standard, Grade, OD, Thickness, Length, Heat No. (Custom Marking available upon request)
Delivery & Origin	Delivery: Specialized in Shutdown, Emergency, and Project Rush Demands Origin: American, Russian, Japanese, Chinese Standard stock

Types of Inconel 740 Tubes

Inconel 740 Precision Tubes

Inconel 740 Heat Exchanger Tube

Inconel 740 Cold Drawn Seamless Tube

Inconel 740 Extruded Seamless Tube

Inconel 740 Round Tube

Inconel 740 Capillary Tube

High Quality Inconel 740 Seamless Tube
Inconel 740 Square Tube
Inconel 740 Round Tube
Inconel 740 Rectangular Tube
Inconel 740 Triangle Tube
Inconel 740 Hexagonal Tube
Inconel 740 Hollow Tubes Suppliers
Inconel 740 thermocouple Tube
Inconel 740 Cold Drawn Tube
Inconel 740 ERW Tube
Inconel 740 Colour Coated Pipe
Inconel 740 Welded Pipe
Inconel 740 Secondary & Surplus Pipe
Inconel 740 Outside Polished Tube
ASTM/ASME B167 Inconel 740 Capillary Pipe
Inconel 740 EFW Pipe
Inconel 740 Boiler Tubes
Inconel 740 Cold Drawn Tube
Inconel 740 U Shaped Tube
Inconel 740 Protection tube
Inconel 740 Cold Drawn Seamless pipe
Inconel 740 Cold Drawn Seamless tube
Inconel 740 Extruded Seamless Pipe
Inconel 740 Extruded Seamless Tube
Inconel 740 Round Tube
Inconel 740 Heat Exchanger Tube
Inconel 740 Square Tube
Inconel 740 Coiled Tubing

Alloy 601 Pipe/ Tube
Inconel 740 Electropolished Pipe & Tubes
Inconel 740 Hollow Pipe Manufacturer & Suppliers
ASTM/ASME B167 Inconel 740 Capillary Tubes
Inconel 740 U Shaped Tube
Inconel Alloy 601 Pipe/ Tube
Inconel 740 Tubing
Inconel 740 Oil Tube
WERKSTOFF NR.2.4851 Pipe, Tubes
UNS N06601 Pipe, Tubes
AFNOR NC23FeA Pipe, Tubes
GOST XH60BT 28-2,5-1,5 Pipe, Tubes
JIS NCF 601 Pipe, Tubes
BS NA 49 Pipe, Tubes
OR ЭИ868 Pipe, Tubes
EN NiCr23Fe Pipe, Tubes
Inconel 740 Triangle Tube
Inconel 740 Secondary & Surplus Tube
Inconel 740 High-strength capillary tubing
Inconel 740 Tubería
Inconel 740 Tubo
Inconel 740 Precision tubes
Inconel 740 Capillary tube
Hot finished seamless Inconel 740 tubing (HFS)
Cold drawn seamless Inconel 740 tubing (CDS)
Inconel 740 Electric resistance welded (ERW)

Inconel 740 Tubes Chemical Composition

Element	Content (%)
Nickel. Ni	48.27
Chromium, Cr	25
Cobalt, Co	20
Niobium, Nb	2
Titanium, Ti	1.8
Aluminum, Al	0.9
Iron, Fe	0.7
Silicon, Si	0.5
Molybdenum, Mo	0.5
Manganese, Mn	0.3
Carbon, C	0.03

Inconel 740 Tubes Mechanical Properties

Physical Properties

Property	Metric	Imperial
Physical Properties
Density	8.05 g/cm³	0.291 lb/in³
Melting Point	1288 – 1362 °C	2350 – 2484 °F
Mechanical Properties
Tensile Strength	1209 MPa	175,300 psi
Yield Strength (0.2% Offset)	818.4 MPa	118,700 psi
Elastic Modulus	221 GPa	32,000 ksi
Elongation at Break	36.40%	36.40%
Hardness (Rockwell C)	33.6	33.6
Thermal Properties
Thermal Expansion Co-efficient (@100°C / 212°F)	12.38 µm/m°C	6.878 µin/in°F
Thermal Conductivity (@23°C / 73.4°F)	10.2 W/m-K	70.8 BTU in/hr·ft²·°F

International Grade Designations of Inconel 740 Tubes

Standard Organization	Designation / Standard
UNS	N07740
ASME Code Case	2702
Industry Trade Name	Inconel 740H® / Alloy 740H
Primary Application	A-USC Boiler Pressure Components

Inconel 740 Tube Schedule Chart & Wall Thickness

NPS (in)	Outside Diameter (in)	Inconel 740 Wall Thickness per Schedule (in)
		SCH 10	SCH 20	SCH 30	SCH STD	SCH 40	SCH 60	SCH XS	SCH 80	SCH 100	SCH 120	SCH 140	SCH 160	SCH XXS
		1/8	0.405	-	-	-	0.068	0.068	-	0.095	0.095	-	-	-	-	-
1/4	0.540	-	-	-	0.088	0.088	-	0.119	0.119	-	-	-	-	-
3/8	0.675	-	-	-	0.091	0.091	-	0.126	0.126	-	-	-	-	-
1/2	0.840	-	-	-	0.109	0.109	-	0.147	0.147	-	-	-	0.187	0.294
3/4	1.050	-	-	-	0.113	0.113	-	0.154	0.154	-	-	-	0.219	0.308
1	1.315	-	-	-	0.133	0.133	-	0.179	0.179	-	-	-	0.250	0.358
1 1/4	1.660	-	-	-	0.140	0.140	-	0.191	0.191	-	-	-	0.250	0.382
1 1/2	1.900	-	-	-	0.145	0.145	-	0.200	0.200	-	-	-	0.281	0.400
2	2.375	-	-	-	0.154	0.154	-	0.218	0.218	-	-	-	0.344	0.436
2 1/2	2.875	-	-	-	0.203	0.203	-	0.276	0.276	-	-	-	0.375	0.552
3	3.500	-	-	-	0.216	0.216	-	0.300	0.300	-	-	-	0.438	0.600
3 1/2	4.000	-	-	-	0.226	0.226	-	0.318	0.318	-	-	-	-	-
4	4.500	-	-	-	0.237	0.237	-	0.337	0.337	-	0.438	-	0.531	0.674
5	5.563	-	-	-	0.258	0.258	-	0.375	0.375	-	0.500	-	0.625	0.750
6	6.625	-	-	-	0.280	0.280	-	0.432	0.432	-	0.562	-	0.719	0.864
8	8.625	-	0.250	0.277	0.322	0.322	0.406	0.500	0.500	0.594	0.719	0.812	0.906	0.875
10	10.750	-	0.250	0.307	0.365	0.365	0.500	0.500	0.594	0.719	0.844	1.000	1.125	1.000
12	12.750	-	0.250	0.330	0.375	0.406	0.562	0.500	0.688	0.844	1.000	1.125	1.312	1.000
14	14.000	0.250	0.312	0.375	0.375	0.438	0.594	0.500	0.750	0.938	1.094	1.250	1.406	-
16	16.000	0.250	0.312	0.375	0.375	0.500	0.656	0.500	0.844	1.031	1.219	1.438	1.594	-
18	18.000	0.250	0.312	0.438	0.375	0.562	0.750	0.500	0.938	1.156	1.375	1.562	1.781	-
20	20.000	0.250	0.375	0.500	0.375	0.594	0.812	0.500	1.031	1.281	1.500	1.750	1.969	-
22	22.000	0.250	0.375	0.500	0.375	-	0.875	0.500	1.125	1.375	1.625	1.875	2.125	-
24	24.000	0.250	0.375	0.562	0.375	0.688	0.969	0.500	1.219	1.531	1.812	2.062	2.344	-
30	30.000	0.312	0.500	0.625	0.375	-	-	0.500	-	-	-	-	-	-
32	32.000	0.312	0.500	0.625	0.375	0.688	-	-	-	-	-	-	-	-
34	34.000	0.312	0.500	0.625	0.375	0.688	-	-	-	-	-	-	-	-
36	36.000	0.312	0.500	0.625	0.375	0.750	-	-	-	-	-	-	-	-
42	42.000	-	0.500	0.625	0.375	0.750	-	-	-	-	-	-	-	-

Industrial Locations & Keywords

Industrial Locations & Keywords
Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair)
Jeddah Industrial Cities (1st, 2nd & 3rd)
Dammam Industrial Areas (1st, 2nd & 3rd)
Jubail Industrial City
Yanbu Industrial City
Rabigh Industrial City
Al Khobar Industrial Area
Al Ahsa Industrial City
Madinah Industrial City
Makkah Industrial City
Taif Industrial City
Tabuk Industrial City
Jazan Industrial City
Industrial supplier in Saudi Arabia
Pipe fittings supplier in Jubail / Dammam / Riyadh
Flange and valve supplier Saudi Arabia
Fast delivery industrial materials KSA