Audited Supplier
TU 14-3-520-76 XH78T
Aviation, Electronics, Industrial, Medical, Chemical
JIS, GB, DIN, BS, ASTM, AISI
78%
Alloy
Nickel Pipe
Not Powder
Cold Drawn/Cold Roll
Annealed Pickled, Bright Annealed
Round
76x3 mm
Heat treatment
GH-STEEL
Bundles/Wooden Box
XH78T GH3030
China
75052200
Product Description
This grade HN78T XH78T is manufactured with a help of open-type remelt method. This alloy is widely used in industries for manufacturing floating details that are exploited at a temperature range of 1000−1100°C (f. e. in manufacturing of flame tubes, thermocouple cases, combustion chambers etc.) International analogous grades of alloy are marked as 2.4951NiCr20Ti (Germany), GH3030 (PR China). Alloy has main types of mill-products: tube, wire, strip, sheet, rod. Due to high nickel content, it relates to a group of heat-resisting materials. Its main demerit is non-stability to environments that contain sulphur. It causes a brittle behavior. Its oxidation rate is 0,2 mm/h up to a temperature of 1100 °C.
| 1. Material | Steel Grade | GH3030 KhN78T XH78T ЭИ435 Nimonic75 |
| Production Process | Available in cold rolled and cold drawn | |
| Standard | GB/T-15062 | |
| 2. Specification of Seamless Pipe | Diameter | 3mm thru 273mm |
| Thickness | 0.5mm-10mm | |
| Length | 2m-12m, or customer required | |
| 3.Heat-treated Condition | Annealing, Bright Annealing | |
| 4. Application | Aerospace field: GH3030 XH78T high-temperature alloy can be used to manufacture engines, turbine blades, combustion chambers, and other high-temperature components. Chemical industry: GH3030 XH78T high-temperature alloy can be used to manufacture chemical reactors, catalyst carriers, and other high-temperature corrosive environment components. Power field: GH3030 XH78T high-temperature alloy can be used to manufacture power station boilers, heat exchangers, and other high-temperature environment components. | |
| 5. Packing | *All of our nickel alloy seamless pipes and tubes are packaged according to international standards to prevent any possible damage or loss. By default, we will use thick woven plastic bags to bundle the finished pipes together in batches. For some special pipes and tubes that are vulnerable to dirt, scratches, stress, or rough handling, we will suggest using wooden cases for protection. Please note that wooden cases may incur extra costs not only for the case itself but also for increased freight costs, especially when using air transportation. To enhance customer experience, we also provide dedicated packaging according to your specific requirements." | |
| 6. Delivery Time | 1.for ready stock :7 days after receiving the deposit of T/T 2.For MTO: 35 days after receiving the deposit of T/T | |
| 7. Trade Terms | EXW,FOB, CFR, CIF etc. | |
| 8. Payment Terms | 1.30%T/T in advance, the balance against the B/L copy 2.30%T/T in advance, the balance against the L/C at sight | |
| 9. Loading Port | Ningbo/Wenzhou/Shanghai | |
GH3030 alloy material is Ni-Cr based solid solution strengthened deformation superalloy, the use temperature is below 800ºC. The alloy has good thermal strength, high plasticity, resistance to cold and heat fatigue and oxidation, and has good cold stamping and welding process properties. The alloy is single-phase austenite after solution treatment, and the microstructure is stable during use. It is mainly used for turbine engine combustion chamber components that work below 800 ° C, and high-temperature components that require oxidation resistance but bear small loads below 1100 ° C. The main products are cold rolled sheet, bar, ring, wire and pipe, etc. GH3030 alloy material has been used in the manufacture of aero engine combustion chamber, afterburner and casing mounting edge. GH3030 alloy material excellent welding performance, can be argon arc welding, spot welding, seam welding or brazing. If the solution temperature is low in production, the old grain boundary formed by residual carbides will be preserved.GH3030 is a high-temperature alloy that belongs to the group of nickel-based superalloys. It is also known as Alloy 3030 or Inconel 3030. This alloy is primarily composed of nickel (approximately 55%), chromium (around 19%), and iron (approximately 18%), with smaller amounts of other elements such as cobalt, molybdenum, and aluminum.
GH3030 offers excellent high-temperature strength, oxidation resistance, and creep resistance, making it suitable for applications in extreme environments. It is particularly useful in industries such as aerospace, gas turbines, chemical processing, and nuclear reactors. The alloy retains its mechanical properties at elevated temperatures and exhibits good corrosion resistance in various corrosive media.
Some of the key properties and characteristics of GH3030 alloy include:
- High-temperature strength: GH3030 can maintain its strength and structural integrity at elevated temperatures, making it suitable for applications where heat resistance is critical.
- Oxidation resistance: The chromium content in GH3030 provides excellent resistance to oxidation, protecting the alloy from high-temperature environments.
- Creep resistance: GH3030 exhibits good resistance to creep deformation, which is the gradual deformation that occurs under constant load over time at high temperatures.
- Corrosion resistance: This alloy shows good resistance to corrosion in various corrosive environments, including acids, alkaline solutions, and saltwater.
- Good weldability: GH3030 can be easily welded using common welding techniques, allowing for the fabrication of complex structures.
XH78T is a high-temperature alloy that belongs to the group of nickel-based superalloys. It is also known as ЭИ435 or KHN78T.
XH78T alloy is primarily composed of nickel (approximately 70%), chromium (around 20%), and contains small amounts of other elements such as iron, titanium, aluminum, and cobalt. This combination of elements gives XH78T its unique properties, making it suitable for high-temperature applications.
Equivalent grade of GH3030
| China | France | Russia | Britain | USA | Germany | ||
| GB | ISC | NF EN/NF | GOST | BS EN/BS | Commercial grade | UNS | W-Nr. |
| GH3030 (GH30) | H30300 | ATG R NC 20T | ЭИ 435 XH78T KHN78T | HR5 DTD 703B N203 N403 | Nimonic75 | N06075 | 2.463 2.4951 |
Characteristic of GH3030 XH78T:
80ni-20cr solid solution-strengthened superalloy exhibits a straightforward chemical composition, demonstrating satisfactory thermal strength and high plasticity at temperatures below 800°C, along with excellent oxidation resistance, thermal fatigue resistance, and favorable cold stamping and welding process characteristics. After solution treatment, the alloy maintains a single-phase austenitic structure, which remains stable during practical application.Metallographic structure of GH3030 XH78T :
GH3030 alloy is single-phase austenite structure with a small amount of tic and Ti (CN) between them
GH3030 XH78T Seamless Pipe Chemical Composition
| Alloy Grade | C(max) | Si(max) | Mn(max) | P(max) | S(max) | Cr(max) | Ni | Al(max) | Ti | Fe(max) | Cu(max) |
| XH78T TU14-3-520-76 | 0.12 | 0.8 | 0.7 | 0.015 | 0.012 | 19-22 | Balance | 0.15 | 0.15-0.35 | 0.6 | 0.2 |
| GH3030 GB/T 15062-2008 | 0.12 | 0.8 | 0.7 | 0.03 | 0.02 | 19-22 | Balance | 0.15 | 0.15-0.35 | 1.5 | 0.2 |
GH3030 XH78T Seamless Pipe Physical Properties
| Alloy Grade | Density | Melting point |
| GH3030 / XH78T | 8.4 g/cm³ | 1374-1420ºC |
GH3030 XH78T Seamless Pipe Mechanical Properties
| Alloy Grade | Tensile strength ó b/MPa | Yield strength ó 0.2/MPa | Elongation δ5% |
| XH78T TU 14-3-520-76 | 588 | 255 | 35% |
| GH3030 GB/T15062-2008 | 590 | - | 35 |
GB/T 15062-2008 GH3030 Seamless Tube / Pipe Standard Dimension and Permissilbe
| Standard | Outside Diameter Tolerance(mm) | Thickness Tolerance(mm) | Length Tolerance (mm) | ||
| GB/T 15062-2008 | [6~10] | Normal:±0.20 High:±0.15 | [0.5~1.0] | Normal:±0.12; High:±0.10 | +15mm/-0mm |
| (10~30] | Normal:±0.30 High:±0.20 | (1.0~3.0] | Normal:+15% / -12%; High:+12% / -10% | ||
| (30~50] | Normal:±0.40 High:±0.30 | Above3.0 | Normal:+12% / -10%; High:±10% | ||
| Above 50 | Normal:±0.9% High:±0.8% | ||||
TU 14-3-520-76 XH78T ЭИ435 Seamless Tube / Pipe Standard Dimension and Permissilbe
| Standard | Outside Diameter Tolerance(mm) | Thickness Tolerance(mm) | Length Tolerance (mm) | ||
| TU 14-3-520-76 XH78T /ЭИ435 | [6~30] | ±0.45 | [1.0~3.0] | ±15% | +5mm/-0mm |
| Above 30 | ±0.1.2% | Above3.0 | ±12.5% | ||
GB/T 15062-2008 GH3030 / TU 14-3-520-76 XH78T Seamless Tube / Pipe Standard Dimension and Permissilbe
| Standard | Outside Diameter Tolerance(mm) | Thickness Tolerance(mm) | Length Tolerance (mm) | ||
| GB/T 15062-2008 GH3030 | [6~10] | Normal:±0.20 High:±0.15 | [0.5~1.0] | Normal:±0.12; High:±0.10 | +15mm/-0mm |
| (10~30] | Normal:±0.30 High:±0.20 | (1.0~3.0] | Normal:+15% / -12%; High:+12% / -10% | ||
| (30~50] | Normal:±0.40 High:±0.30 | Above3.0 | Normal:+12% / -10%; High:±10% | ||
| Above 50 | Normal:±0.9% High:±0.8% | ||||
| TU 14-3-520-76 XH78T | [6~30] | ±0.45 | [1.0~3.0] | ±15% | +5mm/-0mm |
| Above 30 | ±0.1.2% | Above3.0 | ±12.5% | ||
ASTM B829 Seamless Tube / Pipe Standard Dimension and Permissilbe
| Permissible Variations | ||||||
| Nominal Outside Diameter, | Outside | Thickness of Specified | Thickness of Specifined | |||
| in. (mm) | Diameter, in (mm) | Average Wall, % | Minimum Wall, % | |||
| Plus | Minus | Plus | Minus | Plus | Minus | |
| Over 0.400(10) to 5/8(16), excl | 0.005(0.13) | 0.005(0.13) | 15 | 15 | 30 | 0 |
| 5/8(16) to 1 1/2(38), incl | 0.075(0.19) | 0.075(0.19) | 10 | 10 | 22 | 0 |
| Over 1 1/2(38) to 3 (76), incl | 0.010(0.25) | 0.010(0.25) | 10 | 10 | 22 | 0 |
| Over 3(76) to 4 1/2(114), incl | 0.010(0.38) | 0.010(0.38) | 10 | 10 | 22 | 0 |
| Over 4 1/2(114) to 6(152), incl | 0.020(0.51) | 0.020(0.51) | 12.5 | 12.5 | 28 | 0 |
| Over 6(162) to 6 5/8(168), incl | 0.025(0.64) | 0.025(0.64) | 12.5 | 12.5 | 28 | 0 |
| Over 6 5/8(168) to 8 5/8(219), incl | 0.031(0.79) | 0.031(0.79) | 12.5 | 12.5 | 28 | 0 |
| AOvality -The permissible variations in this table apply to individual measurements, incluluding out-of-roundness (ovality) except for the following: For pipe and tube having a nominal wall thickness of 3% or less of the nominal outside diameter, the mean outside diameter shall conform to the permissible variations of this table and individual measurements (including ovality) shall conform to the plus and minus values of the table, with the values increased by 0.5% of the nominal ouside diameter. For pipe and tube over 4 1/2 in. (114 mm) in outside diameter with a nominal wall thickness greater than 3% of the nominal ouside diameter with a nominal wall thickness greater than 3% of the nominal outside diameter, the mean outside diameter shall conform to the permissible variations of this table and individual measurements shall not exceed twice the permissible variations of the table.BEccentricity - The permissible variations in this table to individual measurements including eccentricity. | ||||||
Due to its exceptional properties, the XH78T alloy finds potential applications across various industries:
Aerospace Industry: XH78T could be utilized in aerospace components like engine parts, structural elements, or components requiring lightweight yet robust materials capable of withstanding high stress and temperature fluctuations.
Automotive Sector: In the automotive industry, XH78T might find application in high-performance engine components, exhaust systems, or critical parts requiring superior durability and heat resistance.
Industrial Machinery: Its resistance to wear and corrosion makes XH78T suitable for use in machinery parts, pumps, valves, and tools subjected to challenging operating conditions.
Chemical Processing: The corrosion-resistant nature of XH78T could be advantageous in chemical processing equipment, reactors, or pipelines where exposure to corrosive substances is prevalent.
In this hypothetical context, the XH78T alloy embodies a fusion of properties that make it an attractive choice for industries requiring materials with exceptional strength, corrosion resistance, thermal stability, and durability. While it doesn't represent an existing alloy, its theoretical characteristics showcase the potential of advanced alloy engineering and its possible implications across various sectors.
Aerospace Industry: XH78T could be utilized in aerospace components like engine parts, structural elements, or components requiring lightweight yet robust materials capable of withstanding high stress and temperature fluctuations.
Automotive Sector: In the automotive industry, XH78T might find application in high-performance engine components, exhaust systems, or critical parts requiring superior durability and heat resistance.
Industrial Machinery: Its resistance to wear and corrosion makes XH78T suitable for use in machinery parts, pumps, valves, and tools subjected to challenging operating conditions.
Chemical Processing: The corrosion-resistant nature of XH78T could be advantageous in chemical processing equipment, reactors, or pipelines where exposure to corrosive substances is prevalent.
In this hypothetical context, the XH78T alloy embodies a fusion of properties that make it an attractive choice for industries requiring materials with exceptional strength, corrosion resistance, thermal stability, and durability. While it doesn't represent an existing alloy, its theoretical characteristics showcase the potential of advanced alloy engineering and its possible implications across various sectors.
| Positive Material Identification (PMI) | Guohao Steel can perform PMI testing in house for most stainless steel grades, or we can work with independent labs to complete PMI in order to meet customer specifications. |
| Testing | In some cases, HT/ET/UT testing of the stainless steel pipes may be required. We can assist you with this requirement. |
Q1:How many countries you already exported ?A1:Exported to more than 30 countries mainly from America, Russia, Ukraine, Vietnam, Egypt, Iran, Turkey, Mexico etc.
Q2:How can I get some samples?
A2:Small samples in store and can provide the samples for free. Catalogue is available, most patterns we have ready samples in stock. Customized samples will take about 5-7days.
Q3:Do you have any MOQ limit for stainless steel products order?
A3: MOQ, 1pc for ready stock of stainless steel seamless pipe. MOQ :1 tons for MTO.
Q4. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional. For mass products, ship freight is preferred.
Q5:How does your company do regarding quality control?
A5:Mill Test Certificate is supplied with shipment. If needed, a Third Party Inspection is acceptable or SGS.
Q6: Is it OK to print my logo on products??
A7: Yes. OEM and ODM are available for us.
