ASTM B829 GH3030 / XH78T Seamless High Temperature Nickel Alloy Pipe Tube Bright Annealed Surface¹

Product Description GH3030 alloy material is a Ni-Cr-based solid solution strengthened and deformed high-temperature alloy with a service temperature below 800°C. The alloy has good thermal strength, high plasticity, resistance to cold and thermal fatigue and oxidation properties, and has good cold stamping and welding process properties. The alloy becomes single-phase austenite after solid solution treatment, and its structure is stable during use. It is mainly used for turbine engine combustion chamber parts that work below 800°C, and for high-temperature parts below 1100°C that require oxidation resistance but bear small loads. The main products are cold-rolled plates, bars, rings, wires and pipes. GH3030 alloy materials have been used to manufacture aero-engine combustion chambers, afterburners and casing mounting edges. GH3030 alloy material has excellent welding performance and can be welded by argon arc welding, spot welding, seam welding or brazing. If the solid solution temperature is low during production, the old grain boundaries formed by residual carbides will be retained. GH3030 is a high-temperature alloy and is a nickel-based high-temperature alloy. It is also known as Alloy 3030 or Inconel 3030. The alloy is primarily composed of nickel (approximately 55%), chromium (approximately 19%) and iron (approximately 18%), with smaller amounts of other elements such as cobalt, molybdenum and aluminum.GH3030 has 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 maintains its mechanical properties at high temperatures and shows good corrosion resistance in various corrosive media.1. MaterialSteel GradeGH3030  KhN78T  XH78T ЭИ435Production ProcessAvailable in cold rolled and cold drawnStandardGBT-15062 GOST9941 ASTM B829 / ASME SB8292. Diameter of Seamless PipeW.T1mm-10mmDiameter20mm thru 630mmLength2m-12m, or customer required3.Heat-treated Condition Solution and Aging, Annealing, Ausaging, Q+T, etc4. ApplicationThe Organic chemical process parts contain chloride, especially in the use of acid chloride catalyst.The digester and bleachers use paper pulp and paper making industry.Absorption tower, re-heater, gas import board, fan, blender, fairwater fin, flue, and so on for use in flue gas desulfurization system.The equipment and parts in the use of acidic gas environments.Acetic acid and anhydride reaction generatorSulfur acid cooling5. 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 Time1.for ready stock :7 days after receiving the deposit of T/T2.For MTO: 35 days after receiving the  deposit of T/T7. Trade TermsEXW,FOB, CFR, CIF etc.8. Payment Terms1.30%T/T in advance, the balance against the B/L copy2.30%T/T in advance, the balance against the L/C at sight9. Loading PortNingbo/Wenzhou/ShanghaiChemical Composition For GH3030 XH78T Nickle Alloy Seamless Pipe TubeAlloy Grade CSiMnPSCrNiAlTiFeGH3030XH78TMIN--- -19.0Balance-0.15-MAX0.120.800.700.0300.02022.00.150.351.50Physicial Properties For GH3030 XH78T Nickle Alloy Seamless Pipe TubeDensityg/cm38.4lb/in.30.303Melting Range°F2507 - 2588°C1374 - 1420Mechanical Properties For GH3030 XH78T Nickle Alloy Seamless Pipe TubeAlloy GradeTensile Strengthmin,MPaElongationGH3030 / XH78T78535%The Permissible Deviation In Outside Diameter for GB/T 15062-2008 GH3030 Seamless PipeOutside DiameterOD TolerancemmNormalHigh6≤OD≤10±0.20mm±0.15mm10<OD≤30±0.30mm±0.20mm30<OD≤50±0.4%±0.3%OD>50±0.9%D±0.80%DThe Permissible Deviation In Wall Thickness For GB/T 15062-2008 GH3030 Seamless PipeWall Thickness  mmWT ToleranceNormalHigh0.5≤WT≤1.0±0.12mm±0.10mm1.0≤WT≤3.0+15%/-12%+12%/-10%WT>3.0+12%/-10%±10%The Permissible Deviation In Length For GB/T 15062-2008 GH3030 Seamless PipeFixed Length Tolerance+15mm / -0mmStandard Dimension and Permissible For TU 14-3-520-76 XH78T Seamless Tube / Pipe StandardOutside Diameter Tolerance(mm)Thickness Tolerance(mm)Length Tolerance (mm)TU 14-3-520-76XH78T[6~30]±0.45[1.0~3.0]±15%+5mm/-0mmAbove 30±0.1.2%Above3.0±12.5%Standard Dimension and Permissible For ASTM B829 Nickel and Nickel Alloys Seamless Pipe and Tube Nominal Outside Diameter,OutsideThickness of SpecifiedThickness of Specifinedin. (mm)Diameter, in (mm)Average Wall, %Minimum Wall, % PlusMinusPlusMinusPlusMinusOver 0.400(10) to 5/8(16), excl0.005(0.13)0.005(0.13)15153005/8(16) to 1 1/2(38), incl0.075(0.19)0.075(0.19)1010220Over 1 1/2(38) to 3 (76), incl0.010(0.25)0.010(0.25)1010220Over 3(76) to 4 1/2(114), incl0.010(0.38)0.010(0.38)1010220Over 4 1/2(114) to 6(152), incl0.020(0.51)0.020(0.51)12.512.5280Over 6(162) to 6 5/8(168), incl0.025(0.64)0.025(0.64)12.512.5280Over 6 5/8(168) to 8 5/8(219), incl0.031(0.79)0.031(0.79)12.512.5280Aovality -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. Alloy XH78T GH3030 is used in manufacturing a bar section and detail forging.They work at a temperature that does not exceed 1100 °C. Alloy is widely used in aircraft mechanical engineering, manufacture of engines. Wire of this alloy is in muchrequest when welding nickel alloys in energetic mechanical engineering or when welding metallic constructions made of carbon and stainless steel. While doing this, there must be used electrodes and all-rolled wheels. Welding is performed with a previous heating up to a temperature of 200?300°С and further annealing of seams.  Positive Material Identification (PMI)Guohao Steel can perform PMI testing in house for most grades, or we can work with independent labs to complete PMI in order to meet customer specifications.TestingIn 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. 

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