High-temperature alloy heat treatment GH3030 GH30 product various standards
High-temperature alloy heat treatment GH3030 GH30 product various standards
GH3030 is a high-temperature nickel-based superalloy that requires solution heat treatment and can have its strength improved through aging. Its heat treatment involves heating to a specific temperature, holding for a certain time, and then cooling to obtain a stable single-crystal austenitic structure. Its specifications are typically defined by various standards, such as ASTM B168 (for sheet metal) or the Chinese standard GB/T 14992.
What are high-temperature alloys?
High-temperature alloys, also known as superalloys, are metallic materials specifically designed to maintain strength and stability at extreme temperatures. They typically use nickel, cobalt, or iron as a base material and add elements such as chromium, aluminum, and molybdenum to enhance their heat resistance, oxidation resistance, and corrosion resistance. These alloys are crucial for high-stress applications in industries such as aerospace, power generation, and chemicals.
GH3030 (GH30) Solid Solution Strengthened Wrought Superalloy
GH3030 Properties and Applications Overview:
This alloy is an early-developed 80Ni-20Cr solid solution strengthened superalloy. It has a simple chemical composition, satisfactory high-temperature strength and high plasticity below 800℃, and good resistance to oxidation, thermal fatigue, cold stamping, and welding. After solution treatment, the alloy is a single-phase austenitic alloy with stable microstructure during use. It is mainly used for turbine engine combustion chamber components operating below 800℃ and other high-temperature components requiring oxidation resistance but bearing relatively low loads below 1100℃.
| EQUIVALENT GRADES OF High Temperature Gh3030: |
| China | Russia |
| GH3030 | XH78T |
| CHEMICAL COMPOSITION OF High Temperature Gh3030 : |
| Grade | C | Mn | Si | S | Ti | Fe | Ni | Cr | P | Al |
| GH3030 | 0.12 max | 0.70 max | 0.80 max | 0.02max | 0.15-0.35 | 1.5max | balance | 19.00 – 22.00 | 0.03 | 0.15 |
GH3030 Production Standards
| Standard Type | Chemical Composition | Bar Stock | Forgings | Plate/Sheet | Wire | Tubing |
|---|---|---|---|---|---|---|
| National Standards (China) | GB/T14992 | GB/T14994 GB/T14993 |
GB/T14997 GB/T14998 |
GB/T14995 GB/T14996 |
YB/T5249 | GB/T15062 |
| Aeronautical Standards | HB5189 | |||||
| Military Standards (China) | GJB2611 GJB3165 |
GJB3020 | GJB3317 GJB3195 |
GJB2612 GJB3167 |
GJB2297 |
Other standards for GH3030:
GJB 1952A Specification for Cold-Rolled High-Temperature Alloy Sheets for Aerospace Use
GJB 2297A Specification for Cold-Drawn (Rolled) Seamless High-Temperature Alloy Tubes for Aerospace Use
GJB 2611A Specification for Cold-Drawn High-Temperature Alloy Bars for Aerospace Use
GJB 2612 Specification for Cold-Drawn High-Temperature Alloy Wires for Welding
GJB 3020A Specification for High-Temperature Alloy Ring Billets for Aerospace Use
GJB 3165A Specification for Hot-Rolled and Forged High-Temperature Alloy Bars for Aerospace Load-Bearing Components
GJB 3167A Specification for Cold-Drawn High-Temperature Alloy Wires for Cold Heading
GJB 3317A Specification for Hot-Rolled High-Temperature Alloy Sheets for Aerospace Use
GJB 3318A Specification for Cold-Rolled High-Temperature Alloy Strips and Plates for Aerospace Use
HB/Z 140 Heat Treatment Processes for High-Temperature Alloys for Aerospace Use
YB/T 5245 Hot-rolled and forged high-temperature alloy bars for general load-bearing components
GH3030 Heat Treatment Regime
The standard heat treatment regimes for each product type are as follows:
a) Cold-rolled sheet: (980~1020)℃/AC, where δ≤3mm, holding for (8~12) min; δ3mm~5mm, holding for (12~16) min;
b) Wire: (980~1020)℃/WQ or AC, where d≤3mm, holding for (8~12) min; d3mm~5mm, holding for (12~16) min;
c) Pipe: (980~1020)℃/WQ;
d) Cold-drawn bar: (980~1000)℃/WQ or AC;
e) Forgings: (990~1010)℃ x (2~3) h/AC;
f) Welded parts: (990~1020)℃/AC, where δ(d) ≤3mm, keep warm for (8~12)min; δ(d)3mm~5mm, keep warm for (12~16)min.
GH3030 Processing Performance and Requirements:
1. This alloy has good forgeability, with a forging heating temperature of 1180℃ and a final forging temperature of 900℃.
2. The average grain size of this alloy is closely related to the degree of deformation of the forging and the final forging temperature.
3. After heat treatment, the oxide scale on the surface of the parts can be removed by sandblasting or pickling.
Why Choose Gnee Nickel Alloy (Supplier Example)?
✅ Large stock of GH 3030 stainless steel strip/coil available for fast shipping.
✅ Factory direct sales, highly competitive prices, excellent value for money.
✅ Comprehensive quality assurance: Material Testing Certificate (MTC), Chemical Composition Certificate, and Mechanical Properties Certificate.
✅ Value-added services: Slitting, Cutting, Polishing, Surface Treatment.
✅ Worldwide shipping, secure and reliable packaging, and provision of export documentation.
Email: ss@gneemetal.com
Gnee Steel is a professional manufacturer of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power, automotive, and nuclear energy industries, and we can provide customized alloy material solutions according to customer needs. For alloy material price inquiries or to request customized alloy material solutions, please feel free to contact us at ss@gneemetal.com for a quote.
