Hastelloy G30/ G35 Supplier

Hastelloy G30/ G35 Supplier

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Hastelloy G30/ G35 Suppliers


Hastelloy® ALLOY G30/ G35


W.NR 2.4603
UNS N06030
AWS 056

HASTELLOY G-30 is an improved version of nickel-chromium-iron molybdenum-copper alloy G-3. With higher chromium, added cobalt and tungsten the nickel HASTELLOY G-30 shows superior corrosion resistance over most other nickel and iron based alloys in commercial phosphoric acids as well as complex environments containing highly oxidizing acids such as nitric/hydrochloric, nitric/hydrofluoric and sulfuric acids. HASTELLOY G-30 resists the formation of grain boundary precipitates in the heat-affected zone, making it suitable in the as-welded condition.

HASTELLOY G-30 is basically the same as other high alloys in regard to formability. It is generally stiffer than an austenitic. Because of its good ductility, cold working is relatively easy and is the preferred method of forming. The alloy is easily weldable using Gas-Tungsten Arc, Gas Metal Arc and shielded Metal Arc. The welding characteristics are similar to those of G-3.

HASTELLOY® G-35® alloy (UNS N06035) was designed to resist “fertilizer-grade” phosphoric acid (P2O5), which is used in the production of fertilizers. Tests in real-world solutions indicate that G-35® alloy is far superior to other metallic materials in this acid. It was also designed to resist localized attack in the presence of chlorides, since this can be a problem beneath deposits in evaporators used to concentrate “fertilizer-grade” phosphoric acid. HASTELLOY® G-35® alloy is available in the form of plates, sheets, strips, billets, bars, wires, pipes, tubes, and covered electrodes.

Hastelloy G30/ G35 is registered trademarks of Haynes International Inc

Hastelloy G30/ G35 Composition

Hastelloy G30/ G35 Data Sheet

Hastelloy G30/ G35 Chemical Composition, %

Chemical Composition

Element Min % Max %
Cr 28.00 31.50
Mo 4.00 6.00
Fe 13.00 17.00
W 1.50 4.00
C 0.03
Si 0.80
Co 5.00
Mn 1.50
P 0.04
S 0.02
Cu 1.00 2.40
Nb/Cb 0.30 1.50
Nb+Ta 0.30 1.50
V 0.03
Ni bal

Hastelloy G30/ G35 ASTM Standards

  • ASTM B366
  • ASTM B581
  • ASTM B582
  • ASTM B619
  • ASTM B622
  • DIN 2.4603

Mechanical Properties

Properties Metric Imperial
Tensile strength 1096 MPa 159000 psi
Yield strength (@0.2%) 1000 MPa 145000 psi
Modulus of elasticity (plate heat treated to 1177°C, rapid quenched) 202 GPa 29300 ksi
Elongation at break (in 50.8 mm) 12% 12%
Reduction of area 57% 57%
Hardness, Brinell (converted from Rockwell C hardness) 304 304
Hardness, Knoop (converted from Rockwell C hardness) 326 326
Hardness, Rockwell C 32 32
Hardness, Vickers (converted from Rockwell C hardness) 316 316

Heat Treatment of Finished Parts
Condition as supplied by Alloy Wire Type Temperature Time (Hr) Cooling
°C °F
Annealed or Spring Temper Stress Relieve 400 – 450 750 – 840 2 Air
Condition Approx. tensile strength Approx. operating temperature
N/mm² ksi °C °F
Annealed 650 – 900 94 – 131 -200 to +400 -330 to +750
Spring Temper 1000 – 1500 145 – 218 -200 to +400 -330 to +750

Hastelloy G30/ G35 Melting Point

Density 8.22 g/cm³ 0.297 lb/in³
Melting Point 1399°C 2550°F
Coefficient of Expansion 12.8 μm/m °C (20 – 100°C) 7.1 x 10-6 in/in °F (70 – 212°F)
Modulus of Rigidity 77.6 kN/mm² 11255 ksi
Modulus of Elasticity 202 kN/mm² 29298 ksi


HASTELLOY(r) G30(r) alloy can be machined using conventional techniques employed for iron based alloys. The quality of the alloy can be improved with the utilization of water-base coolants. Heavy duty machining tools and equipment can be used prior to cutting in order to reduce chattering or work-hardening of the alloy.


HASTELLOY(r) G30(r) alloy can be formed through conventional forming methods.


Welding of HASTELLOY(r) G30(r) alloy is performed through commonly used welding techniques like gas tungsten arc welding, shielded metal-arc welding, metal-arc welding and submerged-arc welding. However, an alloy filler metal that suits this alloy should be used.

Heat Treatment

HASTELLOY(r) G30(r) alloy is capable of being annealed. However, this alloy must be solution-annealed after hot forming in order to restore its resistance to corrosion.


As HASTELLOY(r) G30(r) alloy has good ductile property, it can be forged easily.

Cold Working

HASTELLOY(r) G30(r) alloy can be cold worked using standard tooling methods. As plain carbon steels produce galling, they are not preferred for forming HASTELLOY(r) G30(r) alloy. Galling can be minimized with the help of heavy duty lubricants.


HASTELLOY(r) G30(r) alloy can be annealed at 1177ºC (2150ºF) followed by rapid cooling of air and water quenching.


HASTELLOY(r) G30(r) alloy can be hardened by cold working.


Hastelloy G30/ G35 Price per Pound

Hastelloy G30/ G35 Price in India: US $10-12 per Pound

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Hastelloy G30/ G35 APPLICATIONS

The Alloy G30/ G35 and Hastelloy G30/ G35 used in the following applications:-

  • Digesters and bleach plants in the paper industry.
  • Components exposed to sour gas.
  • Equipment for flue-gas desulfurisation plants.
  • Evaporators, heat exchangers, filters and mixers used in sulfuric acid environments.
  • Sulfuric acid reactors.
  • Organic chloride process equipment.
  • Equipment for processes utilizing halide or acid catalysts.

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Available Stock of Hastelloy G30/ G35

Countries we have exported Hastelloy G30/ G35 : South Africa, Puerto Rico, Azerbaijan, Sri Lanka, India, Bhutan, Kenya, Saudi Arabia, Switzerland, Nigeria, New Zealand, Egypt, Ghana, Libya, Pakistan, Taiwan, United Kingdom, Indonesia, China, Croatia, Bangladesh, Vietnam, Ukraine, Angola, Romania, Jordan, Gambia, Namibia, Netherlands, Nepal, Zimbabwe, Mexico, Macau, South Korea, Russia, Oman, Yemen, Finland, Ireland, Qatar, Hong Kong, Estonia, Nigeria, Spain, Chile, Italy, Sweden, Poland, Germany, Trinidad & Tobago,Tunisia, Kuwait, Belgium, Iraq, Iran, Malaysia, Argentina, Chile, Thailand, Peru, Israel, United Arab Emirates, Ecuador, Hungary, Morocco, Turkey, Norway, United States, Iran, Belarus, Tibet, Canada, Colombia, Lebanon, Poland, Algeria, Mexico, Venezuela, Austria, Bahrain, Brazil, Bolivia, Mongolia, France, Greece, Japan, Serbia, Lithuania, Kazakhstan, Bulgaria, Afghanistan, Singapore, Slovakia, Gabon, Czech Republic, Portugal, Australia, Philippines, Denmark, Costa Rica.

Cities we have supplied Hastelloy G30/ G35 to: Mumbai, Muscat, Granada, Jamshedpur, Santiago, Chennai, Moscow, New York, Kuwait City, Navi Mumbai, Kolkata, Sharjah, Montreal, Karachi, Toronto, Riyadh, Baroda, Manama, Tehran, Ludhiana, Hanoi, Cairo, Secunderabad, Ankara, Jeddah, Busan, Al Khobar, Ho Chi Minh City, Atyrau, Howrah, Al Jubail, Visakhapatnam, Jakarta, Houston, Ulsan, Thiruvananthapuram, Faridabad, Port-of-Spain, Pimpri-Chinchwad, Singapore, Colombo, Vadodara, Brisbane, Hong Kong, Seoul, Hyderabad, Pune, Nagpur, London, Calgary, Kanpur, Abu Dhabi, Los Angeles, Gurgaon, Dallas, Rio de Janeiro, Gimhae-si, Ahvaz, Rajkot, Doha, Surat, Haryana, Ahmedabad, Bengaluru, Geoje-si, Sydney, Edmonton, Mexico City, Coimbatore, Bogota, Noida, Indore, Ernakulam, Aberdeen, Lagos, Caracas, New Delhi, Istanbul, Madrid, Courbevoie, Thane, Dubai, Melbourne, Chandigarh, Jaipur, Vung Tau, Kuala Lumpur, Petaling Jaya, Lahore, Milan, Ranchi, Chiyoda, Dammam, La Victoria, Nashik, Bhopal, Perth, Algiers, Bangkok.