INCONEL™ 738: FORGING FACTS & CHARACTERISTICS

Inconel™ 738 offers a combination of outstanding high-heat creep-rupture strength and corrosion resistance better than many high-strength superalloys with lower chromium content. Inconel 738 is a nickel-based alloy, vacuum-cast and precipitation-hardened, offering exceptional mechanical properties to 1800°F (982°C). IN-738 holds up to the hot corrosive environments found in the turbine industry.

CHEMICAL COMPOSITION OF INCONEL™738

• Carbon 0.15-0.20
• Cobalt 8.00-9.00
• Chromium 15.70-16.30
• Molybdenum 1.50-2.00
• Tungsten 2.40-2.80
• Tantalum 1.50-2.00
• Columbium 0.60-1.10
• Aluminum 3.20-3.70
• Titanium 3.20-3.70
• Aluminum and titanium 6.50-7.20
• Boron 0.005-0.015
• Zirconium 0.05-0.15
• Iron 0.50 max
• Manganese 0.20 max
• Silicon 0.30 max
• Sulfur 0.015 max
• Nickel remainder

HEAT TREATMENT OF INCONEL™738

• 2050°F (1121°C) for 2 hours
• Air cool
• 1550°F (843°C) for 24 hours
• Air cool

APPLICATIONS OF INCONEL™ 738

• Inconel 738 is most commonly used for gas turbine blades and vanes for industrial use.

MACHINABILITY OF INCONEL™ 738

• Sturdy and short drills, reamers, taps and end mills
• Positive feeds with no tool dwelling
• High-speed tools in turning operations
• Carbide tools for tapping, reaming and drilling
• Lubricate continuously
  • Chemical emulsions for turning
  • Chlorinated oil for tapping, reaming, drilling and milling
• 6000 rpm wheel speed for surface grinding, using highly sulfurized oil
• Normal finish grinding techniques

CORROSION RESISTANCE OF INCONEL™ 738

• Exceeds strong superalloys
• Resists oxidation to 2000°F (1093°C)
• Improved sulfidation resistance up to 1800°F (982°C)
• Demonstrated resistance atmospheres with hydrogen sulfide and sulfur dioxide to 1800°F (982°C)

Jiangsu Mittel Steel Industrial Limited is  located in Wuxi City,  a beautiful city near Shanghai.  Wuxi is close to  Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transportation. , Wuxi become the biggest  stainless steel sheet ,plate and coil  supply Centers in China. Jiangsu Mittel Steel Industrial Limited was established in 1998 years. as one of the largest stockists and manufacturers of industrial grade Stainless Steel products and derivatives in Wuxi ,We keep a stock of 50000 tons every month, so we can delivery goods in fast time.

Our company supplies cold/hot-rolled stainless steel sheets,stainless steel coils and stainless steel Plate to many steel factories from athome and abroad, including Shanxi Taigang Iron& Steel CO, . Ltd (TISCO)Zhangjiagang Pohang (ZPSS), Shanghai BAO STEEL, Ningbo Baoxin and steel factories in Taiwan area, Mainland Chinese and foreign countries and regions. 

Our long-term business lines are 201.202.304(1.4301).304L.316.316L(1.4404).430.409L, 309S ,310S(1.4845).317L.904L.S31803(1.4462).S32750.S32760, Finish: 2B, BA, NO. 1 NO. 4, HL, 8K and so on...Meanwhile, our company is also engaged in the long-term supply of homemade & imported medium and thick plates, galvanized and carbon steel products. 

Adhering to the principle of "quality first and customer foremost",our company will offer long-term service to nationwide manufacturers of household appliances, elevators, tableware, ornaments, tanks and machines. We can offer precise frosted wiredrawing, 8K mirror finishing and skim board oil-abrasion of various specifications at any time. The precisely-processed products will meet your requirements for high quality. Our company is a modern enterprise integrating distribution and storage. 

If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.