Special Materials Spiral Wound Gaskets of Sunwell

Our spiral wound gasket widely use in oil and gasket industrial ,chemical industrial, mining industrial ,power station and most industrial factory . Hastelloy C276, Alloy 276 (UNS N10276), A Nickel-Base Alloy with Resistance in a Wide Range of...

Product Details
We adhere to the enterprise spirit of 'honesty wins credibility, diligence creates brilliance', implements a market-oriented and technology-based business operation model, and strives to build a respected Kevlar fieber packing, Ring Joint Gasket, Spira Wound Gasket R Type manufacturer in the industry! We'll continue to devote ourselves to market & product development and build a well-knit service to our customer to create a more prosperous future. We're dedicated to excellent solutions and consumer aid. We will maintain the advantages, make up for the disadvantages and strive to create mutual benefit. We adhere to the principle of 'customer first' to provide quality service for our customers. Our company has a complete management system, advanced manufacturing equipment and professional production team to meticulously control the quality, making a high product qualification rate.

We have our new gasket manufacturing facility. Our spiral wound gasket widely use in oil and gasket industrial ,chemical industrial, mining industrial ,power station and most industrial factory . 

Hastelloy C276, Alloy 276 (UNS N10276), A Nickel-Base Alloy with Resistance in a Wide Range of Aggressive Media.
Alloy 276 is a nickel-molybdenum-chromium-iron-tungsten alloy which is among the most corrosion resistant alloys currently available. Alloy 276 also has good high temperature strength and moderate oxidation resistance although the alloy will eventually form embrittling high temperature precipitates. Alloy 276 has been available for several years and has been used in ASME Boiler and Pressure Vessel related construction.

Spiral Wound Gasket Hastelloy C276 Style applications:
> Chemical and petrochemical processing;
> Flue gas desulfurizationg;
> Pulp and paper equipments;
> Industrial and municipal waste equipments.

General Corrosion:
> Hastelloy C276used in a range of environments from moderately oxidizing to strongly reducing;
> One application is in the more corrosive area of flue gas desulfurization system, such as outlet ducting;
> Hastelloy C276 compared to that of SS316 in the "GREEN DEATH" simulated scrubber solution


Green Death Solution (Boiling)

Corrosion Rate, MPY (mm/a)



3% Hydrochloric Acid


26.5 (0.67)


> Hastelloy C276 is considered inert to seawater and is used in many seawater, brine, and high chloride environments, even at strong acid pH values;
> The high level of nickel and molybdenum provides extreme resistance to chloride stress corrosion cracking.

Chemical Analysis:

























Mechanical Properties:
Minimum properties (ASTM B 575)

0.2% Yield Strength Minimum psi (MPa)

Ultimate Tensile Strength Minimum psi (MPa)

Elongation (% in 2'') Minimum

Hardness Rb Minimum

41,000 (283)

100,000 (690)



TECHO is one of the leading manufacturers and suppliers of various sealing products in China. We have skillful and experienced workers in our factory. Now take action to wholesale quality expanded graphite hastlloy spiral wound gasket made in China with us.

We not only pay attention to the quality of Special Materials Spiral Wound Gaskets of Sunwell, but also have a group of professional and technical personnel and backbones to ensure that our design and production standards are ahead of the industry. Quality is the core competitiveness in the market. We firmly believe that only hard work can win the trust of customers, and diligence is reflected in all work activities that create value for customers, as well as the efforts made to enrich and improve ourselves in the process of work.
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