Duplex Steel S31803 Pipes
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Duplex Steel S31803 Pipes

GNEE Steel are a renowned distributor and supplier of Duplex S31803 Pipes & Tubes, which provide superior corrosion resistance. These Duplex Steel UNS S31803 Pipes come in a variety of configurations, components, diameters, and thicknesses, and can be modified to meet the needs of the customer.
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As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.

Product Introduction

Duplex stainless steels are extremely corrosion resistant, work hardenable alloys. Their microstructures consist of a mixture of austenite and ferrite phases. As a result, duplex stainless steel display properties characteristic of both austenitic and ferritic stainless steel. This combination of properties can mean some compromise when compared with pure austenitic and pure ferritic grades.
Our Duplex S31803 Pipes and Tubes exhibit the qualities of both austenitic and ferritic stainless steel. Our Duplex S31803 Pipes are typically provided annealed, with yield strengths in excess of 65 KSI. These Duplex S31803 Tubes also have a high endurance strength and an excellent tolerance to stress tension strength, in harsh settings, crevices, pitting, abrasion, and intergranular can occur.

ASTM A790 S31803 Duplex Stainless Steel Pipe Specifications
Outside Diameter 6-203mm
Wall Thickness 0.5-25mm
Length Up to 25m
Standard ASTM A789, A790, etc.
Grade S32304/S31803/S32205/S32750/S31260/S32550/S32760,S32707,etc.
Delivery Condition Pickled, Polished, Bright Annealed
Technique Seamless/Welded
Application Heat Exchanger, Heater, Condenser, Machining, Bearing Machining, API Service…
Marking LOGO, Standard, Grade, Size, Heat Number.
Package Woven bag, wooden case, or as per customer's requirement.
Quality Requirement Mill Test Certificate (EN 10204/3.1); Third Part Inspection is acceptable.

super duplex

Features Of Super Duplex Stainless Steel Pipe

Our Duplex S31803 Tubes incorporate around 10 % chromium and have a strong resistance to chloride stress corrosion cracking. These Duplex S31803 Pipes have an austenite pool configuration enclosed by a persistent ferrite phase. The yield strength of our Duplex S31803 Tubes is roughly twice that of normal austenitic stainless steel grades. These Duplex S31803 Pipes are the latest commonly used duplex grade and should not be utilized at temperatures exceeding 300 degrees Celsius owing to brittleness.

Duplex Steel UNS S31803 Pipes are utilized in a variety of sectors, including refining procedures, transportation, and storing, oilfield and gasoline drilling and handling facilities, maritime and other high chloride conditions, pulp & paper digesters, beverage containers, and paper machinery. This Duplex S31803 Tube has stress corrosion cracking resistance, which is important for a variety of purposes such as hot water tanks, process plants, breweries tanks, and desalination plants. We provide these Duplex Steel UNS S31803 Pipes and Tubes with a variety of documentation and testing credentials to assure the quality of our product and raw materials.

Packing&Delivery

ss seamless tubing

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