ASTM A789 UNS S31803 Duplex Stainless Steel Seamless Tube For Chemical Process

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Buy cheap ASTM A789 UNS S31803 Duplex Stainless Steel Seamless Tube For Chemical Process Plant from wholesalers

ASTM A789 UNS S31803 Duplex Stainless Steel Seamless Tube For Chemical Process Plant

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Brand Name:Yuhong

Model Number:ASTM A789 UNS S31803

Certification:ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008

Price:Negotiable

Payment Terms:L/C, T/T

Delivery Time:20 days

Company Data

Yuhong Group Co.,Ltd

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Contact Person Jikin Cai

Business Type: Manufacturer Distributor/Wholesaler Importer Exporter Trading Company Seller Other

Officials: 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA

Quality: Quality Certifitation Available

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Product Details Company Profile

Product Details

ASTM A789 UNS S31803 Duplex Stainless Steel Seamless Tube For Chemical Process Plant

ASME SA789 S31803 stainless steel tubing provides better pitting and crevice corrosion resistance than 316L or 317L austenitic stainless steel in almost all corrosive media. It also has high corrosion and erosion fatigue properties, as well as lower thermal expansion rates and higher thermal conductivity compared to austenitic stainless steels. The advantage of a duplex structure is that it combines the advantages of ferritic alloys, stress corrosion resistance, crack resistance, and high strength with the ease of manufacture and corrosion resistance of austenitic alloys.

Chemical Composition

Grade	C max	Si max	Mn max	P max	S max	Cr	Ni	Mo	N
UNS S32750	0.030	0.8	1.2	0.030	0.015	24.0-26.0	6.0-8.0	3.0-5.0	0.24-0.32
UNS S31803	0.030	1.0	2.0	0.020	0.020	21.0-23.0	4.5-6.5	2.5-3.5	0.08-0.20
UNS S31500	0.030	1.0	1.2-2.0	0.030	0.030	18.0-19.0	4.5-5.5	2.5-3.5	0.05-0.10

Physical Properties

Grade	Y.S.MPa min	T.S.Mpa min	Elongation %	Hardness HRC
UNS S32750	550	800	15	20
UNS S31803	450	620	25	20
UNS S31500	440	630	30	20

Heat Treatment Requirements

UNS Designation	Temperature	Quench
S31803	1870-2010 °F [1020-1100°C]	Rapid cooling in air or water
S32205	1870-2010 °F [1020-1100°C]	Rapid cooling in air or water
S31500	1800-1900 °F [980-1040°C]	Rapid cooling in air or water
S32550	1900 °F [1040°C] min.	Rapid cooling in air or water
S31200	1920-2010 °F [1050-1100°C]	Rapid cooling in water
S31260	1870-2010 °F [1020-1100°C]	Rapid cooling in water
S32001	1800-1950 °F [982-1066°C]	Rapid cooling in air or water
S32304	1700-1920 °F [925-1050°C]	Rapid cooling in air or water
S32750	1880-2060 °F [1025-1125°C]	Rapid cooling in air or water
S32760	2010-2085 °F [1100-1140°C]	Rapid cooling in air or water
S32950	1820-1880 °F [990-1025°C]	Rapid cooling in water
S32520	1975-2050 °F [1080-1120°C]	Rapid cooling in air or water

Duplex Stainless Steel Pipe Application

Chemical processing
Transport and Storage
Oil and gas exploration and offshore rigs
Oil and gas refining
Marine environments
Pollution control equipment
Pulp and paper manufacturing
Chemical process Plant

S31803 Tubes Ordering Information

Orders for product under this specification should in- clude the following, as required, to describe the desired material adequately:

Quantity (feet, metres, or number of lengths)
Name of product (seamless or welded tubes)
Grade
Size (outside diameter and average wall thickness, unless minimum wall thickness is specified)
Length (specific or random)
Special requirements

Company Profile

Yuhong Group Co.,Ltd

YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9001-2015, ISO 14001, ISO 18001, API 5L , API 5CT , API 6D, And our branch company Zhejiang Yuhongwell Steel Co.Ltd has expanded its field of activities and entered in trade and supply of tubular & flat products in Duxplex and Super Duplex, Stainless Steel, Nickel Base alloy Steel ,Cr-Mo alloy steel , Copper Nickel alloy steel,Carbon Steel for our reputed clients worldwide. These products are widely used in various important sectors like Mining, Energy, Boiler & Heat Exchanger, Petrochemical, Chemical Industry, Food plant, Paper plant, Gas and Fluid Industry etc.

YUHONG HOLDING GROUP has gained rich experience in Pipes, Fittings, Flanges, Valves, Structural steel, Coils and Plates in past eight years. In a short span of time, YUHONG brand has marked its global presence in more than 40 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand, Singapore, Malasyia, Indonesia, Thailand, Vietnam, Ukraine, Turkey,Sauid Arabia, Qatar, U.A.E,Israel,India, UK, France, Italy, Gernmany, Poland, Spain,... We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers an stockists around the world.