Duplex Steel S31803 Instrumentation Accessories

The microstructure of the duplex steel is 50/50 austenitic and ferritic, and it is designated as UNS S31803 in the unified numbering system. It is more ductile and has a higher mechanical strength. It provides better corrosion resistance in a variety of cyclic settings, from mild to high concentricity. Duplex Steel UNS S31803 Instrumentation Accessories can be used in situations with pitting and crevice corrosion.

Furthermore, these accessories can withstand stress corrosion cracking at temperatures ranging from ambient to sub-zero. As a result, Duplex Steel UNS S31803 Accessories can be used in place of normal grades where better mechanical qualities are required. There are no issues with the welding or machining of these tube fittings. Air Filter Regulators made of Duplex Steel UNS S31803 are extensively utilized in industrial, commercial, and institutional settings. The Instrumentation Valves have a range of styles and pressure classes to choose from. Pipes, valves, pumps, and other equipment are connected with these S31803 Instrumentation Tubes to form a pipeline system. Cleaning, inspection, and modification are very simple with Duplex Steel S31803 Fittings. Typically, the accessories are welded or screwed together. These Valves are fillet welded from both the inside and outside of the pipe. Duplex Steel UNS S31803 Syphon Tubes are corrosion-resistant and long-lasting. These Duplex Steel Instrumentation Syphon Tubes are available in a variety of specifications, forms, and sizes, and are commonly used in structural, mechanical, and general engineering applications.

Global Steel is a renowned producer with a global reputation for producing high-quality goods at competitive costs. Due to the premium quality of our goods, we are a leading manufacturer and supplier of Duplex Steel Instrumentation Accessories. To ensure the quality of the product, we test them and provide radiography reports, chemical testing, strength tests, and durability tests to our customers.

What is duplex uns s31803 chemical composition?

Duplex UNS S31803 is a stainless steel with a dual microstructure of austenitic and ferritic phases. It typically contains around 22% chromium, 5-6% nickel, 3% molybdenum, and 0.14-0.20% nitrogen, with the remaining composition being primarily iron. The dual-phase structure of Duplex UNS S31803 offers a combination of high strength and excellent corrosion resistance, making it suitable for use in harsh environments such as oil and gas, chemical, and petrochemical industries.

What are Instrumentation Accessories made of Duplex Steel S31803?

Instrumentation Accessories made of Duplex Steel S31803 include a range of fittings, valves, manifolds, and tubing used in process control applications such as measurement, analysis, and monitoring. These accessories are designed to provide accurate and reliable control over process variables, even in harsh environments. Duplex Steel S31803 offers high strength, excellent corrosion resistance, and resistance to pitting and crevice corrosion, making it an ideal material for instrumentation accessories used in challenging conditions.

Where are Duplex Steel S31803 Instrumentation Accessories commonly used?

Duplex Steel S31803 Instrumentation Accessories are commonly used in process control applications, such as measurement, analysis, and monitoring, in industries including oil and gas, chemical, and petrochemical. They are particularly suitable for use in harsh environments. Their high strength, excellent corrosion resistance, and resistance to pitting and crevice corrosion make them an ideal material for instrumentation accessories that must perform reliably in challenging conditions.

Specification of Duplex Steel S31803 Instrumentation Accessories

Syphon Size 1/2 inch
Condensate Pot Size Pipe size 2″, 3″, 4″, 6″ and larger size upon request.
Standard length: Pipe length 8″, 10″, 12″, and larger length upon request.
Pipe Schedule: 40, 80, 160, seamless pipe.
NPT as per ANSI B2.1 taper pipe thread?” furnished.
Socket weld as per ANSI B16.11
Butt weld as per ANSI B16.9
Working pressure: 6000 PSIG (41.34 MPa).
Snubber Size Bore sizes 3/4″ to 10″ in diameter
Travel ranges from 5″ to 20″
Load capacities from 738 lbs. to 187,900 lbs.
Pipe Clamps 1/2 – 18 Inch
Types Condensate Pot, Air Header, Pipe Clamp, Quick Release Coupling, Syphon Tube / Pipe, Pipe Clamp, Snubber, Lock Nut For O-seal, Gauge Snubber, Thermocouple, Thermowell, Gauge Adaptors, Gauge Saver, Pressure Gauge Accessories, Mini Ball Valve, Over-Pressure Protector, Cooling Tower, Adjustable Snubber
Application Power/ gas/ petroleum/ chemical/ metallurgy/ shipbuilding etc.
Air Header Size Inlet Connection Size:1/2, 3/4, 1 inch Raised Face, Female NPT, BSPT, BSPP
2″,3″ & 4″. inches
Drain Connection Type:Female NPT, BSPT, BSPP
Drain Port Size:1/2″, 3/4″, 1″
Working Pressure:6000 psi [413 bar]
Test Certificates
  • EN 10204/3.1B
  • Raw Materials Certificate
  • 100% Radiography Test Report
  • Third Party Inspection Report, etc
duplex steel s31803 instrumentation accessories

Equivalent Grades

Duplex S318031.4462S31803

Different Types

SS 304, 304L, 304H Condensate Pot

Duplex Steel S31803 Condensate Pot

SS 304, 304L, 304H Pipe Clamp

Duplex Steel S31803 Pipe Clamp

SS 304, 304L, 304H Air Headers

Duplex Steel S31803 Air Headers

SS 304, 304L, 304H Mini Ball Valve

Duplex Steel S31803 Mini Ball Valve

SS 304, 304L, 304H Snubber

Duplex Steel S31803 Snubber

SS 304, 304L, 304H Quick Release Couplings

Duplex Steel S31803 Quick Release Couplings

Contact us to get a quick quote for your requirement.

We offer These Duplex Steel S31803 Instrumentation Accessories as per DIN, ISO, JIS or ANSI Standard.

Available Stock

  • Duplex Steel S31803 Pressure Gauge
  • DSS S31803 Temperature Gauge
  • DSS S31803 Air Headers
  • DSS S31803 Gauge Adaptors
  • Duplex Stainless Steel S31803 Needle Valve
  • Duplex S31803 Thermowell
  • Type S31803 DSS Industrial Flare End Fittings
  • S31803 Duplex Steel Gauge Saver
  • Duplex Steel S31803 Positionable Lock Nut
  • Duplex S31803 Lock Nut For O-seal
  • Duplex Steel S31803 Gauge Union
  • Duplex S31803 Over-Pressure Protector
  • DSS S31803 Ferrule Pack
  • Duplex Steel S31803 Adjustable Snubber
  • DSS S31803 Instrument Accessories
  • UNS S31803 Duplex Steel Mini Ball Valve
  • S31803 Duplex Syphon
  • Grade S31803 Duplex Steel Snubber
  • Duplex Steel S31803 Flushing Ring
  • DSS 1.4462 Gauge Union
  • DSS S31803 SAS Adjustable Snubber
  • Duplex S31803 STP Test Plug
  • Duplex Steel S31803 SCT Cooling Tower
  • S31803 Duplex Hose Fittings
  • Duplex Steel S31803 Gauge Snubber
  • Duplex Steel S31803 MVA 3 & 5 Handle Manifold Valves
  • Suppliers of S31803 Duplex Steel Pressure Gauge Accessories
  • DSS S31803 Ferrule & Single Ferrule Tube Fittings
  • S31803 DSS SNV Needle Valve
  • Duplex S31803 Test Plug
  • Duplex S31803 Valves & Pump Components
  • DSS S31803 SSN Snubber
  • Duplex Steel S31803 Fir Isolation Ring Tees
  • Duplex Steel S31803 Gauge Adaptors
  • S31803 Duplex Steel BBV Double Block & Bleed Valve
  • Duplex Steel S31803 Pressure Gauge Syphons
  • DSS S31803 Manifold & Parts

Chemical Structure

S318030.030 max2.00 max1.00 max0.030 max0.020 max22.0 – 23.03.00 – 3.504.50 – 6.500.14 – 0.2063.72 min

Mechanical Properties

GradesDensity (g/cm 3)Density (lb/in 3)Melting Point (°C)Melting Point (°F)
S318037.8050.2851420 – 14652588 – 2669

We Serve Application Industry

Application Industry

Instrumentation Accessories applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.

Oil & Gas Industry

Petrochemical Industry

Power Generation Industry

Chemical Industry

We Export Duplex Steel S31803 Instrumentation Accessories Across the Globe

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

Domestic Supply Duplex Steel S31803 Instrumentation Accessories

Jaipur, Noida, Pune, Navi Mumbai, Thane, Hyderabad, Visakhapatnam, Ludhiana, Secunderabad, Haryana, Bengaluru, Gurgaon, Ahmedabad, mumbai, Faridabad, Chennai, Surat, Nashik, Howrah, New Delhi, Indore, Pimpri-Chinchwad, Jamshedpur, Ernakulam , Kanpur, Kolkata, Thiruvananthapuram, Nagpur, Ranchi, Rajkot, Bhopal, Chandigarh.

Global Steelindia

Global Steel is a significant manufacturer and exporter of all ferrous and non-ferrous metals. As a pioneer and leader in the industry, Global Steel is at the forefront of technology and research.

Quick Contact

Shop No.6, Sonarika Bldg, 25/C, Chandawadi, Cawasji Patel Tank, Mumbai, Maharashtra 400004