Stainless Steel 304 / 304L / 304H Instrumentation Fittings Manufacturer

Global Steel is an established and trusted supplier of Stainless Steel 304/304L/304H Instrumentation Fittings. Stainless Steel 304/304L/304H Instrumentation Fittings are made from premium quality materials using world-class technology. Customers can customize these fittings according to the size, dimensions, and surface finish to suit their requirements.

Table Of content

Stainless Steel 304 instrumentation fittings are made of Stainless Steel 304, which is an austenitic stainless steel. It has nickel and chromium added to its composition. Stainless Steel 304 instrumentation fittings are extremely wide and versatile and are the most widely used stainless steel instrumentation fittings. They are available in a range of size, dimensions, and finishes. They can be welded easily. They are highly resistant to corrosion and oxidation in applications requiring intermittent temperatures of up to 1600 degrees Fahrenheit.

Stainless Steel 304L Instrumentation fittings have less carbon in their composition as compared to Stainless Steel 304 Instrumentation fittings. Welding is easy due to the lower amounts of carbon. These fittings are resistant to corrosion and can withstand scaling in temperatures below 900 degrees Celsius and because of its resistance to carbide precipitation, stainless steel 304L is recommended for applications requiring continuous use at 800°F-1600°C.

Stainless Steel 304H instrumentation fittings are the higher carbon variant of Stainless Steel 304 instrumentation fittings. These fittings have high yield and tensile strength along with good creep rupture. These instrumentation fittings are perfect for use in temperatures above 932 degrees Fahrenheit and below 1400 degrees Fahrenheit. They also display resistance to corrosion in aqueous solutions.

Specification of SS 304, 304L, 304H Instrumentation Fittings

Imperial Size 1/2″ to 2″
Size 1/16”OD to 2”OD, 2mm OD to 50mm OD
Thread NPT, BSP, BSPT, UNF, ISO, SAE, MS, AN, weld ends etc.
Pressure Rating 6000PSI for Stainless Steel, 300/1000/3000PSI for Brass
Temperature Ratings Up to 1000°F (537°C)
Types Tube to Union, Tube to Male, Tube to Female, Instrument Pipe Fittings, Accessories
Application Power/ gas/ petroleum/ chemical/ metallurgy/ shipbuilding etc.
Our service
  • Nace Mr 01 75
  • Sour Service
  • Impact Test As Per Ug 84
  • Macro Structure Analysis
  • Hydrogen Induce Cracking Test (Hic)
  • Sulphide Stress Cracking Test (Sscc)
  • Cryogenic Services (Cryo),hydrogen Services (H2)
  • Helieum Leak Test
  • Dye Peniterant Test (Dp)
  • Magnetic Partius Test (Mp)
  • Post Weld Heat Treatment (Pwht)
  • Ultrasonic Test (Ut)
  • Hydro Test, Etc.
Test Certificates
  • EN 10204/3.1B
  • Raw Materials Certificate
  • 100% Radiography Test Report
  • Third Party Inspection Report, etc
Production Technique Forged/ Heat treated and machined.
Stainless Steel 304 / 304L / 304H Instrumentation Fittings

Equivalent Grades

STANDARD WERKSTOFF NR. UNS JIS BS GOST AFNOR EN
SS 304 1.4301 S30400 SUS 304 304S31 08Х18Н10 Z7CN18‐09 X5CrNi18-10
SS 304L 1.4306 / 1.4307 S30403 SUS 304L 3304S11 03Х18Н11 Z3CN18‐10 X2CrNi18-9 / X2CrNi19-11
SS 304H 1.4948 S30409 SUS 304H – – – –

Stainless Steel 304, 304L, 304H Instrumentation Fittings

Instrumentation Union

SS 304, 304L, 304H Instrumentation Union

Instrumentation Elbow

SS 304, 304L, 304H Instrumentation Elbow

SS 304, 304L, 304H Pipe Clamp

SS 304, 304L, 304H Instrumentation Tee

Instrumentation Connector

SS 304, 304L, 304H Instrumentation Connector

Instrumentation Reducer

SS 304, 304L, 304H Instrumentation Reducer

Instrumentation Cross

SS 304, 304L, 304H Instrumentation Cross

Contact us to get a quick quote for your requirement.

We offer These Stainless Steel 304 / 304L / 304L Instrumentation Fittings as per DIN, ISO, JIS or ANSI Standard.

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Available Stock

  • Stainless Steel 1.4948 Male Elbow – ME
  • 304L SS Instrumentation Fittings
  • SS 304H Instrumentation Tube Fittings
  • Stainless Steel 304 BSPP Plugs
  • 304 Stainless Steel Instrumentation Fittings
  • Stainless Steel 304 Nut
  • Stainless Steel 304L Instrumentation Fittings
  • SS 304H 45° Male Elbow – ME
  • UNS S30400 Instrumentation Fittings
  • Stainless Steel 304 Male Branch Tee-MBT
  • SS 304L Male Run Tee-MRT
  • 304H Stainless Steel Female Connector-FC
  • Stainless Steel S30400 Instrumentation Fittings
  • Type 304H SS Industrial Instrumentation Fittings
  • Stainless Steel 304 Male Stud Coupling Connector
  • Stainless Steel 304H Instrumentation Tube Fittings
  • 304 SS Bulk Head Female Connector-BFC
  • Stainless Steel 304 Female Elbow-FE
  • SS 304H Instrument Female Run Tee-FRT
  • Stainless Steel 304L Female Branch Tee-FBT
  • SS Gr 304 Instrumentation Fittings
  • UNS S30403 Stainless Steel Union-U
  • Stainless Steel 304 Coupling Reducer
  • 304 Stainless Steel Reducer Union-RU
  • SS 304H Bulk Head Union-BU
  • Grade 304 Stainless Steel Union Elbow-UE
  • INOX 304 Instrumentation Fittings
  • 304 SS Gauge Adaptor
  • 304 Stainless Steel Reducing Adaptor
  • SS 304L Instrumentation Reducer-R
  • Stainless Steel 304 Coupling Socket
  • Stainless Steel 304H Bulk Head Reducer BR
  • Stainless Steel 304 Port Connector-PC
  • 304L SS Male Adapter-MA
  • Stainless Steel 304 Female Adapter-FA
  • SS 304H Plug (Port Ends)-TP
  • SS 1.4301 Tube Socket Weld Union-TSWU
  • Stainless Steel 304H Male Pipe Weld Connector-MPWC
  • SS 304L Tube Socket Weld Elbow-TSWE
  • 304 Stainless Steel Male Pipe Weld Elbow-MPWE
  • Stainless Steel 304L Back Ferrule-BF
  • SS 304 Front Ferrule-FF
  • Stainless Steel 304H Bulk Head Male Connector
  • 304L SS Male Branch Tee
  • SS 304L Female Connector
  • Stainless Steel 304 Male Plug
  • Stainless Steel 304L Adaptor
  • SS 304H Instrumentation Tube Fittings
  • Stainless Steel 304L Instrumentation Tube Fittings
  • Stainless Steel 304H Instrumentation Fittings
  • Stainless Steel 304 Hose Nipple BSP
  • Stainless Steel 304 Female Elbow
  • SS 1.4306 Compression Tube Fittings
  • Austenitic Stainless Steel 304H Female Run Tee
  • 304 Stainless Steel Hex Long Nipple
  • SS 304L Union Cross-UC

Dimensions

METRIC RANGE Dimension in mm  
Part T P L1 M C D F G H N
N0 mmo/d   Length       Body Nut Body  
4mMC2 4 1/8′ 31.35 9.53 16.67 14.29 12 12 24.21 10.72
4mMC4 4 1/4′ 35.72 14.29 16.67 14.29 14 12 29.37 15.88
6mMC2 6 1/8′ 33.34 9.53 18.26 15.88 14 14 25.40 11.11
6mMC4 6 1/4′ 33.34 14.29 18.26 15.88 14 14 30.16 12.70
6mMC6 6 3/8′ 38.89 14.29 18.26 15.88 19 14 30.96 13.49
6mMG8 6 1/2′ 44.45 19.05 18.26 15.88 22 14 36.51 15.88
8mMC2 8 1/8′ 34.53 9.53 19.05 16.67 14 17 26.59 11.51
8mM04 8 1/4′ 39.29 14.29 19.05 16.67 14 17 31.35 13.10
10mM02 10 1/8′ 35.72 9.53 19.84 17.46 17 19 27.78 11.91
10mMC4 10 1/4′ 40.48 14.29 19.84 17.46 17 19 32.54 13.49
10mMC6 10 3/8′ 40.48 14.29 19.84 17.46 19 19 32.54 13.49
10mMC8 10 1/2′ 46.04 19.05 19.84 17.46 22 19 38.10 15.88
10mMC12 10 3/4′ 46.83 19.05 19.84 17.46 27 19 38.89 15.08
12mMC4 12 1/4′ 43.66 14.29 22.23 23.02 22 22 33.34 11.11
12mMC6 12 3/8′ 43.66 14.29 22.23 23.02 22 22 33.34 11.11
12mMC8 12 1/2′ 48.42 19.05 22.23 23.02 22 22 38.10 12.70
12mM012 12 3/4′ 49.21 19.05 22.23 23.02 27 22 38.89 11.91
16mMC6 16 3/8′ 44.45 14.29 22.23 24.61 24 27 34.13 10.32
16mMC8 16 1/2′ 49.21 19.05 22.23 24.61 24 27 38.89 11.91
16mMC12 16 3/4′ 49.21 19.05 22.23 24.61 27 27 38.89 10.32
18mMC8 18 1/2′ 50.80 19.05 22.23 24.61 27 30 40.48 13.49
18mMC12 18 3/4′ 50.80 19.05 22.23 24.61 27 30 40.48 10.32
18mMC16 18 1″ 56.36 23.81 22.23 24.61 36 30 46.40 14.29
20mMC8 20 1/2′ 50.80 19.05 22.23 24.60 27 30 40.48 13.49
20mM012 20 3/4′ 50.80 19.05 22.23 24.61 27 30 40.48 10.32
20mM016 20 1″ 56.36 23.81 22.23 14.61 36 30 46.04 14.39
25mMC12 25 3/4′ 57.15 19.05 26.19 30.96 36 41 45.24 11.91
25mMC16 25 1″ 61.91 23.81 26.19 30.96 36 41 50.01 13.49
METRIC RANGE Dimention in Inches  
Part T P L1 M C D F G H N
N0 mmo/d   Length       Body Nut Body  
1MC1 1/16 1/16 .94 .38 .44 .34 5/16 5/16 .78 .34
1MC2 1/16 1/8 1.00 .38 .44 .34 1/2 5/16 .84 .41
2MC1 1/8 1/16 1.19 .38 .63 .53 1/2 7/16 .91 .41
2MC2 1/8 1/8 1.19 .38 .63 .53 1/2 7/16 .91 .41
2MC4 1/8 1/4 1.41 .56 .63 .53 9/16 7/16 1.13 .50
3MC2 3/16 1/8 1.21 .38 .63 .54 7/16 1/2 .95 .43
3MC4 3/16 1/4 1.42 .38 .63 .54 9.16 1/2 1.16 .54
4MC1 1/4 1/16 1.29 .56 .70 .60 1/2 9/16 1.00 .46
4MC2 1/4 1/8 1.29 .56 .70 .60 1/2 9/16 1.00 .45
4MC4 1/4 1/4 1.50 .75 .72 .63 9/16 9/16 1.19 .50
4MC6 1/4 3/8 1.51 .38 .70 .60 11/16 9/16 1.19 .56
4MC8 1/4 1/2 1.73 .56 .70 .60 7/8 9/16 1.44 .67
5MC2 5/16 1/8 1.34 .38 .73 .64 9/16 5/8 1.05 .46
5MC4 5/16 1/4 1.52 .56 .73 .64 9/16 5/8 1.23 .54
6MC2 3/8 1/8 1.38 .56 .76 .66 5/8 11/16 1.09 .48
6MC4 3/8 1/4 1.57 .75 .76 .66 5/8 11/16 1.28 .57
6MC6 3/B 3/8 1.57 .75 .76 .66 11/16 11/16 1.28 .56
6MC8 3/B 1/2 1.79 .56 .76 .66 7/8 11/16 1.50 .67
6MC12 3/8 3/4 1.82 .56 .76 .66 1-1/16 11/16 1.53 .68
8MC4 1/2 1/4 1.17 .75 .86 .90 13/16 7/8 1.31 .47
8MC6 1/2 3/8 1.71 .75 .86 .90 13/16 7/8 1.31 .46
8MC8 1/2 1/2 1.90 .56 .86 .90 7/8 7/8 1.50 .54
8MC12 1/2 3/4 1.93 .75 .86 .90 1-1/16 7/8 1.53 .55
10MC6 5/8 3/8 1.74 .56 .86 .96 15/16 1 1.34 .43
10MC8 5/8 1/2 1.93 .75 .86 .96 15/16 1 1.53 .51
10MC12 5/B 3/4 1.93 .75 .86 .96 1-1/16 1 1.53 .49
12MC8 3/4 1/2 1.99 .75 .86 .96 1-1/16 1-1/8 1.59 .57
12MC12 3/4 3/4 1.99 .75 .86 .96 1-1/16 1-1/18 1.59 .55
12MC16 3/4 1 2.21 .94 .86 .96 1-3/16 1-1/8 1.81 .68
16MC12 1 3/4 2.26 .75 1.04 1.23 1-3/8 1-1/2 1.78 .55
16MC16 1 1 2.45 .94 1.04 1.23 1-3/8 1-1/2 1.97 .65

Chemical Structure

Grade C Mn Si P S Cr Mo Ni N
SS 304 0.08 max 2 max 0.75 max 0.045 max 0.030 max 18 – 20 – 8 – 11 –
SS 304L 0.035 max 2 max 1.0 max 0.045 max 0.030 max 18 – 20 – 8 – 13 –
SS 304H 0.10 max 2 max 0.75 max 0.045 max 0.03 max 18 – 20 – 8 – 10.5 –

Mechanical Properties

Grade Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
SS 304 8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %
SS 304L 8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %
SS 304H 8.0 g/cm3 1400 °C (2550 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 40 %

We Serve Application Industry

Application Industry

Instrumentation Fittings 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 Stainless Steel 304, 304L, 304H Instrumentation Fittings Across the Globe

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

Domestic Supply Stainless Steel 304, 304L, 304H Instrumentation Fittings

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

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