ASTM A182 Stainless Steel 347/347H Flanges

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ASME / ANSI B16.5 SS 347/347H Flanges Manufacturer, UNS S34700 Weld Neck Flange, UNS S34709 Slip-on Flange, WNR 1.4550 Lap Joint Flange, WNR 1.4961 Blind Flange

Stainless steel 347 and 347H are two variations of the same material, but with slightly different chemical compositions and properties.

Stainless steel 347 contains higher amounts of niobium and tantalum, which provides improved intergranular corrosion resistance and better high-temperature strength than stainless steel 304 and 316.

Stainless steel 347H is a high carbon version of 347 that is specifically designed for high-temperature applications. It has similar properties to 347, but with increased strength and higher temperature resistance due to its higher carbon content.

When it comes to flanges, both 347 and 347H can be used in similar applications, but the choice depends on the specific requirements of the project. Stainless steel 347 flanges are suitable for applications where moderate temperature and corrosion resistance are required. On the other hand, stainless steel 347H flanges are recommended for high-temperature applications where greater strength and higher resistance to creep are needed.

Overall, both stainless steel 347 and 347H flanges are high-quality, durable, and corrosion-resistant options for a wide range of industrial applications. The choice between the two depends on the specific requirements of the project, and it’s important to consult with a materials engineer to determine which one is the best fit for the job.

ASTM A182 Stainless Steel 347/347H Flange, SS 347/347H Flange

ASTM A182 Stainless Steel 347 RTJ Flange, PN10 PN16 Stainless Steel 347H Threaded Flange, Table D & Table E F347 Spectacle Blind Flange, ANSI 150 F347H Socket Weld Flange at the Lowest Prices

Q: What is the difference between 347 and 347H stainless steel?
A: The primary difference between 347 and 347H stainless steel lies in their carbon content. Stainless Steel 347 contains a lower carbon content, typically around 0.08%, while Stainless Steel 347H has a higher carbon content, generally ranging from 0.04% to 0.10%. The higher carbon content of 347H provides improved high-temperature strength and creep resistance compared to 347.

Q: What is 347H stainless steel?
A: Stainless Steel 347H is a high-carbon modification of Stainless Steel 347. It is an austenitic stainless steel alloy that offers enhanced high-temperature strength and excellent resistance to corrosion. The higher carbon content in 347H promotes greater toughness and improved creep resistance, making it suitable for applications involving elevated temperatures.

Q: What is stainless steel 347 equivalent to?
A: Stainless Steel 347 has several equivalents, including AISI 347, UNS S34700, and EN 1.4550. These designations are different ways to refer to the same stainless steel grade. Equivalent grades from different standards ensure compatibility and interchangeability of materials for various applications.

Q: Does 347 stainless steel rust?
A: Stainless Steel 347 is highly resistant to rust and corrosion. It belongs to the austenitic stainless steel family, which is known for its excellent corrosion resistance properties. However, it is essential to note that no stainless steel is completely immune to corrosion in all conditions. Proper maintenance and protection should be considered to maximize the longevity and corrosion resistance of 347 stainless steel.

Q: What is the difference between 304 and 347 stainless steel?
A: The main differences between 304 and 347 stainless steel lie in their composition and properties. Stainless Steel 304 is an austenitic stainless steel with a lower carbon content than 347. It offers excellent corrosion resistance and is widely used in various applications. On the other hand, Stainless Steel 347 contains niobium (columbium) and tantalum as stabilizing elements, which provide improved high-temperature strength and resistance to sensitization. 347 is particularly suitable for high-temperature environments, such as in the presence of carbide precipitation.

Stainless Steel 347/347H Flange Specifications

Size Range

1/2″ (15 NB) to 48″ (1200NB)

Class / Pressure Rating

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Standards / Dimensions

ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO 70051, JIS B2220, BS1560-3.1, API7S-15, API7S-43, API605

Connection Type

Ring Joint Flange (RTJ), Flat Face Flange (FF), Raised Face Flange (RF), Male and Female Flange (M & F), Lap Joint Flange, Large and Small Tongue-and-Groove Flange (T & G)

Material Standards

ASTM A182 / ASME SA182

ASTM A182 Stainless Steel 347/347H Flanges Equivalent Grade

STANDARDWERKSTOFF NR.UNSJISGOSTEN
SS 3471.4550S34700SUS 34708Ch18N12BX6CrNiNb18-10
SS 347H1.4961S34709SUS 347HX6CrNiNb18-12

ASTM A182 SS Grade F347/F347H Flanges Chemical Composition

GradeCMnSiPSCrCbNiFe
SS 3470.08 max2.0 max1.0 max0.045 max0.030 max17.00 – 20.0010xC – 1.109.00 – 13.0062.74 min
SS 347H0.04 – 0.102.0 max1.0 max0.045 max0.030 max17.00 – 19.008xC – 1.109.0 – 13.063.72 min

ASME SA182 Stainless Steel 347/347H Flanges Mechanical Properties

ElementDensityMelting PointTensile StrengthYield Strength (0.2%Offset)Elongation
347/347H8.0 g/cm31454 °C (2650 °F)Psi – 75000 , MPa – 515Psi – 30000 , MPa – 20535 %

Find the largest ready stock of  Class 300#, 600#, 900#, 1500#, 2500# Stainless Steel 347/347H Flanges, ASTM A182 F347 Stub End Flanges, Steel 347 Spectacle Blind Flanges, SS 347H RTJ Flanges, DIN 1.4961 BLRF Flanges, ANSI 150, Table D Stainless Steel 347 Flange, Series A & B SS 347 Flange, ASTM A182 F347 Lap Joint Flange,  Stainless Steel 347/347H Paddle Blind Flanges, SS 347 Spectacle Blind Flanges, UNS S34700 / S34709 Expander Flanges, DIN 1.4550 Backing Ring Flanges, SS 347/347H SORF Flanges in Mumbai, India.

ASTM A182 Stainless Steel 347/347H Flanges Dimensions

NPSO.D. of FlangeFlanges ThicknessDiameter of RFDiameter of Hub at BaseLengtd Tdru HubBore or DiameterDia. of Hub at BevelRadius of FilletDeptd of Socket
Welding (WN) NeckSlip-On (SORF) Threaded (NPT) Socket (SWRF)Lap Joint (Loose)Slip-on (SORF) Socket (SWRF)Lap Joint (Loose)
OQRXYYYWBHrZ
1/23-1/27/161-3/81-3/161-7/85/85/8.88.90.841/83/8
3/43-7/81/21-11/161-1/22-1/165/85/81.091.111.051/87/16
14-1/49/1621-15/162-3/1611/1611/161.361.381.321/81/2
1-1/44-5/85/82-1/22-5/162-1/413/1613/161.701.721.663/169/16
1-1/2511/162-7/82-9/162-7/167/87/81.951.971.901/45/8
263/43-5/83-1/162-1/2112.442.462.385/1611/16
2-1/277/84-1/83-9/162-3/41-1/81-1/82.942.972.885/163/4
37-1/215/1654-1/42-3/41-3/161-3/163.573.603.503/813/16
3-1/28-1/215/165-1/24-13/162-13/161-1/41-1/44.074.104.003/87/8
4915/166-3/165-5/1631-5/161-5/164.574.604.507/1615/16
51015/167.5/166-7/163-1/21-7/161-7/165.665.695.567/1615/16
61118-1/27-9/163-1/21-9/161-9/166.726.756.631/21-1/16
813-1/21-1/810-5/89-11/1641-3/41-3/48.728.758.631/21-1/4
10161-3/1612-3/41241-15/161-15/1610.8810.9210.751/21-5/16
12191-1/41514-3/84-1/22-3/162-3/1612.8812.9212.751/21-9/16
14211-3/816-1/415-3/452-1/43-1/814.1414.1814.001/21-5/8
1623-1/21-7/1618-1/21852-1/23-7/1616.1616.1916.001/21-3/4
18251-9/162119-7/85-1/22-11/163-13/1618.1818.2018.001/21-15/16
2027-1/21-11/1623225-11/162-7/84-1/1620.2020.2520.001/22-1/8
24321-7/827-1/426-1/863-1/44-3/824.2524.2524.001/22-1/2

ASTM A182 SS 347/347H Flanges Weight Chart

ASTM A182 Stainless Steel 347/347H Flanges Class 150
NOMINAL SIZEDIMENSIONSWEIGHT (KG)
NPS
(Inches)
DN (mm)FLANGE
MM
FLANGE
THICKNESS
SOW
SW
WNBLIND
1/21588.911.20.40.50.4
3/42098.612.70.60.70.6
12510814.20.810.9
1 1/432117.315.711.31.2
1 1/24012717.51.31.71.5
250152.419.12.12.62.4
2 1/265177.822.43.34.13.9
380190.523.93.94.94.9
3 1/290215.923.94.86.16.2
4100228.623.95.36.87.0
512525423.96.18.68.6
6150279.425.47.510.611.3
8200342.928.412.117.619.6
10250406.430.216.52428.6
12300482.631.826.236.543.2
14350533.435.134.648.458.1
16400596.936.644.860.676.1
1845063539.648.968.393.7
20500698.542.961.984.5122.0
24600812.847.886.9115185.0

Stainless Steel 347/347H Class 300 Flanges Weight Chart

ASTM A182 Stainless Steel 347/347H Flanges Class 300
NOMINAL SIZEDIMENSIONSWEIGHT (KG)
NPS
(Inches)
DN (mm)FLANGE
OD
A
MM
FLANGE
THICKNESS
D
MM
SOW
SW
WNBLIND
1/21595.314.20.60.80.6
3/420117.315.71.11.31.1
12512417.51.41.51.4
1 1/432133.419.11.72.01.8
1 1/240155.520.62.52.92.7
250165.122.42.93.43.2
2 1/265190.525.44.35.24.9
380215.928.45.96.96.8
3 1/290228.630.27.38.78.7
410025431.89.611.211.5
5125279.435.112.315.115.6
6150317.536.615.619.120.9
820038141.124.229.934.3
10250444.547.634.142.753.3
12300520.750.849.861.878.8
14350584.253.869.985.8105.0
16400647.757.288.1106.0137.0
18450711.260.5109.0131.0175.0
20500774.763.5134.0158.0221.0
24600914.470.0201.0230.0339.0

Stainless Steel 347/347H Flanges Class 300 Weight Chart

ASTM A182 Stainless Steel 347/347H Flanges Class 600
NOMINAL SIZEDIMENSIONSWEIGHT (KG)
NPS
(Inches)
DN (mm)FLANGE
OD
A
MM
FLANGE
THICKNESS
D
MM
SOW
SW
WNBLIND
1/21595.314.20.70.90.8
3/420117.315.71.31.51.3
125124.017.51.51.81.6
1 1/432133.420.622.52.2
1 1/240155.422.433.53.3
250165.125.43.64.44.2
2 1/265190.528.45.36.46.1
380209.631.878.58.4
3 1/290228.635.18.810.711
4100273.138.114.517.417.3
5125330.244.524.429.229.4
6150355.647.828.734.936.1
8200419.155.643.453.958.9
1025050863.570.386.597.5
12300558.866.584.2103.0124
14350603.369.998.7122.0151
16400685.876.2142.0170.0214
1845074382.6173.0204.0272
20500812.888.9220.0254.0349.0
24600939.8101.6312.0358.0533.0

Stainless Steel 347/347H Class 900 Flanges Weight Chart

ASTM A182 Stainless Steel 347/347H Pipe Flanges Class 900
NOMINAL SIZEDIMENSIONSWEIGHT (KG)
NPS
(Inches)
DN (mm)FLANGE
OD
A
MM
FLANGE
THICKNESS
D
MM
SOW
SW
WNBLIND
1/215120.722.41.81.91.8
3/42013025.42.42.62.4
125149.428.43.63.73.6
1 1/432158.828.444.34.1
1 1/240177.831.85.55.95.8
250215.938.110.210.810
2 1/265244.341.113.91514
380241.338.111.613.713.1
4100292.144.519.722.526.9
5125349.350.831.937.436.5
615038155.641.147.747.4
8200469.963.570.781.382.5
10250546.169.9101.0119122.0
12300609.679.2133.0157.0173.0
14350641.485.6153.0180.0206.0
16400704.988.9185.0217.0259.0
18450787.4101.6258.0292.0367.0
20500857.3108.0317.0362.0463.0
246001041.4139.7606.0665.0876.0

Stainless Steel 347/347H Flanges Class 1500 Weight Chart

ASTM A182 Stainless Steel 347/347H Flanges Class 1500
NOMINAL SIZEDIMENSIONSWEIGHT (KG)
NPS
(Inches)
DN (mm)FLANGE
OD
A
MM
FLANGE
THICKNESS
D
MM
SOW
SW
WNBLIND
1/215120.722.41.81.91.8
3/42013025.42.42.62.4
125149.428.43.63.73.6
1 1/432158.828.444.34.1
1 1/240177.831.85.55.95.8
250215.938.110.210.810.1
2 1/265244.341.113.91514
380266.747.8 19.919.1
4100311.253.8 29.929.9
5125374.773.2 55.458.4
6150393.782.6 68.471.8
8200482.691.9 117122
10250584.2108 194.0210.0
12300673.1124 288.0316.0
14350749.3133.4 380.0420
16400825.5146.1 485.0558.0
18450914.4162.1 644.0760.0
20500984.3177.8 775.0965.0
246001168.4203.2 1232.01558.0

Stainless Steel 347/347H Class 2500 Flanges Weight Chart

ASTM A182 Stainless Steel 347/347H Flanges Class 2500
NOMINAL SIZEDIMENSIONSWEIGHT (KG)
NPS
(Inches)
DN (mm)FLANGE
OD
A
MM
FLANGE
THICKNESS
D
MM
WNBLIND
1/215133.430.23.13.0
3/420139.731.83.73.5
125158.835.15.25.0
1 1/432184.238.17.77.4
1 1/240203.244.510.910.4
25023550.816.215.6
2 1/265266.757.223.722.6
380304.866.536.234.8
4100355.676.255.353.9
5125419.191.992.590.8
6150482.6108143.0141
8200552.5127215.0214
10250673.1165.1406.0411.0
12300762184.2572.0592.0

Stainless Steel 347/347H Flanges Schedule / Class

Flange Schedule/ClassPipe Size – Pipe FlangesFlange Connection TypeFlange MaterialMax. Pressure
ASME B16.5 Class 1501/2″FNPTStainless Steel 347/347H Flanges150 psi
ASME B16.5 Class 1501/2″Socket Weld275 psi
ASME B16.5 Class 1501/2″Welded150 psi
ASME B16.5 Class 1503/4″FNPT150 psi
ASME B16.5 Class 1503/4″Socket Weld275 psi
ASME B16.5 Class 1501-1/4″Socket Weld275 psi
ASME B16.5 Class 1501-1/2″Socket Weld275 psi
ASME B16.5 Class 1502″FNPT150 psi
ASME B16.5 Class 1502″Socket Weld275 psi
ASME B16.5 Class 1502-1/2″Socket Weld275 psi
ASME B16.5 Class 1503″Socket Weld275 psi
ASME B16.5 Class 1504″FNPT150 psi
ASME B16.5 Class 1504″Socket Weld275 psi
ASME B16.5 Class 3001/2″Slip On720 psi
ASME B16.5 Class 3001/2″Slip On720 psi
ASME B16.5 Class 3001″Slip On720 psi
ASME B16.5 Class 3001″Slip On720 psi
ASME B16.5 Class 3001-1/4″FNPT720 psi
ASME B16.5 Class 3001-1/4″Slip On720 psi
ASME B16.5 Class 3001-1/2″Slip On720 psi
ASME B16.5 Class 3001-1/2″Slip On720 psi
ASME B16.5 Class 3002″Slip On720 psi
ASME B16.5 Class 3002″Slip On720 psi
ASME B16.5 Class 3002-1/2″Slip On720 psi
ASME B16.5 Class 3002-1/2″Slip On720 psi
ASME B16.5 Class 3003″Slip On720 psi
ASME B16.5 Class 3003″Slip On720 psi
ASME B16.5 Class 3004″Slip On720 psi
ASME B16.5 Class 3004″Slip On720 psi

Stainless Steel Grade F347/F347H Flanges Standard

American Steel Flanges Standard
Standard CodeStandard Name
ANSI ASME SA-182Forged Flanges
ANSI ASME B16.5Slip on flange, Welding neck flange, Blind flange, Threaded flange, Lap joint flange, RTJ flange
ASME – B 16.47Welding neck flange, Blind flange
ASME – B 16.36Welding neck flange Slip on flange
German Steel Flanges Standard
DIN 2527Steel Blind Flanges, BLRF
DIN 2573 / 2576Flat Flange for Welding (Slip On)
DIN 2673Loose Flanges and Rings for Welding (Slip On Flanges and Plain Collars)
DIN 2641 / 2642Lapped / Loose (Lap Joint) Flanges Plain Collars
DIN 28115Long Neck Welding Flanges
DIN PN10, PN16SS 347 PN10 Flanges, 347H SS DIN PN 10 Flanges, 347 SS PN16 Flange
DIN PN20, PN25SS 347 PN20 Flanges, 347H SS DIN PN 25 Flanges
DIN PN40, PN50SS 347 PN40 Flanges, 3167L SS DIN PN 50 Flanges
Japanese Steel Flanges Standard
JIS B2220Slipon plate flange (SOP), Slipon Hub (SOH), Socket Welding flange (SW), Welding neck flange (WN), Lapjoint (LJ), Threaded flange (TR)/ Itegral flange (IT) Blank flange (BL)
JIS B2291Slipon plate flange (SOP), Slipon Hub (SOH), Socket Welding flange (SW), Welding neck flange (WN), Lapjoint (LJ), Threaded flange (TR)/ Itegral flange (IT) Blank flange (BL)
JIS 5K, 10KSS 347 5K SORF Flanges, 347H SS 10K SOFF Flanges
JIS 16K, 20KSS 347 16K Blind Flanges, 347H SS 20K BLRF Flanges
JIS 30K, 40KSS 347 30K Slip on Flanges, 347H SS 40K Blind Flanges
Italian Flanges Standard
UNI FLANGESPlan flanges (2276, 2277, 2278, 6083, 6084) Welding neck (2280, 2281, 2282, 2283, 2284, 2285, 2286) Lapped flanges (6088, 6089, 6090, 2999, 2300) Blind flanges (6091, 6092, 6093, 6094, 6095, 6096, 6097) threaded flanges (2253, 2254)
British Standard Pipe Flanges Standard
BS 10 Table DSS 347 BS 10 Table D Flanges, 347H Table D Pipe Flange
BS 10 Table ESS 347 BS 10 Table E Flanges, 347H Table E Pipe Flange
BS 10 Table FSS 347 BS 10 Table E Flanges, 347H Stainless Steel Table E Flanges
BS 10 Table HSS 347 BS 10 Table E Flanges, Stainless Steel 347H Table E Pipe Flanges

Best quality Stainless Steel 347/347H Flanges, EN X6CrNiNb18-10 Flange,  ASTM A182 F347 Stub End Flanges, Steel 347 Tongue & Groove Flanges, 347H SS RTJ Flanges, SS 1.4550 BLRF Flanges, ANSI 150, Table D & Table E Stainless Steel 347h Flange, Series A & B SS 347 Flange, ASTM A182 F347/347H Lap Joint Flange, EN X6CrNiNb18-12 Reducing Flanges, SS 347 Orifice Flange, PN10 PN16 SS 347/347H BLRF Flanges Supplier,  UNS S34700 Lap Joint Flanges Supplier, UNS S34709 Screwed Flanges, SS 347 Socket weld Flanges, Stainless Steel 347 High Hub Blinds Flanges, SS 347H Flat Flange, DIN 1.4961 SOFF Flanges, Stainless Steel 347 Threaded Flange.

Stainless Steel 347/347H Flanges Applications

Australia, Afghanistan, Algeria, Angola, Argentina, Armenia, Azerbaijan, Bahrain, Bangladesh, Benin,
Bhutan, Botswana, Brazil, Brunei, Burkina Faso, Cambodia, Cameroon, Canada, Central Africa Republic,
Chad, Chile, Colombia, Cuba, Cyprus, DRC, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini,
Ethiopia, Fiji, Finland, France, Georgia, Germany, Ghana, Greece, Hungary, Iceland, Indonesia, Iran,
Iraq, Ireland, Israel, Italy, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Kyrgyzstan, Laos, Lebanon,
Lesotho, Liberia, Libya, Lithuania, Madagascar, Malawi, Malaysia, Maldives, Mali, Mexico, Morocco,
Mozambique, Mauritania, Myanmar, Namibia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Oman,
Panama, Peru, Philippines, Poland, Portugal, Palestine, Qatar, Russia, Rwanda, Romania, Saudi Arabia,
Senegal, Sierra Leone, Singapore, Slovakia, Somalia, South Africa, South Korea, South Sudan, Spain,
Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Tasmania, Thailand, The Gambia,
Timor-Leste, Togo, Tunisia, Turkey, Turkiye, Turkmenistan, Uganda, Uzbekistan, United Arab Emirates (UAE),
United Kingdom (UK), United States (US), Venezuela, Vietnam, Yemen, Zambia, Zimbabwe

Abu Dhabi, Amsterdam, Abuja, Accra, Addis Ababa, Ahmedabad, Algiers, Amman, Ankara, Antananarivo,
Ashgabat, Asmara, Astana, Athens, Baghdad, Baku, Bamako, Bandar Seri Begawan, Bangkok, Bangui,
Banjul, Beirut, Bengaluru, Berlin, Bishkek, Bloemfontein, Bogotá, Bern, Brasília, Bratislava,
Bucharest, Budapest, Buenos Aires, Cairo, Canberra, Cape Town, Caracas, Chennai, Coimbatore, Dakar,
Damascus, Dhaka, Dili, Djibouti city, Dodoma, Doha, Dublin, Dushanbe, Freetown, Gaborone, Ghaziabad,
Guwahati, Hanoi, Harare, Havana, Helsinki, Hobart, Hyderabad, Indore, Jaipur, Jakarta, Jerusalem,
Juba, Jurong East, Kabul, Kampala, Kanpur, Kathmandu, Kigali, Kinshasa, Kochi, Kolkata, Kuala Lumpur,
Kuwait City, Lisbon, Lilongwe, Lima, Lobamba, Lomé, London, Luanda, Lucknow, Lusaka, Malabo, Madrid,
Malé, Mexico City, Manama, Moscow, Manila, Maputo, Maseru, Mbabane, Mogadishu, Monrovia, Mumabi,
Muscat, Nagpur, Nairobi, New Delhi, Niamey, Nicosia, Noida, Nouakchott, N’Djamena, Oslo, Ottawa,
Ouagadougou, Panama City, Paris, Patna, Phnom Penh, Porto-Novo, Pretoria, Pune, Rabat, Reykjavík,
Riyadh, Rome, Sana’a, Santiago, Sri Jayawardenepura Kotte, Stockholm, Seoul, Singapore, Surat,
Suva, Taipei City, Tashkent, Tokyo, Tbilisi, Tehran, Thimphu, Tripoli, Tunis, Vientiane, Vilnius,
Visakhapatnam, Warsaw, Washington D.C., Wellington, Windhoek, Yaoundé, Yerevan, Naypyidaw

Stainless Steel 347/347H Flanges Price

Omaa Metal Sources is ASME B16.5 ASTM A182 Stainless Steel 347/347H Flanges Exporters and Suppliers in the US, UK, South Africa, Saudi Arabia, Singapore, UAE, Oman, South Korea, Turkey, Bahrain, Malaysia, Philippines, Thailand, Norway, Indonesia, Iraq, Yemen, Bangladesh, Nigeria, Egypt, Peru, Ghana, Morocco, Etc.

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