SLIP ON FLANGES / SORF / RFSO / SOFF / FFSO
Slip On Flanges are connected to a pipe by one or two welds. These RFSO flanges have a hub with a very low profile. These FFSO flanges are widely used in low pressure applications.
These RFSO flanges are slipped onto the pipe as the bore size of the flange is larger than that of the connecting pipe. This leads to limitations for its usage due to lower weld integrity as there is no full penetration weld between the flange and the pipe.
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Advantages of slip on flanges:
- Less skill required for welding of the flange with the pipe
- Cost effective as compared to other type of flanges
- lower accuracy acceptable for pipe cutting
- Easy to install
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Disadvantages of slip on flanges:
- Some NDT tests are not performable on welds
- reduced mechanical strength as weld neck flanges are 30% stronger
- not advised for use over ASME class 600
- unsuitable for cyclic loading
- Use of two welds for each flange
DIMENSIONAL STANDARDS
Slip On Flanges are available in the following standards:​
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1] ASME / ANSI Slip On Flanges
1.1) SORF ASME / ANSI B16.5 #150
1.2) SORF ASME / ANSI B16.5 #300
1.3) SORF ASME / ANSI B16.5 #400
1.4) SORF ASME / ANSI B16.5 #600​
1.5) SORF ASME / ANSI B16.5 #900
1.6) SORF ASME / ANSI B16.5 #1500
1.7) SORF ASME / ANSI B16.1 #125
1.8) SORF ASME / ANSI B16.1 #250​
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2] EN1092-1 Type 01 Slip On Flanges
2.1) EN 1092-1 Type 01 PN 2.5 Slip On Flanges
2.2) EN 1092-1 Type 01 PN 6 Slip On Flanges
2.3) EN 1092-1 Type 01 PN 10 Slip On Flanges
2.4) EN 1092-1 Type 01 PN 16 Slip On Flanges
2.5) EN 1092-1 Type 01 PN 25 Slip On Flanges
2.6) EN 1092-1 Type 01 PN 40 Slip On Flanges
2.7) EN 1092-1 Type 01 PN 63 Slip On Flanges
2.8) EN 1092-1 Type 01 PN 100 Slip On Flanges
2.9) EN 1092-1 Type 01 PN 160 Slip On Flanges
2.10) EN 1092-1 Type 01 PN 250 Slip On Flanges
2.11) EN 1092-1 Type 01 PN 320 Slip On Flanges
2.12) EN 1092-1 Type 01 PN 400 Slip On Flanges
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3] EN1092-1 Type 12 Slip On Flanges
3.1) EN 1092-1 Type 12 PN 2.5 Slip On Flanges
3.2) EN 1092-1 Type 12 PN 6 Slip On Flanges
3.3) EN 1092-1 Type 12 PN 10 Slip On Flanges
3.4) EN 1092-1 Type 12 PN 16 Slip On Flanges
3.5) EN 1092-1 Type 12 PN 25 Slip On Flanges
3.6) EN 1092-1 Type 12 PN 40 Slip On Flanges
3.7) EN 1092-1 Type 12 PN 63 Slip On Flanges
3.8) EN 1092-1 Type 12 PN 100 Slip On Flanges
3.9) EN 1092-1 Type 12 PN 160 Slip On Flanges
3.10) EN 1092-1 Type 12 PN 250 Slip On Flanges
3.11) EN 1092-1 Type 12 PN 320 Slip On Flanges
3.12) EN 1092-1 Type 12 PN 400 Slip On Flanges
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4] DIN Slip On Flanges
4.1) DIN 2573 PN 6 Slip On Flange
4.2) DIN 2576 PN 10 Slip On Flange
4.3) DIN 2501 PN 10 Slip On Flange
4.4) DIN 2501 PN 16 Slip On Flange
4.5) DIN 2502 PN 16 Slip On Flange
4.6) DIN 2503 PN 25 Slip On Flange
4.7) DIN 2503 PN 40 Slip On Flange
4.8) DIN 2543 PN 16 Slip On Flange
4.9) DIN 2641 PN 6 Slip On Flange
4.10) DIN 2642 PN 10 Slip On Flange
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5] BS Slip On Flanges
5.1) BS4504 Slip On Flange
5.2) BS3293 Class 150 Slip On Flange
5.3) BS3293 Class 300 Slip On Flange
5.4) BS3293 Class 400 Slip On Flange
5.5) BS3293 Class 600 Slip On Flange
5.6) BS 10 Table D Slip On Flange
5.7) BS 10 Table E Slip On Flange
5.8) BS 10 Table F Slip On Flange
5.9) BS 10 Table H Slip On Flange​
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6] AS 2129 / AS 4087 Slip On Flanges
6.1) Australian Standard AS 2129 Table D Slip On Flange
6.2) Australian Standard AS 2129 Table E Slip On Flange
6.3) Australian Standard AS 2129 Table F Slip On Flange
6.4) Australian Standard AS 2129 Table H Slip On Flange
6.5) Australian Standard AS 2129 Table J Slip On Flange
6.6) Australian Standard AS 2129 Table K Slip On Flange
6.7) Australian Standard AS 2129 Table R Slip On Flange
6.8) Australian Standard AS 2129 Table S Slip On Flange
6.9) Australian Standard AS 2129 Table T Blind Flange
6.10) Australian Standard AS 4087 PN 16 Slip On Flange
6.11) Australian Standard AS 4087 PN 21 Slip On Flange
6.12) Australian Standard AS 4087 PN 35 Slip On Flange​
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7] SANS/SABS SLIP ON FLANGE
7.1) SABS 1123 Class 600 Slip On Flange
7.2) SABS 1123 Class 1000 Slip On Flange
7.3) SABS 1123 Class 1600 Slip On Flange
7.4) SABS 1123 Class 2500 Slip On Flange
7.5) SABS 1123 Class 4000 Slip On Flange
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​8] AWWA C207-07 SLIP ON FLANGE
8.1) AWWA C207-07 Ring Type Class B Slip On Flange
8.2) AWWA C207-07 Ring Type Class D Slip On Flange
8.3) AWWA C207-07 Ring Type Class E Slip On Flange
8.4) AWWA C207-07 Ring Type Class F Slip On Flange
8.5) AWWA C207-07 Hub Type Class B Slip On Flange
8.6) AWWA C207-07 Hub Type Class D Slip On Flange
8.7) AWWA C207-07 Hub Type Class E Slip On Flange
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9] JIS SLIP ON FLANGE
9.1) JIS 2K Slip On Flange
9.2) JIS 5K Slip On Flange
9.3) JIS 10K Slip On Flange
9.4) JIS 16K Slip On Flange
9.5) JIS 20K Slip On Flange
9.6) JIS 30K Slip On Flange
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10] NFE 29203 SLIP ON FLANGE
9.1) NFE 29203 Type 01 PN 2.5 Slip On Flange
9.2) NFE 29203 Type 01 PN 6 Slip On Flange
9.3) NFE 29203 Type 01 PN 10 Slip On Flange
9.4) NFE 29203 Type 01 PN 16 Slip On Flange
9.5) NFE 29203 Type 02 PN 6 Slip On Flange
9.6) NFE 29203 Type 02 PN 10 Slip On Flange
9.7) NFE 29203 Type 02 PN 16 Slip On Flange
9.8) NFE 29203 Type 02 PN 25 Slip On Flange
9.9) NFE 29203 Type 02 PN 40 Slip On Flange
9.10) NFE 29203 Type 03 PN 6 Slip On Flange
9.11) NFE 29203 Type 03 PN 10 Slip On Flange
9.12) NFE 29203 Type 03 PN 16 Slip On Flange
9.13) NFE 29203 Type 03 PN 25 Slip On Flange
9.14) NFE 29203 Type 03 PN 40 Slip On Flange
9.15) NFE 29203 Type 04 PN 10 Slip On Flange
9.16) NFE 29203 Type 04 PN 16 Slip On Flange
9.17) NFE 29203 Type 04 PN 25 Slip On Flange
9.18) NFE 29203 Type 04 PN 40 Slip On Flange
AVAILABLE MATERIALS
Slip On Flanges are available in the following materials:​​
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Stainless Steel Grades:
304: ASTM A182 F 304 / SS304 / 1.4301 / S30400 Slip On / SORF / SOFF flanges ​
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316: ASTM A182 F 316 / SS316 / 1.4401 / S31600 Slip On / SORF / SOFF flanges
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309: ASTM A182 F 309 / SS309 / 1.4828 / S30900 Slip On / SORF / SOFF flanges
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310: ASTM A182 F 310 / SS310 / 1.4845 / S31000 Slip On / SORF / SOFF flanges​
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317L: ASTM A182 F 317L / SS317L / 1.4438 / S31700 Slip On / SORF / SOFF flanges
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321: ASTM A182 F 321 / SS321 / 1.4878 / S32100 Slip On / SORF / SOFF flanges
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347: ASTM A182 F 347 / SS347 / 1.4961 / S34700 Slip On / SORF / SOFF flanges
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904L: ASTM A182 F 904L / SS904L / 1.4539 / N08904 Slip On / SORF / SOFF Flanges
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Duplex Steel Grades:
F 51: ASTM A182 F51 / SAF 2205 Duplex / 1.4462 / S31803 Slip On / SORF / SOFF Flanges
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F 53: ASTM A182 F53 / SAF 2507 Super Duplex / 1.4410 / S32750 Slip On / SORF / SOFF Flanges
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F 55: ASTM A182 F55 / SAF 2507 Super Duplex / 1.4410 / S32760 Slip On / SORF / SOFF Flanges
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F 60: ASTM A182 F60 / SAF 2205 Duplex / 1.4462 / S32205 Slip On / SORF / SOFF Flanges
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Alloy Steel Grades:
F5: ASTM A182 F5 / Chrome Moly F5 / 1.7362 / K41545 Slip On / SORF / SOFF Flanges
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F9: ASTM A182 F9 / Chrome Moly F9 / 1.7386 / K90941 Slip On / SORF / SOFF Flanges
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F11: ASTM A182 F11 / Chrome Moly F11 / 1.7335 / K11597 Slip On / SORF / SOFF Flanges
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F21: ASTM A182 F21 / Chrome Moly F21 / 10CRM0910 / K41545 Slip On / SORF / SOFF Flanges
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F22: ASTM A182 F22 Slip On / SORF / SOFF Flanges
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F91: ASTM A182 F91 / Chrome Moly F91 / 1.4903 / K21590 Slip On / SORF / SOFF Flanges
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Carbon Steel Grades:
A105: ASTM A105 / Carbon Steel A105 / K03504 Slip On / SORF / SOFF Flanges
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LTCS Grades:
A350 LF2: A350 LF2 Slip On / SORF / SOFF Flanges
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Copper Nickel Grades:
C70600(90/10): C70600 / Cu-Ni 90/10 / 2.0872 Slip On / SORF / SOFF Flanges
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C71500(70/30): C71500 / Cu-Ni 70/30 / 2.0882 Slip On / SORF / SOFF Flanges
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C71640: C71640 Slip On / SORF / SOFF Flanges
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Nickel Grades:
UNS N02200: UNS N02200 / Nickel 200 / 2.4066 Slip On / SORF / SOFF Flanges
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UNS N02201: UNS N02201 / Nickel 201 / 2.4068 Slip On / SORF / SOFF Flanges
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Monel Grades:
UNS N04400: UNS N04400 / Monel 400 / 2.4360 / B564 N04400 Slip On / SORF / SOFF Flanges
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UNS N05500: UNS N05500 / Monel K500 / 2.4375 / B564 N05500 Slip On / SORF / SOFF Flanges
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Alloy 20: Alloy 20 / 2.4660 / B462 Alloy 20 Slip On / SORF / SOFF Flanges
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Inconel Grades:
UNS N06600: UNS N06600 / 2.4816 / Inconel 600 / B564 N06600 Slip On / SORF / SOFF Flanges
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UNS N06601: UNS N06601 / 2.4851 / Inconel 601 / B564 N06601 Slip On / SORF / SOFF Flanges
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UNS N06625: UNS N06625 / 2.4856 / Inconel 625 / B564 N06625 Slip On / SORF / SOFF Flanges
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UNS N08800: UNS N08800 / 1.4876 / Inconel 800 / B564 N08800 Slip On / SORF / SOFF Flanges
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UNS N08810: UNS N08810 / 1.4876 / Inconel 810 / B564 N08810 Slip On / SORF / SOFF Flanges
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UNS N08825: UNS N08825 / 2.4858 / Incoloy 825 / B564 N08825 Slip On / SORF / SOFF Flanges
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Hastelloy Grades:
UNS N10276: UNS N10276 / 2.4819 / Hastelloy C276 / B564 N10276 Slip On / SORF / SOFF Flanges
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UNS N06022: UNS N06022 / 2.4602 / Hastelloy C22 / B564 N06022 Slip On / SORF / SOFF Flanges
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UNS N10665: UNS N10665 Slip On / SORF / SOFF Flanges
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UNS N06455: UNS N06455 Slip On / SORF / SOFF Flanges
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Titanium Grades:
Gr 1: Titanium Gr1 Slip On / SORF / SOFF Flanges
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Gr 2: Titanium Gr2 / 3.7035 / R50400 / B381 Grade 2 Slip On / SORF / SOFF Flanges
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Gr 3: Titanium Gr3 Slip On / SORF / SOFF Flanges
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Gr 5: Titanium Gr5 / 3.7165 / R56400 / B381 Grade 5 Slip On / SORF / SOFF Flanges
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Maraging 300 UNS K93120 Slip On / SORF / SOFF Flanges
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Super Alloy 35N UNS R30035 2.4999 F688 R30035 Slip On / SORF / SOFF Flanges
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Zirconium 702 Slip On / SORF / SOFF Flanges
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Stellite Grade 6 Slip On / SORF / SOFF Flanges
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Stellite Grade 19 Slip On / SORF / SOFF Flanges
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Stellite Grade 25 Slip On / SORF / SOFF Flanges
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Alloy A286 Slip On / SORF / SOFF Flanges
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Alloy 28 Slip On / SORF / SOFF Flanges
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Alloy 230 Slip On / SORF / SOFF Flanges
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Invar 36 Slip On / SORF / SOFF Flanges
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Invar 42 Slip On / SORF / SOFF Flanges
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Tantalum R05200 Slip On / SORF / SOFF Flanges
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Cobalt L-605 2.4964 Haynes 25 Slip On / SORF / SOFF Flanges
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SS446 Slip On / SORF / SOFF Flanges
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XM 19 Nitrinic 50 S20910 Slip On / SORF / SOFF Flanges
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254 SMO Slip On / SORF / SOFF Flanges
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Nimonic 75 N06075 2.4951 2.4630 Slip On / SORF / SOFF Flanges
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RA 602CA 2.4633 N06025 Slip On / SORF / SOFF Flanges
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Waspaloy N07001 AMS 5708 AMS 5544 Slip On / SORF / SOFF Flanges
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Inconel X-750 2.4669 Slip On / SORF / SOFF Flanges
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Ferralium 255 UNS S32550 Slip On / SORF / SOFF Flanges
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Haynes 188 UNS R330188 Udimet 188 Cobalt Alloy 188 Slip On / SORF / SOFF Flanges
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310 MoLN UNS S31050 1.4466 Slip On / SORF / SOFF Flanges
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SS415 1.4313 S41500 Slip On / SORF / SOFF Flanges
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Sanicro 28 Slip On / SORF / SOFF Flanges
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Hastelloy G3 UNS N06985 Slip On / SORF / SOFF Flanges
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AA2024 Slip On / SORF / SOFF Flanges
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2014 Alloy UNS A92014 Slip On / SORF / SOFF Flanges
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Alloy 5083 Slip On / SORF / SOFF Flanges
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FASTEST DELIVERY IN THE WORLD
Tesco Steel & Engineering is focused on creating the fastest seamless experience to buy premium quality slip on flanges. We export our products to more than 142 countries.
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We have most standard sizes in ready stock and ship them through air or sea depending on the size and weight of the products. In case of sizes which are not in stock, we can manufacture them in 3-4 days. For the most urgent orders, we are specialized in delivering the product to you within 7 days.
Countries we export to: Slip On Flanges Manufacturers / Suppliers / Stockist in Kuwait, UAE, Germany, Saudi Arabia, West Africa, Iraq, Congo, Mexico, Bahrain, Canada, Philippines, Thailand, Kenya, Oman, Malaysia, Turkey, Qatar, Sudan, Netherlands, Oman, Nigeria, Lithuania, Gabon, Russia, Vietnam, Angola, Bolivia, Indonesia, UK, Yemen, Italy, United States, Venezuela, Spain, Iran, Estonia, Kazakhstan, Algeria, Jordan, Ecuador, Portugal, Colombia, Libya, Chile, Peru, Iran, South Africa, Bangkok, Namibia, Jeddah, Afghanistan, Israel, Zambia, Macau, Morocco, Denmark, Taiwan, Norway, Belarus, North Macedonia, Lebanon, Sri Lanka, Bhutan, Bulgaria, Albania, Ukraine, Belgium, Finland, Slovokia, Tibet, Romania, France, Brazil, Trinidad & Tobago, Fiji, Tunisia, Gambia, Mexico, Hungary, Zimbabwe, Mongolia, Ghana, Egypt, Kazakhstan, Czech Republic, Azerbaijan, Poland, Greece, Costa Rica, Kosovo, New Zealand, Croatia, Puerto Rico, Tanzania, Somalia.
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Major Exporting Areas: Slip-On Flanges Manufacturers / Suppliers / Stockist in Moscow, Port-Of-Spain, Seoul, Montreal, Dubai, Kuala Lumpur, Aberdeen, Tehran, Bogota, Petaling Jaya, Melbourne, Abu Dhabi, Courbevoie, Edmonton, Ho Chi Minh City, Bangkok, Toronto, Muscat, Milan, Busan, Mexico City, Perth, La Victoria, Santiago, Rio de Janeiro, London, Karachi, Los Angeles, Manama, Geoje-si, Atyrau, Sydney, Riyadh, New York, Jeddah, Houston, Granada, Jakarta, Brisbane, Algiers, Kuwait City, Dubai, Hanoi, Doha, Al Jubail, Chiyoda, Cairo, Gimhae-si, Caracas, Lagos, Al Khobar, Madrid, Singapore, Calgary, Colombo, Ulsan, Istanbul, Ahvaz, Dammam, Dallas, Texas, Ankara, Sharjah, Vung Tau, Angola, Benin, Burundi, Botswana, Burkina Faso, Cameroon, Douala, Central African Republic, Republic of Congo, Democratic Republic of Congo, Côte d'Ivoire, Djibouti, Eritrea, Ethiopia, Equatorial Guinea, Gabon, Guinea, Kenya, Liberia,Malawi, Mali, Mauritania, Mauritius, Casablanca-Settat, Tanger-Tetouan-Al Hoceima, Fès-Meknès, Marrakesh-Safi, Oriental, Béni Mellal-Khénifra, Souss-Massa, Laâyoune-Sakia El Hamra, Rabat-Salé-Kénitra region, Mozambique, Temara, Niger, Rwanda, Senegal, Sierra Leone, Sudan, Tanzania, Togo, Uganda, Bangkok, Bangchan, Khlong Sam Wa, Gemopolis, Lard Krabang, Pathumthani, Bangkadi, Navanakorn, Samut Prakarn, Bangplee, Bangpoo, Saraburi, Nongkhae, SIL I/Land, Chachoengsao, 304 I/P, Gateway City, Wellgrow, Rayong, Amata City, Eastern Seaboard, Hemaraj Eastern Seaboard, Rojana, Soam Eastern, Chonburi, Amata Nakorn, Hemaraj Chonburi, Pinthong, Ayutthaya, Bangpa-in, Saha Ratna Nakorn, Nakornratchasima, Kabinburi, Prachinburi, HCMC, Tan Thuan Export Processing Zone, Bien Hoa, Dong Nai Province, Amata City Bien Hoa Industrial Park, Long Binh Techno Park, Binh Duong Province, Vietnam Singapore Industrial Park, My Phuoc Industrial Park, Ho Nai Industrial Zone, Bau Xeo Industrial Park, Long Thanh Industrial Zone, Long Duc Industrial Park, Duc Hao I, Tan Huong, Long Jiang, Tra Noc I/II, Hung Phu I, Hiep Phuoc Industrial Park, Phuoc Dong Industrial Park, Dinh Vu – Cat Hai Economic Zone.