Delivering High Quality Stainless Steel and Alloy Piping Products — Pipes, Tubes, Fittings, Flanges and more for Global Industries.
sales@savoypipinginc.com
Delivering High Quality Stainless Steel and Alloy Piping Products — Pipes, Tubes, Fittings, Flanges and more for Global Industries.
sales@savoypipinginc.com
Savoy Piping Inc. supplies ISO 3183 seamless pipe for pipeline transportation systems in the petroleum and natural gas industries — the international line-pipe companion often mapped to API 5L seamless packages.
Buyers usually order by grade + PSL (PSL1 or PSL2), OD/wall, ends, delivery condition and documentation. PSL2 packages commonly add toughness, tighter chemistry and more testing than PSL1.
Grades we quote: L245, L290, L320, L360, L390, L415, L450, L485 (and project-specific higher grades on request), with EN 10204 3.1 / 3.2 MTCs and optional NACE / HIC / SSC sour-service routes.
Related: ISO 3183 Welded SAW Pipe, API 5L Seamless, API 5L LSAW.
ISO 3183 specifies steel pipe for pipeline transportation systems in oil and gas service. Seamless product forms are preferred for many high-pressure transmission and gathering lines where a longitudinal weld seam is not required by design.
The standard covers two product specification levels — PSL1 and PSL2. Always write both the L-grade and the PSL on the purchase order.
Common approximate mappings: L245≈Grade B, L290≈X42, L320≈X46, L360≈X52, L390≈X56, L415≈X60, L450≈X65, L485≈X70. Confirm chemistry, toughness and annex testing against the governing PO — do not substitute on name alone.
PSL2 typically means tighter chemistry, mandatory toughness and more documentation. If the data sheet says PSL2 with CVN / sour annexes, quote the full test package up front — not a PSL1 commercial substitute.
| ISO 3183 Seamless Pipe Specification | ISO 3183 |
| ISO 3183 Seamless Pipe Grades | ISO 3183 L245, L290, L320, L360, L390, L415, L450, L485 (PSL1 / PSL2) |
| ISO 3183 Seamless Pipe Type | Seamless |
| ISO 3183 Seamless Pipe Outer Diameter Size | 3/8" NB to 30" NB (Nominal Bore Size) |
| ISO 3183 Seamless Pipe Wall Thickness | Schedule 20 to Schedule XXS (Heavier On Request) Up to 250 mm Thickness |
| ISO 3183 Seamless Pipe Length | 5 to 7 Meters, 09 to 13 Meters, Single Random Length, Double Random Length And Customize Size. |
| ISO 3183 Seamless Pipe Ends | Plain Ends / Beveled Ends / Coupling |
| ISO 3183 Seamless Pipe Delivery Conditions | As Rolled, Normalizing Rolled, Hot Forming, Cold Finishing Thermomechanical Rolled / Formed, Normalizing Formed, Normalized and Tempered / Quenched and Tempered - BR / N / Q /T |
| ISO 3183 Seamless Pipe Coating | Epoxy Coating / Colour Paint Coating / 3LPE Coating. |
| ISO 3183 Seamless Pipe Other Testing | NACE MR0175, NACE TM0177, SOUR SERVICE, NACE TM0284, PWHT, HIC TEST, SSC TEST, SWC, H2 SERVICE, IBR, IPS-M-PI19, IPS-M-PI-221 APPENDIX G Etc. |
| ISO 3183 Seamless Pipe Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM, ASME, API. |
| ISO 3183 Seamless Pipe Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Galavanizing / Heat Treatment |
| ISO 3183 Seamless Pipe Packaging | Loose / Bundle / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| ISO 3183 Seamless Pipe Shipment & Transportation | By Road - Truck / Train, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet |
| ISO 3183 Seamless Pipe Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab./ Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
| Steel grade (Steel name) |
Mass fraction, based upon heat and product analyses a % | |||||||
| C | Mn | P | S | V | Nb | Ti | ||
| max. b | max. b | min. | max. | max. | max. | max. | max. | |
| Seamless Pipe | ||||||||
| L175 or A25 | 0,21 | 0,60 | - | 0,03 | 0,03 | - | ||
| L175P or A25P | 0,21 | 0,60 | 0,04 | 0,08 | 0,03 | - | ||
| L210 or A | 0,22 | 0,9 | - | 0,03 | 0,03 | |||
| L245 or B | 0,28 | 1,20 | - | 0,03 | 0,03 | c,d | c,d | d |
| L290 or X42 | 0,28 | 1,30 | - | 0,03 | 0,03 | d | d | d |
| L320 or X46 | 0,28 | 1,40 | - | 0,03 | 0,03 | d | d | d |
| L360 or X52 | 0,28 | 1,40 | - | 0,03 | 0,03 | d | d | d |
| L390 or X56 | 0,28 | 1,40 | - | 0,03 | 0,03 | d | d | d |
| L415 or X60 | 0,28 e | 1,40 e | - | 0,03 | 0,03 | f | f | f |
| L450 or X65 | 0,28 e | 1,40 e | - | 0,03 | 0,03 | f | f | f |
| L485 or X70 | 0,28 e | 1,40 e | - | 0,03 | 0,03 | f | f | f |
| Welded Pipe | ||||||||
| L175 or A25 | 0,21 | 0,60 | - | 0,03 | 0,03 | - | ||
| L175P or A25P | 0,21 | 0,60 | 0,04 | 0,08 | 0,03 | - | ||
| L210 or A | 0,22 | 0,9 | - | 0,03 | 0,03 | |||
| L245 or B | 0,26 | 1,20 | - | 0,03 | 0,03 | c,d | c,d | d |
| L290 or X42 | 0,26 | 1,30 | - | 0,03 | 0,03 | d | d | d |
| L320 or X46 | 0,26 | 1,40 | - | 0,03 | 0,03 | d | d | d |
| L360 or X52 | 0,26 | 1,40 | - | 0,03 | 0,03 | d | d | d |
| L390 or X56 | 0,26 | 1,40 | - | 0,03 | 0,03 | d | d | d |
| L415 or X60 | 0,26 e | 1,40 e | - | 0,03 | 0,03 | f | f | f |
| L450 or X65 | 0,26 e | 1,4 e | - | 0,03 | 0,03 | f | f | f |
| L485 or X70 | 0,26 e | 1,65 e | - | 0,03 | 0,03 | f | f | f |
| a 0,50 % maximum for copper; 0,50 % maximum for nickel; 0,50 % maximum for chromium; and 0,15 % maximum for molybdenum,For grades up to and including L360/X52, Cu, Cr and Ni shall not be added intentionally. |
||||||||
| b for each reduction of 0,01 % below the specified maximum concentration for carbon, an increase of 0,05 % above the specified maximum concentration for manganese is permissible, up to a maximum of 1,65 % for grades ≤ L245 or B, but ≤ L360 or X52; up to a maximum of 1,75 % for grades> L360 or X52, but | ||||||||
| c Unless otherwise agreed, the sum of the niobium and vanadium contents shall be u 0,06 %, | ||||||||
| d The sum of the niobium, vanadium and titanium concentrations shall be u 0,15 %, | ||||||||
| e Unless otherwise agreed. | ||||||||
| f Unless otherwise agreed, the sum of the niobium, vanadium and titanium concentrations shall be u 0,15 %. | ||||||||
| Steel grade (Steel name) |
Mass fraction, based upon heat and product analyses a % | Carbon equivalent a % maximum | |||||||||
| C | Si | Mn | P | S | V | Nb | Ti | Other | CE iiw | CE pcm | |
| Seamless Pipe | |||||||||||
| L245R or BR | 0,24 | 0,4 | 1,2 | 0,025 | 0,015 | c | c | 0,04 | e | 0,43 | 0,25 |
| L290R or X42 R | 0,24 | 0,4 | 1,2 | 0,025 | 0,015 | 0,06 | 0,05 | 0,04 | e | 0,43 | 0,25 |
| L245N or BN | 0,24 | 0,4 | 1,2 | 0,025 | 0,015 | c | c | 0,04 | e | 0,43 | 0,25 |
| L290N or X42N | 0,24 | 0,4 | 1,2 | 0,025 | 0,015 | 0,06 | 0,05 | 0,04 | e | 0,43 | 0,25 |
| L320N or X46N | 0,24 | 0,4 | 1,2 | 0,025 | 0,015 | 0,07 | 0,05 | 0,04 | d,e | 0,43 | 0,25 |
| L360N or X52N | 0,24 | 0,4 | 1,4 | 0,025 | 0,015 | 0,1 | 0 | 0,04 | d,e | 0,43 | 0,25 |
| L390N or X56N | 0,24 | 0,4 | 1,4 | 0,025 | 0,015 | 0,10 f | 50,05 | 0,04 | d,e | 0,43 | 0,25 |
| L415N or X60N | 0,24 f | 0,4 f | 0,4 f | 0,025 | 0,015 | 0,10 f | 0,05 f | 0,04 f | g,h | as agreed | |
| L245Q or BQ | 0,18 | 0,4 | 1,4 | 0,025 | 0,015 | 0,05 | 0,05 | 0,04 | e | 0,43 | 0,25 |
| L290Q or X42Q | 0,18 | 0,4 | 1,4 | 0,025 | 0,015 | 0,05 | 0,05 | 0,04 | e | 0,43 | 0,25 |
| L320Q or X46Q | 0,18 | 0,4 | 1,4 | 0,025 | 0,015 | 0,05 | 0,05 | 0,04 | e | 0,43 | 0,25 |
| L360Q or X52Q | 0,18 | 0,4 | 1,5 | 0,025 | 0,015 | 0,05 | 0,05 | 0,04 | e | 0,43 | 0,25 |
| L390Q or X56Q | 0,18 | 0,4 | 1,5 | 0,025 | 0,015 | 0,07 | 0,05 | 0,04 | d,e | 0,43 | 0,25 |
| L415Q or X60Q | 0,18 f | 0,4 f | 1,70 f | 0,025 | 0,015 | g | g | g | h | 0,43 | 0,25 |
| L450Q or X65Q | 0,18 f | 0,4 f | 1,70 f | 0,025 | 0,015 | g | g | g | h | 0,43 | 0,25 |
| L485Q or X70Q | 0,18 f | 0,4 f | 1,80 f | 0,025 | 0,015 | g | g | g | h | 0,43 | 0,25 |
| L555Q or X80Q | 0,18 f | 0,4 f | 1,9 f | 0,025 | 0,015 | g | g | g | I,j | as agreed | |
| Welded Pipe | |||||||||||
| L245M or BM | 0,22 | 0,4 | 1,2 | 0,025 | 0,015 | 0,05 | 0,05 | 0,04 | e | 0,43 | 0,25 |
| L290M or X42M | 0,22 | 0,4 | 1,3 | 0,025 | 0,015 | 0,05 | 0,05 | 0,04 | e | 0,43 | 0,25 |
| L320M or X46M | 0,22 | 0,4 | 1,3 | 0,025 | 0,015 | 0,05 | 0,05 | 0,04 | e | 0,43 | 0,25 |
| L360M or X52M | 0,22 | 0,4 | 1,4 | 0,025 | 0,015 | d | d | d | e | 0,43 | 0,25 |
| L390M or X56M | 0,22 | 0,4 | 1,4 | 0,025 | 0,015 | d | d | d | e | 0,43 | 0,25 |
| L415M or X60M | 0,12 f | 0,4 f | 1,60 f | 0,025 | 0,015 | g | g | g | h | 0,43 | 0,25 |
| L450M or X65M | 0,12 f | 0,4 f | 1,60 f | 0,025 | 0,015 | g | g | g | h | 0,43 | 0,25 |
| L485M or X70M | 0,12 f | 0,4 f | 1,70 f | 0,025 | 0,015 | g | g | g | h | 0,43 | 0,25 |
| L555M or X80M | 0,12 f | 0,4 f | 1,85 f | 0,025 | 0,015 | g | g | g | i | 0,43 f | 0,25 |
| L625M or X9M | 0,1 | 0,55 f | 2,10 f | 0,02 | 0,015 | g | g | g | i | - | 0,25 |
| L69M or X100M | 0,1 | 0,55 f | 2,10 f | 0,02 | 0,015 | g | g | g | I,j | 0,25 | |
| L830M or 120X | 0,1 | 0,55 f | 2,10 f | 0,02 | 0,015 | g | g | g | I,j | 0,25 | |
| a Based upon product analysis. for seamless pipe with t> 20,0 mm (0.787 in), the carbon equivalent limits shall be as agreed. The CEIIW limits apply if the carbon mass fraction is greater than 0,12 % and the CEPcm limits apply if the carbon mass fraction is less than or equal to 0,12 %. |
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| b for each reduction of 0,01 % below the specified maximum for carbon, an increase of 0,05 % above the specified maximum for manganese is permissible, up to a maximum of 1,65 % for grades ≤ L245 or B, but ≤ L360 or X52; up to a maximum of 1,75 % for grades> L360 or X52, but maximum of 2,20 % for grades> L555 or X80. |
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| c Unless otherwise agreed, the sum of the niobium and vanadium concentrations shall be u 0,06 %. | |||||||||||
| d The sum of the niobium, vanadium and titanium concentrations shall be u 0,15 %. | |||||||||||
| e Unless otherwise agreed, 0,50 % maximum for copper, 0,30 % maximum for nickel, 0,30 % maximum for chromium and 0,15 % maximum for molybdenum. |
|||||||||||
| f Unless otherwise agreed. | |||||||||||
| g Unless otherwise agreed, the sum of the niobium, vanadium and titanium concentrations shall be u 0,15 %. | |||||||||||
| Unless otherwise agreed, 0,50 % maximum for copper, 0,50 % maximum for nickel, 0,50 % maximum for chromium and 0,50 % maximum for molybdenum. |
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| i Unless otherwise agreed, 0,50 % maximum for copper, 1,00 % maximum for nickel, 0,50 % maximum for chromium and 0,50 % maximum for molybdenum. |
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| j 0,004 % maximum for boron. | |||||||||||
| Pipe Grade | Pipe Body of Seamless and Welded Pipes | Weld seam of EW, SAW and COW pipes | ||
| Yeild strength a | Tensile strength a | Elongation | Tensile strength b | |
| Rt0.5 | Rm | Af | Rm | |
| Mpa (psi) | Mpa (psi) | % | Mpa (psi) | |
| minimum | minimum | minimum | minimum | |
| L175 or A25 | 175 (25 400) | 310 (4 000) | c | 310 (4 000) |
| L175P or A25P | 175 (25 400) | 310 (4 000) | c | 310 (4 000) |
| L210 or A | 210 (30 500) | 335 (48 600) | c | 335 (48 600) |
| L245R or BR L245 or B |
245 (35 500) | 415 (60 200) | c | 415 (60 200) |
| L290R or x42R L290 or x42 |
290 (42 100) | 415 (60 200) | c | 415 (60 200) |
| L320 or X46 | 320 (46 400) | 435 (63 100) | c | 435 (63 100) |
| L360 or X52 | 360 (52 200) | 460 (66 700) | c | 460 (66 700) |
| L390 or X56 | 390 (56 600) | 49 (79 100) | c | 49 (71 100) |
| L415 or X60 | 415 (60 200) | 520 (75 400) | c | 520 (75 400) |
| L450 or X65 | 450 (65 300) | 535 (77 600) | c | 535 (77 600) |
| L485 or X70 | 485 (70 300) | 570 (82 700) | c | 570 (82 700) |
| Pipe grade | Pipe Body of Seamless and Welded Pipes | weld seam of HFW, SAW and COW pipes | |||||
| Yield Strength a | Tensile Strength a | Ratio a,b,c | Elongation Af | Tensile strength d | |||
| Rt0.5 b | Rm | Rt0,5lRm | Rm | ||||
| Mpa (psi) | Mpa (psi) | % | Mpa (psi) | ||||
| minimum | maximum | minimum | maximum | maximum | minimum | minimum | |
| L245R or BR L245N or BN L245Q or BQ L245M or BM |
24 (35 500) |
40 e (65 300) e |
415 (60 200) |
760 (110 200) |
0,93 | f | 415 (60 200) |
| L290R or X42R L290N or X42N L290Q or X42Q L290M or X42M |
29 (42 100) |
495 (71 800) |
415 (60 200) |
760 (110 200) |
0,93 | f | 415 (60 200) |
| L320N or X46N L320Q or X46Q L320M or X46M |
320 (46 400) |
525 (76 100) |
435 (63 100) |
760 (110 200) |
0,93 | f | 435 (63 100) |
| L360N or X52N L360Q or X52Q L360M or X52M |
360 (52 200) |
530 (76 90) |
460 (66 700) |
760 (110 200) |
0,93 | f | 460 (66 700) |
| L390N or X56N L390Q or X56Q L390M or X56M |
39 (56 600) |
54 (79 000) |
49 (71 100) |
760 (110 200) |
0,93 | f | 49 (71 100) |
| L415N or X60N L415Q or X60Q L415M or X60M |
415 (60 200) |
565 ( 81 90) |
520 (75 400) |
760 (110 200) |
0,93 | f | 520 (75 400) |
| L450Q or X65Q L450M or X65M |
40 (65 300) |
600 (87 000) |
535 (77 600) |
760 (110 200) |
0,93 | f | 535 (77 600) |
| L485Q or X70Q L485M or X70M |
485 (70 300) |
635 (92 100) |
570 (82 700) |
760 (110 200) |
0,93 | f | 570 (82 700) |
HYDROSTATIC TEST
BEND TEST
CVN IMPACT TEST
DWT TEST
ISO 3183 Pipes AS PER ANNEX A, ANNEX B, ANNEX C, ANNEX D ANNEX E, ANNEX G, ANMEX H, ANNEX I, ANNEX J, ANNEX K, ANNEX L, ANNEX M.
ISO 3183 seamless pipe is used for pipeline transportation systems in the petroleum and natural gas industries — oil, gas and related transmission lines ordered to international ISO line-pipe requirements.
They are closely aligned line-pipe standards. Many projects dual-certify or map grades (for example L245≈Grade B, L360≈X52, L450≈X65, L485≈X70), but you must follow the purchase order specification, PSL level and testing annexes — do not substitute on grade name alone.
PSL2 generally requires tighter chemistry, toughness and more extensive testing/documentation than PSL1. Pipeline projects often specify PSL2 with CVN impact and additional annex requirements.
Common grades include L245, L290, L320, L360, L390, L415, L450 and L485 in PSL1 or PSL2, with EN 10204 3.1/3.2 MTCs and optional sour-service / HIC / SSC testing when specified.
We Export ISO 3183 Seamless Pipe to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen, Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Myanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States of America, Canada, Mexico, Panama, Costa Rica, Puerto Rico, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherlands, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc
Savoy Piping Inc. is a well known worldwide exporter of ISO 3183 Seamless Pipe, Savoy Piping Inc. is committed to provide each and every customer with the highest standard of customer service. We deal in ISO 3183 Seamless Pipe in India and Overseas, offering a wide range of ISO 3183 Pipes