描述
Wilson Steels Offer Stainless Steel Pipe, Stainless Steel Tubes,Stainless Steel Seamless Pipes for the Oil & Gas and Refinery Industry in the form of Stainless Steel Hexagonal Pipe, Stainless Steel Round Pipe, Stainless Steel Square Pipe, and Stainless Steel Hollow Pipe, Stainless Steel Pipe Suppliers. Stainless steel Pipe is stronger, low maintenance, higher corrosive resistant, attractive in appearance, and costlier than a standard grade of steel. Schedule 40 stainless steel pipe, ASME B36.10 SS Electropolish Pipe dimensions are obtainable in pipe sizes such as 1/2″, 1/4″, 1/8″, 3/8″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″, 2-1/2″, 3″, 3-1/2″, 4″, 5″, 6″ and 8″. Stainless steel is a versatile material comprised of a steel alloy and a small percentage of chromium — the addition of chromium adds to the material’s corrosion resistance, a trait that earned stainless steel its name. Because stainless steel is also low-maintenance, oxidation resistant, and doesn’t affect other metals it comes in contact with, it is frequently used in a large array of applications, especially in piping and tubing manufacturing.
Material | Grade |
| Stainless Steel | TP304, 304L, 304H, 316, 316L, 316H, 316Ti, 317, 317L, 310S, 310H, 347, 347H, 321, 321H, 904L, S31254(254SMO) (mat.1.4301,1.4307,1.4948,1.4401,1.4404,1.4571,1.4438,1.4438, 1.4833,1.4841,1.4845,1.4845,1.4450,1.4541,1.4878,1.4539, ,1.4547) etc. |
The specific standards of each country are as follows:
| No | China,GB | Japan | American | Korea | EUR | Indai | Australia | Tai Wan | ||
| Old | New（07.10） | JIS | ASTM | UNS | KS | BS EN | IS | IS | CNS | |
| Austenitic stainless steel | ||||||||||
| 1 | 1Cr17Mn6Ni5N | 12Cr17Mn6Ni5N | SUS201 | 201 | S20100 | STS201 | 1.4372 | 10Cr17Mn6Ni4N20 | 201-2 | 201 |
| 2 | 1Cr18Mn8Ni5N | 12Cr18Mn9Ni5N | SUS202 | 202 | S20200 | STS202 | 1.4373 | – | 202 | |
| 3 | 1Cr17Ni7 | 12Cr17Ni7 | SUS301 | 301 | S30100 | STS301 | 1.4319 | 10Cr17Ni7 | 301 | 301 |
| 4 | 0Cr18Ni9 | 06Cr19Ni10 | SUS304 | 304 | S30400 | STS304 | 1.4301 | 07Cr18Ni9 | 304 | 304 |
| 5 | 00Cr19Ni10 | 022Cr19Ni10 | SUS304L | 304L | S30403 | STS304L | 1.4306 | 02Cr18Ni11 | 304L | 304L |
| 6 | 0Cr19Ni9N | 06Cr19Ni10N | SUS304N1 | 304N | S30451 | STS304N1 | 1.4315 | – | 304N1 | 304N1 |
| 7 | 0Cr19Ni10NbN | 06Cr19Ni9NbN | SUS304N2 | XM21 | S30452 | STS304N2 | – | – | 304N2 | 304N2 |
| 8 | 00Cr18Ni10N | 022Cr19Ni10N | SUS304LN | 304LN | S30453 | STS304LN | – | – | 304LN | 304LN |
| 9 | 1Cr18Ni12 | 10Cr18Ni12 | SUS305 | 305 | S30500 | STS305 | 1.4303 | – | 305 | 305 |
| 10 | 0Cr23Ni13 | 06Cr23Ni13 | SUS309S | 309S | S30908 | STS309S | 1.4833 | – | 309S | 309S |
| 11 | 0Cr25Ni20 | 06Cr25Ni20 | SUS310S | 310S | S31008 | STS310S | 1.4845 | – | 310S | 310S |
| 12 | 0Cr17Ni12Mo2 | 06Cr17Ni12Mo2 | SUS316 | 316 | S31600 | STS316 | 1.4401 | 04Cr17Ni12Mo2 | 316 | 316 |
| 13 | 0Cr18Ni12Mo3Ti | 06Cr17Ni12Mo2Ti | SUS316Ti | 316Ti | S31635 | – | 1.4571 | 04Cr17Ni12MoTi20 | 316Ti | 316Ti |
| 14 | 00Cr17Ni14Mo2 | 022Cr17Ni12Mo2 | SUS316L | 316L | S31603 | STS316L | 1.4404 | -02Cr17Ni12Mo2 | 316L | 316L |
| 15 | 0Cr17Ni12Mo2N | 06Cr17Ni12Mo2N | SUS316N | 316N | S31651 | STS316N | – | – | 316N | 316N |
| 16 | 00Cr17Ni13Mo2N | 022Cr17Ni13Mo2N | SUS316LN | 316LN | S31653 | STS316LN | 1.4429 | – | 316LN | 316LN |
| 17 | 0Cr18Ni12Mo2Cu2 | 06Cr18Ni12Mo2Cu2 | SUS316J1 | – | – | STS316J1 | – | – | 316J1 | 316J1 |
| 18 | 00Cr18Ni14Mo2Cu2 | 022Cr18Ni14Mo2Cu2 | SUS316J1L | – | – | STS316J1L | – | – | – | 316J1L |
| 19 | 0Cr19Ni13Mo3 | 06Cr19Ni13Mo3 | SUS317 | 317 | S31700 | STS317 | – | – | 317 | 317 |
| 20 | 00Cr19Ni13Mo3 | 022Cr19Ni13Mo3 | SUS317L | 317L | S31703 | STS317L | 1.4438 | – | 317L | 317L |
| 21 | 0Cr18Ni10Ti | 06Cr18Ni11Ti | SUS321 | 321 | S32100 | STS321 | 1.4541 | 04Cr18Ni10Ti20 | 321 | 321 |
| 22 | 0Cr18Ni11Nb | 06Cr18Ni11Nb | SUS347 | 347 | S34700 | STS347 | 1.455 | 04Cr18Ni10Nb40 | 347 | 347 |
| Austenitic ferritic stainless steel (duplex stainless steel) | ||||||||||
| 23 | 0Cr26Ni5Mo2 | – | SUS329J1 | 329 | S32900 | STS329J1 | 1.4477 | – | 329J1 | 329J1 |
| 24 | 00Cr18Ni5Mo3Si2 | 022Cr19Ni5Mo3Si2N | SUS329J3L | – | S31803 | STS329J3L | 1.4462 | – | 329J3L | 329J3L |
| 0Cr18Ni10Ti Iron type stainless steel | ||||||||||
| 25 | 0Crl3Al | 06Crl3Al | SUS405 | 405 | S40500 | STS405 | 1.4002 | 04Cr13 | 405 | 405 |
| 26 | – | 022Cr11Ti | SUH409 | 409 | S40900 | STS409 | 1.4512 | – | 409L | 409L |
| 27 | 00Cr12 | 022Cr12 | SUS410L | – | – | STS410L | – | – | 410L | 410L |
| 28 | 1Cr17 | 10Cr17 | SUS430 | 430 | S43000 | STS430 | 1.4016 | 05Cr17 | 430 | 430 |
| 29 | 1Cr17Mo | 10Cr17Mo | SUS434 | 434 | S43400 | STS434 | 1.4113 | – | 434 | 434 |
| 30 | – | 022Cr18NbTi | – | – | S43940 | – | 1.4509 | – | 439 | 439 |
| 31 | 00Cr18Mo2 | 019Cr19Mo2NbTi | SUS444 | 444 | S44400 | STS444 | 1.4521 | – | 444 | 444 |
| Martensitic stainless steel | ||||||||||
| 32 | 1Cr12 | 12Cr12 | SUS403 | 403 | S40300 | STS403 | – | – | 403 | 403 |
| 33 | 1Cr13 | 12Cr13 | SUS410 | 410 | S41000 | STS410 | 1.4006 | 12Cr13 | 410 | 410 |
| 34 | 2Cr13 | 20Cr13 | SUS420J1 | 420 | S42000 | STS420J1 | 1.4021 | 20Cr13 | 420 | 420J1 |
| 35 | 3Cr13 | 30Cr13 | SUS420J2 | – | – | STS420J2 | 1.4028 | 30 Cr13 | 420J2 | 420J2 |
| 36 | 7Cr17 | 68Cr17 | SUS440A | 440A | S44002 | STS440A | – | – | 440A | 440A |
European Standard
European stainless steel tube & pipe standards specify 4 classes outer diameter and wall thickness in percentage or absolute value on the basis of nominal dimension. Generally, larger diameter or heavy wall thickness stainless steel pipe use percentage, small diameter or thin wall thickness stainless steel tube use absolute value.
| Standard | Manufacturing Process & Type | Outer Diameter Tolerance | Wall Thickness Tolerance | Others | |
| OD (Mm) | Class | ||||
| EN10216-5 | Hot Finished Seamless Tube | 219.1-610 | D1 | +22.5%T，-15%T | T/D≤0.05 |
| T1 | T/D≤0.09 | ||||
| T2 | T/D>0.09 | ||||
| 30-219.1 | D2 | T1 | |||
| T2 | |||||
| Cold Finished Seamless Tubes | ≤219.1 | D3 | T3 | ||
| D4 | T4 | Agreement | |||
| EN10297-2 | Hot Finished Seamless Tube | D1 | T1 | ||
| D2 | T2 | Agreement | |||
| Cold Finished Seamless Tubes | D3 | T3 | |||
| D4 | T4 | Agreement | |||
| EN10217-7 | Welded Tubes | >168.3 | D2 | T3 | |
| ≤168.3 | D3 | T3 | |||
| D4 | T3 | Agreement | |||
| EN10296-2 | Welded Tubes | >168.3 | D2 | T3 | |
| ≤168.3 | D3 | T3 | |||
| ≤114.3 | D4 | T3 | Agreement | ||
| EN10312 | Welded Tubes | Series 1 | D4 | T3 | T=0.6-2 Mm |
| Series 2 | D3 – D4 | T3 – T4 | T=1-3 Mm | ||
America Standard
| ASTM A999 | ASTM A1016 |
| ASTM A312 / A12M | A213 / A213M |
| A358 / A358M | A249 / A249M |
| A376 / A376M | A268 / A268M |
| A409 / A409M | A269 |
| A778 | A270 |
| A790 / A790M | A688 / A688M |
| A813 / A813M | A789 / A789M |
| A814 / A814M | A803 / A803M |
| A928 / A928M |
| Standard | Manufacturing & delivery condition | Outside Diameter | OD tolerance mm | Thickness | T tolerance mm | |
| OD / mm | T / mm | Minimum | Average | |||
| ASTM A1016 | Hot drawn seamless tubes | <=100 | +0.4, -0.8 | <=2.4 | +0.4t, 0 | |
| A1016M | 100 – 200 | +0.4, -1.2 | 2.4 – 3.8 | +0.35t, 0 | ||
| 200 – 225 | +0.4, -1.6 | 3.8 – 4.6 | +0.33t, 0 | |||
| >=4.6 | +0.28t, 0 | |||||
| Cold drawn seamless tubes | <25 | +0.1, -0.11 | +0.20t, 0 | +/-0.10t | ||
| 25 – 40 | ||||||
| 40 – 50 | +/-0.2 | +0.22t, 0 | +/-0.10t | |||
| 50 – 65 | +/-0.25 | |||||
| 65 – 75 | +/-0.3 | |||||
| 75 – 100 | +/-0.38 | |||||
| 100 – 200 | +/-0.38, -0.04 | |||||
| 200 – 250 | +/-0.38, -1.14 | |||||
| Welded tubes | 40 – 50 | +/-0.2 | +0.18t, 0 | +/-0.10t | ||
| 50 – 65 | +/-0.25 | |||||
| 65 – 75 | +/-0.3 | |||||
| 75 – 100 | +/-0.38 | |||||
| 100 – 200 | +/-0.38, -0.04 | |||||
| 200 – 250 | +/-0.38, -1.14 | |||||
| ASTM A999 / M | Seamless tubes and welded tubes | <48.3 | +0.4, -0.8 | -0.125t | ||
| ASTM A312 / M | Seamless tubes and welded tubes | 48.3-114.3 | +/-0.8 | OD=10.3-73 | +0.20 t, -125t | |
| 168.3-219.1 | +1.6, -0.8 | t/OD<=5% OD=88.9-457.2 | +0.225 t, -125t | |||
| 219.1-457.2 | +2.4, -0.8 | t/OD>5% OD=88.9-457.2 | +0.15 t, -125t | |||
| Welded tubes | 508-660 | +3.2, -0.8 | OD>=508 | +0.175 t，-0.125 t | ||
| 711-864 | +4.0, -0.8 | t/OD<=5%, OD>=508 | +0.225 t，-0.125 t | |||
| Seamless tubes | 914-1209 | +4.8, -0.8 | t/OD>5%, OD>=508 | +0.15 t, -125t | ||
| ASTM A409 / M | Welded tubes | +/-0.2% | T<4.8 | |||
| +/-0.4% | t>=4.8 | |||||
| ASTM A358 / M | Welded tubes | +/-0.50% | ||||
| ASTM A511 | Seamless tubing | <=12.7 | +/-0.1 | +/-0.15t | ||
| 12.7-38.1 | +/-0.2 | +/-0.10t | ||||
| 38.1-88.9 | +/-0.3 | |||||
| 88.9-139.7 | +/-0.4 | |||||
| 139.7-203.1 | +/-0.8 | |||||
| 203.1-220 | +/-1.1 | |||||
| 220-325 | +/-1.6 | |||||
China Standards
China has more quantity standards compared to European standards, but less than american standards, SS tube and pipe standards are similar with EU standards in system, and absorb favorable experience in USA specifications.
| Specification | Manufacturing | O.D(Mm) | O.D Tolerance | W.T(Mm) | W.T Tolerance | |
| GB13296 | Cold Rolled Seamless Pipe | 6-30 | ±0.15/-0.2 | 1-3 | +20% | -0% |
| ＞30-50 | ±0.3 | ＞3 | +22% | -0% | ||
| ＞50 | ±0.75% | Also Average Wall | ||||
| GB/T14976 | Cold Rolled Seamless Tube | 6-10 | ±0.15 | 1-3 | +12.5% | -12.5% |
| 10-30 | ±0.2 | ＞3 | +12.5% | -10% | ||
| 30-50 | ±0.3 | Average Wall, +22% | ||||
| ＞50 | ±0.8% | |||||
Standard Comparison
Stainless steel tube & pipe wall thickness tolerance are the same as the general accuracy of American ASTM / ASME and EU standards, but slightly lower than the high requirements of the EU standards. Stainless steel tube & pipe outer diameter tolerances are mostly lower than American standards, and approaching the EU standards. it is more reasonable that the American standard specify the OD tolerance is tight, compared to thickness tolerance. China GB standards and EU standard have no weight tolerance specified, seamless tube & pipe in GB standard delivery goods as actual weight or theoretical weight, welded tube & pipe as theoretical weight or actual weight.
Applications
| A.I.S.I. U.N.S. | Characteristics | End-Use |
| 301 S30100 | Able to attain tempers from 1⁄4 through fullhard, extra full hard by cold rolling.Withstands severe forming in annealedcondition. | Kitchen sinks, Automotive wheelcovers. Toaster springs, Seat beltbuckles |
| 303 S30300 | Highest machinability rating among the300 series. Forming and welding are notrecommended. | Nuts and bolts, threaded rods,Fittings. |
| 304 S30400 | Excellent corrosion resistance and suitablefor deep drawing applications when Nickelcontent is increased. Carbon content.08% max. | Food Industry, Chemical Industry,Deep drawing applications, Aestheticapplication. |
| 304L S30403 | Same characteristics as 304 with a lowercarbon content .03% max. Used whenpost weld annealing is impossible. Thelower carbon content reduces carbide precipitation in the welded zone. | Large fabricated equipment. |
| 316 S31600 | Molybdenum bearing alloy with betteroverall corrosion resistance than 304 and higher creep strength at elevated temperatures. | Marine coastal environments, Pulpand paper industry, Chemical andpetrochemical Industry |
| 316L S31603 | Same characteristics as 316 with a lower Carbon content .03 max. Good corrosion resistance in high temperature intermittentservice. Used when post weld annealing is impossible. The lower carbon contentreduces Carbide precipitation in the welded zone. | Large fabricated equipment. |
| 317L S31703 | Higher Molybdenum content than 316 forbetter corrosion resistance. Carbon content .03% max. | Corrosive environments. Chemicaland petrochemical industries. |
| 309 S30900 309S S30908 | Heat resisting alloy with good corrosionresistance. High tensile and creepstrengths as well as at elevated temperatures. 309S has a lower Carbon content.03 max. | Furnace parts, Baffles, Cement kilnchains. Exhaust manifold butterflyvalves. |
| 310 S31000 310S S31008 | Improved characteristics over 309 andbetter scaling resistance in intermittentelevated temperatures. Grade 310 has alow co-efficient of expansion. | Furnace parts, Carburizing boxes,Heat exchangers, Oil burner parts. |
Oil and Gas& Nuclear Power& LNG (liquefied natural gas)& Desalination& Mining and Minerals.
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