Recommended stainless pipes& tubes

Heat resisting stainless steel pipe
Heat resisting stainless pipe
The auction is for 6 metre length of prime quality grade 409 stainless steel tubing with a 1.2mm wall thickness x 38.1mm
Bright annealing tube
Bright annealing tube
Bright annealing tube under a reducing atmosphere or in a vacuum protection, after high temperature solid melting...
Stainless carbon steel composite pipe
Stainless composite pipe
The stainless carbon steel composite pipe is made of stainless steel and carbon structural steel.
Stainless steel tube for heat exchanger
Stainless heat exchanger tube
Heat exchanger tube in an extensive range of austenitic stainless steels for all types of heat exchangers.

Stainless steel pipes for oil cracking
Pipes for oil cracking
Stainless steel pipes for oil cracking inventory to fulfill your project’s needs, buy Stainless steel pipes for oil cracking at best price & fast delivery.
Seamless stainless steel pipe
Seamless stainless pipe
Stainless steel pipes is safe and reliable, environmental health, affordable, and the thin wall of the pipe as well as new and reliable

Duplex Stainless Steel Pipe

What is Duplex Stainless Steel?

Duplex Stainless Steel is a type of steel containing the high amount of chromium and minimum amount of nickel. It provides great strength and resistance to corrosive environments. It is used in desalination plants, heat exchangers, and marine processes.

Duplex 2205 (UNS S31803)

Duplex 2205 (UNS S31803), or Avesta Sheffield 2205 is a ferritic-austenitic stainless steel.

Duplex 2507 (UNS S32750)

Duplex 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed.

Super duplex UNS S32760

UNS S32760 is described as a super duplex stainless with a microstructure of 50:50 austenite and ferrite.

Dual phase steel

Dual-phase steel (DPS) is a high-strength steel that has a ferrite and martensitic microstructure.

Tech & Grade for Stainless steel

Also known as "marine grade" stainless steel due to its increased ability to resist saltwater corrosion compared to type 304. SS316 is often used for building nuclear reprocessing plants.

304/304L Stainless Steel

304 Stainless is a low carbon (0.08% max) version of basic 18-8 also known as 302.

316/316L Stainless Steel

Type 316 is more resistant to atmospheric and other mild environments than Type 304.

310S Stainless Steel

310S Stainless Steel has excellent resistance to oxidation under constant temperatures to 2000°F.

317L Stainless Steel

317L is a molybdenum bearing austenitic chromium nickel steel similar to type 316, except the alloy content in 317L is somewhat higher.

321/321H Stainless Steel

Type 321 is basic type 304 modified by adding titanium in an amount at least 5 times the carbon plus nitrogen contents.

410 Stainless Steel

Type 410 is a martensitic stainless steel which is magnetic, resists corrosion in mild environents and has fairly good ductility.

Duplex 2205 (UNS S31803)

Duplex 2205 (UNS S31803), or Avesta Sheffield 2205 is a ferritic-austenitic stainless steel.

Duplex 2507 (UNS S32750)

Duplex 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum...

SUPER DUPLEX UNS S32760

UNS S32760 is described as a super duplex stainless with a microstructure of 50:50 austenite and ferrite.

Comparison table of stainless steel brands of various countries

In order to solve the cumbersome and difficult to remember stainless steel grades, improve the practicability of the brand representation, and the contrast with the international standard grades, China has formulated the "Universal Code System for Steel and Alloy Grades", such as 06Cr19Ni10, corresponding to 304. Different grades of stainless steel have different ingredients, but they all have a national standard. The standards of each country are also different.

The specific standards of each country are as follows:

NoChina,GBJapanAmericanKoreaEURIndaiAustraliaTai Wan
OldNew(07.10)JISASTMUNSKSBS ENISISCNS
Austenitic stainless steel
11Cr17Mn6Ni5N12Cr17Mn6Ni5NSUS201201S20100STS2011.437210Cr17Mn6Ni4N20201-2201
21Cr18Mn8Ni5N12Cr18Mn9Ni5NSUS202202S20200STS2021.4373 -202
31Cr17Ni712Cr17Ni7SUS301301S30100STS3011.431910Cr17Ni7301301
40Cr18Ni906Cr19Ni10SUS304304S30400STS3041.430107Cr18Ni9304304
500Cr19Ni10022Cr19Ni10SUS304L304LS30403STS304L1.430602Cr18Ni11304L304L
60Cr19Ni9N06Cr19Ni10NSUS304N1304NS30451STS304N11.4315-304N1304N1
70Cr19Ni10NbN06Cr19Ni9NbNSUS304N2XM21S30452STS304N2--304N2304N2
800Cr18Ni10N022Cr19Ni10NSUS304LN304LNS30453STS304LN--304LN304LN
91Cr18Ni1210Cr18Ni12SUS305305S30500STS3051.4303-305305
100Cr23Ni1306Cr23Ni13SUS309S309SS30908STS309S1.4833-309S309S
110Cr25Ni2006Cr25Ni20SUS310S310SS31008STS310S1.4845-310S310S
120Cr17Ni12Mo206Cr17Ni12Mo2SUS316316S31600STS3161.440104Cr17Ni12Mo2316316
130Cr18Ni12Mo3Ti06Cr17Ni12Mo2TiSUS316Ti 316TiS31635-1.457104Cr17Ni12MoTi20316Ti 316Ti
1400Cr17Ni14Mo2022Cr17Ni12Mo2SUS316L316LS31603STS316L1.4404~02Cr17Ni12Mo2316L316L
150Cr17Ni12Mo2N06Cr17Ni12Mo2NSUS316N316NS31651STS316N--316N316N
1600Cr17Ni13Mo2N022Cr17Ni13Mo2NSUS316LN316LNS31653STS316LN1.4429-316LN316LN
170Cr18Ni12Mo2Cu206Cr18Ni12Mo2Cu2SUS316J1--STS316J1--316J1316J1
1800Cr18Ni14Mo2Cu2022Cr18Ni14Mo2Cu2SUS316J1L--STS316J1L---316J1L
190Cr19Ni13Mo306Cr19Ni13Mo3SUS317317S31700STS317--317317
2000Cr19Ni13Mo3022Cr19Ni13Mo3SUS317L317LS31703STS317L1.4438-317L317L
210Cr18Ni10Ti06Cr18Ni11TiSUS321321S32100STS3211.454104Cr18Ni10Ti20321321
220Cr18Ni11Nb06Cr18Ni11NbSUS347347S34700STS3471.45504Cr18Ni10Nb40347347
Austenitic ferritic stainless steel (duplex stainless steel)
230Cr26Ni5Mo2-SUS329J1329S32900STS329J11.4477-329J1329J1
2400Cr18Ni5Mo3Si2022Cr19Ni5Mo3Si2NSUS329J3L-S31803STS329J3L1.4462-329J3L329J3L
0Cr18Ni10Ti Iron type stainless steel
250Crl3Al06Crl3AlSUS405405S40500STS4051.400204Cr13405405
26-022Cr11TiSUH409409S40900STS4091.4512-409L409L
2700Cr12022Cr12SUS410L--STS410L--410L410L
281Cr1710Cr17SUS430430S43000STS4301.401605Cr17430430
291Cr17Mo10Cr17MoSUS434434S43400STS4341.4113-434434
30-022Cr18NbTi--S43940-1.4509-439439
3100Cr18Mo2019Cr19Mo2NbTiSUS444444S44400STS4441.4521-444444
Martensitic stainless steel
321Cr1212Cr12SUS403403S40300STS403--403403
331Cr1312Cr13SUS410410S41000STS4101.400612Cr13410410
342Cr1320Cr13SUS420J1420S42000STS420J11.402120Cr13420420J1
353Cr1330Cr13SUS420J2--STS420J21.402830 Cr13420J2420J2
367Cr1768Cr17SUS440A440AS44002STS440A--440A440A

Packing stainless pipes

Capped end stainless steel tube
Capped end stainless steel tube
Tubes putted in wooden boxes
Tubes putted in wooden boxes
Stainless Steel Seamless Pipes
The wooden boxes packing for stainless products
Stainless Steel Seamless Pipes
Warehouse
  • Marking: SunnySteel, material grade, standard, specification, heat no.
  • Surface Treatment: Bright annealed, polished outside and inside surface.
  • Mill test certificate: according to EN 10204 3.2
  • Inspection: Third party inspection, or by clints

Pipe size range:

  • Outside diameter: range from 6mm to 530mm.
  • Wall thickness: SCH5S, SCH10S, SCH40S, SCH80S, SCH 120S
  • Legnth: unbending length or fix length
Range of Application

Stainless steel pipe (tube) has excellent characteristics of corrosion resistance and smooth finishing. Stainless steel pipe (tube) is commonly used in demanding equipment like automobiles, food processing, water treatment facilities, oil and gas processing, refinery and petrochemicals, breweries and energy industries.

The stainless steel tubing that is supplied by SunnySteel can used in a variety of industries, including:

  • Machinery Parts
  • Pharmaceutical
  • Biotechnology
  • Automotive
  • Oil and Gas
  • Marine
  • Food and Beverage Processing
  • Construction
  • Automotive industries
  • Food processing
  • Water treatment facilities
  • Breweries and energy industries

Considering the importance of outside and inside surface of stainless steel tubes for fluid power industry, Our mills are providing tubes that are free from scale, rust, seams, laps.



SUNNY STEEL

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

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