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Stainless pipes & tubes

Stainless pipes & tubes are versatile material comprised of a steel alloy and a small percentage of chromium

Stainless pipes & tubes are 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.

Stainless pipes & tubes

Material stainless pipes & tubes grades

Stainless steel is one of the most popular and versatile materials. Stainless steel is an iron alloy that contains a minimum of 10.5% chromium. Alloying elements such as nickel, molybdenum, titanium, carbon, nitrogen, and copper can boost the strength, formability, and other properties of stainless steel. Different alloys offer different levels of corrosion resistance.

316 stainless steel pipe
super austenitic stainless steel
austenitic stainless steel
904l stainless fittings
asme sa 249 tp304 stainless steel tube

SA 249 Stainless Steel

ASME SA 249 standard is for welded stainless steel tubes, the tubes are installed for heat changer, boiler and condenser in heating or cooling deliver system.

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sa269 stainless tube
UNS S32760 SuperDuplex Stainless Steel
UNS S32750 Super Duplex Stainless Steel Plate
duplex 2205
410/HT Stainless Steel plate
tp321 stainless tube
317 stainless tube
310s stainless plate
316 stainless steel pipe
304 stainless tube
17-7 PH

17-7 PH

17-7 PH is a precipitation-hardened stainless steel that is well suited for aerospace and other applications requiring high strength and good corrosion resistance and formability.

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17-4PH

17-4PH

Alloy 17-4 PH is a high strength stainless steel with good hardness and modest corrosion resistance properties, used widely in marine, food processing and petrochemical industries.

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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,GBJapanAmericanKoreaEURIndiaAustraliaTai 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

Stainless pipes & tubes Tolerance

In the production process, because the actual size is difficult to meet the nominal pipe size requirement, that is, it is often larger or smaller than the nominal size, so the standard stipulates that there is a difference between the actual size and the nominal size of the stainless steel pipe. A positive difference is called a positive deviation, and a negative difference is called a negative deviation.

Outside diameter (OD), wall thickness and length are three basic parameters in the process of manufacture and distribution for stainless steel tube & pipe, and these parameters have been standardized.

Outer diameter and wall thickness are particularly important, they are not only the basic support for meeting the design requirements of various types of applications such as strength, stiffness and fluid delivery, but also have a decisive influence on the subsequent processing, therefore, standards for stainless steel tube & pipe diameter and wall thickness of the manufacturing accuracy (tolerance) should been standardized.

What is Nominal Pipe Size and Actual Pipe Size

A. Nominal Pipe size: It is the nominal size specified in the standard such ASME B36.10m, ASME B36.19m, the ideal size that users and manufacturers hope to obtain, and the order size specified in the contract.

B. Actual Pipe size: It is the actual size obtained during the production process, which is often larger or smaller than the nominal size. This phenomenon of being larger or smaller than the nominal size is called deviation.

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.
StandardManufacturing Process & TypeOuter Diameter ToleranceWall Thickness ToleranceOthers
OD (Mm)Class(%)
EN10216-5Hot Finished Seamless Tube219.1-610D1+22.5%T,-15%TT/D≤0.05
T1T/D≤0.09
T2T/D>0.09
30-219.1D2T1
T2
Cold Finished Seamless Tubes≤219.1D3T3
D4T4Agreement
EN10297-2Hot Finished Seamless TubeD1T1
D2T2Agreement
Cold Finished Seamless TubesD3T3
D4T4Agreement
EN10217-7Welded Tubes>168.3D2T3
≤168.3D3T3
D4T3Agreement
EN10296-2Welded Tubes>168.3D2T3
≤168.3D3T3
≤114.3D4T3Agreement
EN10312Welded TubesSeries 1D4T3T=0.6-2 Mm
Series 2D3 – D4T3 – T4T=1-3 Mm

From D1 to D4 class for outer diameter, and T1 to T4 for wall thickness tolerance comply to DIN EN ISO 1127 standard, stainless steel tubes – Dimensions, tolerances and conventional masses per unit length.

ASTM

A511

seamless stainless tubing for use in mechanical applications

ASTM

A556

seamless cold-drawn carbon steel tubes

Stainless Steel Density

Stainless steel density refers to substance mass per unit volume, it is one of typical property of stainless steel, commonly, density of stainless steel range from 7600 kg/m3 to 8000 kg/m3.

Stainless steel is a wide used material, containing at least 10.5% of Chromium, and other elements added to form stainless steel structure, these elements have Carbon, Silicon, Manganese, Phosphorus, Sulfur, Nickel, Molybdenum, Titanium and Copper, it is noted as high strength and excellent corrosion resistance.

Densities change depending on these alloy elements changing, different alloy content have different density value, even it is the same grade, it is difficult to calculate accurate density values, theoretic density value is given below for reference.

The following is the comparison of several commonly used stainless steel density, data may not be completely accurate, only for reference.

  • Material 201, 202, 301, 302, 304, 304L, 305, 321
  • Density 7.93 7.93 7.93 7.93 7.93 7.93 7.93 7.93

Seamless Tube Manufacturing Process

Seamless tubes are generally made in complex steps starting with the drilled hollows from billets, by cold drawing and cold rolling manufacturing process with cold drawing & cold rolling machines.

Stainless steel pipe polishing

Stainless steel pipe doesn’t look all shiny and new right off the welding line. In fact, it looks burnt and kind of charred. Polishing it will give it that mirror finish (or satin silver finish) that makes it such an attractive accessory. Stainless steel pipe polishing is an important process for manufactures and architectural applications. Polishing stainless steel pipes creates a uniform and consistent surface finish–vital for tank manufactures and OEMs supplying products to the chemical and pharmaceutical industries.

Beveling

Beveling Stainless Steel pipes contain one end angled, so that it mates with a complementary pipe end. Pipes can be beveled for certain applications in order to make welding of stainless steel pipes easier, which saves weld prep time and money compared to hand cutting.

Heat treating & Annealing

Stainless steel pipe annealing is an important production process and the heat treatment is mostly carried out under controlled conditions to avoid carburization, decarburization and scaling on the metal surface. Stainless steel pipe annealing is a solution treatment employed for recrystallizing the work-hardened austenitic stainless steels and drawing chromium carbides. In addition, stainless steel pipe annealing removes stresses occurred during sold-working, and homogenizes dendritic stainless steel welds.

UT testing

Ultrasonic Testing (UT) utilizes sound energy at high frequencies to provide examinations and measurements of the stainless steel product. This aids in flaw detection/evaluation, dimensional measurements, etc.

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Stainless pipe length cutting

We offer Dynamic Waterjet Cutting, Plasma Cutting, Laser Cutting as part of our full line of stainless steel processing services

Stainless steel tube bending

We bend pipe and tube to your specification using our high precision machinery. 18 years of expertise in producing high quality bends with tight bend radius. We can bend tube and pipe at most diameters from 25 mm to 76 mm diameter in a wide range of materials including mild steel, stainless steel and others up to 6-meter lengths.

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Range applications of Stainless pipes & tubes

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:

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.

Stainless steel grades listed in the international standard ISO 15510:2010

Comparative designations of grades with similar composition from other important standards.
(listed by type of steel structure and by increasing intermediate 3-digits code of the ISO name)
TypeISO-Name (1)ISO DesignationENUNSAISIJISGB(国标)
M4119-410-92-CX13CrMo131.4119()SUS410J1S45710
M4024-410-09-EX15Cr131.4024SUS410
M4006-410-00-IX12Cr131.4006S41000410SUS410S41010
M4415-415-92-EX2CrNiMoV13-5-21.4415
M4313-415-00-IX3CrNiMo13-41.4313S41500SUSF6NMS41595
M4642-416-72-JX13CrPb131.4642()SUS410F2
M4005-416-00-IX12CrS131.4005S41600416SUS416S41617
M4038-420-00-IX52Cr131.4038()S42000
M4039-420-09-IX60Cr131.4039()
M4419-420-97-EX38CrMo141.4419S35830
M4110-420-69-EX55CrMo141.411
M4116-420-77-EX50CrMoV151.4116
M4035-420-74-EX46CrS131.4035
M4034-420-00-IX46Cr131.4034S42000S42040
M4643-420-72-JX33CrPb131.4643()SUS420F2
M4029-420-20-IX33CrS131.4029S42020420FSUS420FS42037
M4031-420-00-IX39Cr131.4031S42000420S42040
M4028-420-00-IX30Cr1 31.4028S42000420SUS420J2S42030
M4021-420-00-IX20Cr131.4021S42000420SUS420J1S42020
M4923-422-77-EX22CrMoNiV12-11.4923
M4929-422-00-IX23CrMoWMnNiV12-1-11.4929()S42200422SUH616S47220
M4058-429-99-JX33Cr161.4058()SUS429J1
M4019-430-20-IX14CrS171.4019,1.4104S43020430FS11717
M4418-431-77-EX4CrNiMo16-5-11.4418
M4123-431-77-EX40CrMoVN16-21.4123
M4057-431-00-XX17CrNi16-21.4057S43100431SUS431S43120
M4122-434-09-IX39CrMo17-11.4122
M4766-440-77-XX80CrSiNi20-21.4766()SUH4S48380
M4025-440-74-JX110CrS171.4025()"440F"SUS440FS44097
M4023-440-04-IX110Cr171.4023()S44004440CSUS440CS44096
M4041-440-03-XX85Cr171.4041()S44003440BSUS440BS44080
M4040-440-02-XX68Cr171.4040()S44002440ASUS440AS44070
M4916-600-77-JX18CrMnMoNbVN121.4916()SUH600S46250
M-PH4534-138-00-XX3CrNiMoAl13-8-31.4534S13800S51380
M-PH4594-155-92-EX5CrNiMoCuNb14-51.4594
M-PH4532-157-00-IX8CrNiMoAl15-7-21.4532S15700S51570
M-PH4542-174-00-IX5CrNiCuNb16-41.4542S17400"630"SUS630S51740
M-PH4568-177-00-IX7CrNiAl17-71.4568S17700"631"SUS631S51700
M-PH4457-350-00-XX9CrNiMoN17-5-31.4457()S35000S51750
M-PH4530-455-77-EX1CrNiMoAlTi12-9-21.453
M-PH4596-455-77-EX1CrNiMoAlTi12-10-21.4596
M-PH4645-469-10-UX2CrNiMoCu AlTi12-9-4-3 *)1.4645()S46910
M-PH4644-662-20-UX4NiCrMoTiMnSiB26-14-3-21.4644()S66220
F4523-182-35-IX2CrMoTiS18-21.4523S18235
F4724-405-77-IX10CrAlSi131.4724
F4002-405-00-IX6CrAl131.4002S40500405SUS405S11348
F4516-409-75-IX6CrNiTi121.4516S40975
F4720-409-00-IX2CrTi121.472S40900409SUH409LS11163
F4030-410-90-XX2Cr121.4030()SUS410LS11203
F4003-410-77-IX2CrNi121.4003S41003S11213
F4000-410-08-IX6Cr131.4S41008SUS410SS41008
F4595-429-71-IX1CrNb151.4595
F4589-429-70-EX5CrNiMoTi15-21.4589
F4012-429-00-XX10Cr151.4012()S42900429SUS429S11510
F4742-430-77-IX10CrAlSi181.4742
F4017-430-91-EX6CrNi17-11.4017
F4511-430-71-IX3CrNb171.4511SUS430LX
F4664-430-75-JX2CrCuTi181.4664()SUS430J1L
F4520-430-70-IX2CrTi171.452SUS430LX
F4510-430-35-IX3CrTi171.451S43035439SUS430LXS11863
F4004-430-20-IX7CrS171.4004()S43020430FSUS430FS11717
F4016-430-00-IX6Cr171.4016S43000430SUS430S11710
F4113-434-00-IX6CrMo17-11.4113S43400434SUS434S11790
F4609-436-77-JX2CrMo191.4609()SUS436J1L
F4513-436-00-JX2CrMoNbTi18-11.4513()S43600436SUS436LS11862
F4526-436-00-IX6CrMoNb17-11.4526S43600436S11770
F4509-439-40-XX2CrTiNb181.4509S43940SUS430LXS11873
F4764-442-72-JX8CrAl19-31.4764()SUH21
F4521-444-00-IX2CrMoTi18-21.4521S44400444SUS444S11972
F4621-445-00-EX2CrNbCu211.4621S44500
F4128-445-92-JX2CrMo23-11.4128()
F4762-445-72-IX10CrAlSi251.4762
F4129-445-92-JX2CrMo23-21.4129()
F4750-446-60-UX2CrMoNi27-4-21.4750()S44660
F4131-446-92-CX1CrMo26-11.4131(),1.4749S44627SUSXM27S12791
F4749-446-00-IX15CrN261.4749S44600446SUH446S12550
F4135-447-92-CX1CrMo30-21.4135()S44700SUS447J1S13091
A4615-201-75-EX3CrMnNiCu 15-8-5-3 *)1.4615
A4371-201-53-IX2CrMnNiN17-7-51.4371S20153
A4618-201-76-EX9CrMnNiCu 17-8-5-21.4618
A4617-201-76-JX6CrNiMnCu17-8-4-21.4617()SUS304J2
A4372-201-00-IX12CrMnNiN17-7-51.4372S20100201SUS201S35350
A4369-202-91-IX11CrNiMnN19-8-61.4369
A4890-202-09-XX53CrMnNiN21-9-41.4890()SUH35S35650
A4373-202-00-IX12CrMnNiN18-9-51.4373S20200202SUS202S35450
A4597-204-76-IX8CrMnCuN17-8-31.4597
A4982-215-00-EX10CrNiMoMnNbVB15-10-11.4982S21500
A4318-301-53-IX2CrNiN18-71.4318S30153"301LN"SUS301LS30153
A4319-301-00-IX5CrNi17-71.4319S30100301SUS301S30110
A4310-301-00-IX10CrNi18-81.431S30100301S30110
A4326-302-15-IX12CrNiSi18-9-31.4326()S30215"302Si"SUS302BS30240
A4325-302-00-EX9CrNi18-91.4325S30200302SUS302S30210
A4667-303-76-JX12CrNiCuS18-91.4667()[1.4570]"303Cu"SUS303Cu
A4625-303-23-XX12CrNiSe18-91.4625()S30323303SeSUS303SeS30327
A4305-303-00-IX10CrNiS18-91.4305S30300303SUS303S30317
A4570-303-31-IX6CrNiCuS18-9-21.457S30331"303Cu+"
A4567-304-30-IX3CrNiCu18-9-41.4567S30430SUSXM7S30488
A4818-304-15-EX6CrNiSiNCe19-101.4818S30415S30450
A4567-304-76-IX6CrNiCu17-8-21.4567SUS304J1S30480
A4311-304-53-IX2CrNiN18-91.4311S30453"304LN"SUS304LNS30453
A4650-304-75-EX2CrNiCu19-101.465"304LCu"SUS304LS30403
A4948-304-09-IX7CrNi18-91.4948S30409"304H"S30409
A4567-304-98-XX6CrNiCu18-9-21.4567S30431"304Cu"SUS304J3S30480
A4649-304-76-JX6CrNiCu19-9-11.4649()"304Cu"SUS304CuS30488
A4315-304-51-IX5CrNiN19-91.4315S30451304NSUS304N1S30458
A4306-304-03-IX2CrNi19-111.4306S30403304LSUS304LS30403
A4307-304-03-IX2CrNi18-91.4307,[1.4306]S30403304LSUS304LS30403
A4301-304-00-IX5CrNi18-91.4301S30400304SUS304S30408
A4828-305-09-IX15CrNiSi20-121.4828
A4884-305-00-XX6CrNiSi18-13-41.4884()S30500SUSXM15J1S38148
A4303-305-00-IX6CrNi18-121.4303S30500305SUS305S30510
A4835-308-15-UX7CrNiSiNCe21-111.4835S30815
A4824-308-09-JX20CrNiN22-111.4824()SUH37S30850
A4496-309-51-JX4CrNiMoN25-14-11.4496()SUS317J2
A4833-309-08-IX18CrNi23-131.4833S30908"309S"SUH309S30908
A4950-309-08-EX6CrNi23-131.495S30908309SSUS309SS30908
A4537-310-92-EX1CrNiMoCuN25-25-51.4537
A4335-310-02-IX1CrNi25-211.4335S31002
A4466-310-50-EX1CrNiMoN25-22-21.4466S31050S31053
A4845-310-08-EX8CrNi25-211.4845S31008"310S"SUS310SS31008
A4845-310-09-XX23CrNi25-211.4845S31008"310S"SUH310S31020
A4951-310-08-IX6CrNi25-201.4951S31008310SSUS310SS31008
A4659-312-66-IX1CrNiMoCuNW24-22-61.4659S31266
A4547-312-54-IX1CrNiMoCuN20-18-71.4547S31254SUS312LS31252
A4971-314-79-IX5CrNiCoMoWMnVNNb21-20-20-3-3-21.4971SUH661
A4841-314-00-EX15CrNiSi25-211.4841S31400314
A4660-315-77-IX6CrNiCuSiMo19-10-3-21.4660()SUS315J1
A4648-315-77-IX6CrNiSiCuMo19-13-3-3-11.4648()SUS315J2
A4665-316-76-JX6CrNiMoCu18-12-2-21.4665()SUS316J1
A4571-316-35-IX6CrNiMoTi17-12-21.4571S31635SUS316TiS31668
A4449-316-76-EX3CrNiMo18-12-31.4449
A4647-316-75-XX2CrNiMoCu18-14-2-21.4647()SUS316J1LS31683
A4432-316-03-IX2CrNiMo17-12-31.4432S31603SUS316LS31603
A4580-316-40-IX6CrNiMoNb17-12-21.458S31640S31678
A4867-316-77-JX40CrNi1 5-141.4867()SUH31
A4578-316-76-EX3CrNiCuMo17-11-3-21.4578
A4910-316-77-EX3CrNiMoBN17-13-31.491
A4429-316-53-IX2CrNiMoN17-12-31.4429S31653"316LN"SUS316LNS31653
A4406-316-53-IX2CrNiMoN17-11-21.4406S31653"316LN"SUS316LNS31653
A4495-316-51-JX6CrNiMoN17-12-31.4495()S31651316NSUS316NS31658
A4435-316-91-IX2CrNiMo18-14-31.4435S31603316LSUS316LS31603
A4404-316-03-IX2CrNiMo17-12-21.4404S31603316LSUS316LS31603
A4494-316-74-JX6CrNiMoS17-12-31.4494()S31620316FSUS316F
A4401-316-00-IX5CrNiMo17-12-21.4401S31600316SUS316S31608
A4436-316-00-IX3CrNiMo17-12-31.4436S31600316SUS316S31608
A4476-317-92-XX3CrNiMo18-16-51.4476()SUS317J1S31794
A4438-317-03-IX2CrNiMo19-14-41.4438S31703SUS317LS31703
A4483-317-26-IX2CrNiMoN18-15-51.4483()S31726S31723
A4879-317-77-JX30CrNiMoPB20-11-21.4879()SUH38
A4439-317-26-EX2CrNiMoN17-13-51.4439S31726S31723
A4445-317-00-UX6CrNiMo19-13-41.4445()S31700317SUS317S31708
A4434-317-53-IX2CrNiMoN18-12-41.4434S31753"317LN"SUS317LNS31753
A4941-321-09-IX6CrNiTiB18-101.4941S32109S32169
A4940-321-09-IX7CrNiTi18-101.4940,1.4541S32109"321H"SUS321HS32169
A4541-321-00-IX6CrNiTi18-101.4541S32100321SUS321S32168
A4652-326-54-IX1CrNiMoCuN24-22-81.4652S32654S32652
A4565-345-65-IX2CrNiMnMoN25-18-6-51.4565S34565S34553
A4961-347-77-EX8CrNiNb16-131.4961
A4912-347-09-IX7CrNiNb18-101.4912S34709"347H"SUS347H
A4550-347-00-IX6CrNiNb18-101.455S34700347SUS347S34778
A4854-353-15-EX6NiCrSiNCe35-251.4854S35315
A4389-384-00-IX3NiCr18-161.4389()S38400384SUS384S38408
A PH4980-662-86-XX6NiCrTiMoVB25-15-21.4980,1.4606S66286()"660"SUH660S51525
A4657-080-20-UX4NiCrCuMo35-20-4-31.4657()N08020
A4563-080-28-IX1NiCrMoCu31-27-41.4563N08028
A4864-083-77-XX13NiCr35-161.4864R20033,N08330SUH330S33010
A4478-083-67-UX2NiCrMoN25-21-71.4478()N08367SUS836L
A4958-088-77-EX5NiCrAlTi31-201.4958
A4959-088-77-EX8NiCrAlTi32-201.4959
A4959-088-11-UX8NiCrAlTi33-211.4959N08811
A4876-088-00-IX8NiCrAlTi32-211.4876N08800"800"NCF800
A4959-088-10-UX7NiCrAlTi33-211.4959N08810"800H"NCF800H
A4479-089-36-UX1NiCrMoMnN34-27-6-51.4479()N08936
A4529-089-26-IX1NiCrMoCuN25-20-71.4529N08926"926"
A4539-089-04-IX1NiCrMoCu25-20-51.4539N08904"904L"SUS890LS39042
A4656-089-04-IX1NiCrMoCu22-20-5-21.4656()
AF4460-312-00-IX3CrNiMoN27-5-21.446S31200S22553
AF4481-312-60-JX2CrNiMoN25-7-31.4481()S31260SUS329J4LS22583
AF4424-315-00-IX2CrNiMoSiMnN19-5-3-2-21.4424S31500
AF4462-318-03-IX2CrNiMoN22-5-31.4462S32205,S3F51,F60SUS329J3LS22053
AF4162-321-01-EX2CrMnNiN21-5-1 *)1.4162S32101
AF4062-322-02-UX2CrNiN22-2 *)1.4062S32202
AF4362-323-04-IX2CrNiN23-41.4362S32304S23043
AF4507-325-50-XX3CrNiMoCuN26-6-3-21.4507S32550S25554
AF4507-325-20-IX2CrNiMoCuN25-6-31.4507S32520
AF4501-327-60-IX2CrNiMoCuWN25-7-41.4501S32760S27603
AF4410-327-50-EX2CrNiMoN25-7-41.441S32750S25073
AF4658-327-07-UX2CrNiMoCoN28-8-5-1 *)1.4658()S32707
AF4477-329-06-EX2CrNiMoN29-7-2 *)1.4477S32906
AF4480-329-00-UX6CrNiMo26-4-21.4480()S32900329SUS329J1
AF4485-332-07-UX2CrNiMoN31-8-41.4485()S33207

A:austenitic *) patented grade ” ” : ‘AISI like’ common name
F:ferritic M:martensitic () EN nb issued for ISO grade
AF: austenitic-ferritic PH:Precipitation Hardening

(1)The ISO name is composed of 4 parts structure XXXX-YYY-ZZ-T
XXXX is a remindr of the European coding, YYY a reminder of the old AISI codes, ZZ an ISO coding and T an additional information
T is a letter from :
-C Chinese based composition -I genuine ISO composition -U USA based composition
-E European based composition -J Japanese based composition -X comp. origin. from more 2 stds