Home > Stainless Steel Tube > EN 10217-7 1.4301, 1.4307, 1.4404 Welded Tube

EN 10217-7 1.4301, 1.4307, 1.4404 Welded Tube

EN10217-7 1.4301, 1.4307, 1.4404 Welded Tube

DONGSHANG Stainless produce welded stainless steel tube for pressure purposes, manufacturing and design comply with part 7 of EN 10217 standard, welded tubes made of Austenitic or austenitic-ferritic stainless steel applied for many industries, not only under room temperature conditions, and low as well as elevated temperature environment.

Stainless steels include 1.4301, 1.4307, 1.4404, 1.44.1 and 1.4571, delivery conditions have W1R, W2Rb, W2Ab and other surface finish, Test category 1 (TC1) or Test category 2 (TC2) for inspection and testing of tubes.

EN 10217-7 1.4301, 1.4307, 1.4404 Welded Tube Specifications

StandardEN 10217-7
Tube TypeWelded Tube
Grades1.4301, 1.4307, 1.4404, 1.4541, 1.4571, 1.4462
FinishingAs Welded, Annealing Pickling, Bright Annealing, Polished
Outside Diameter6 Up To 508 Mm
Thickness0.5 Up To 8 Mm

The tubes will be manufactured from hot or cold rolled plate, sheet or strip 1D, 2D, 2E, 2B surfaces, by longitudinally arc or laser welding. DONGSHANG stainless offers descaled, heat treated, bright annealing condition welded tubes, like symbol W2(b), W2A(b), W2R(b).

We use automatic TIG welding type to weld tubes and remove the inside seam and external seam, making the inner and outer surfaces smoother and perfect roughness.

EN 10217-7 Common Steel Grades And Equivalent AISI Grades

Steel NameSteel NumberAISI Grade
X2CrNi18-91.4307304L
X5CrNi18-101.4301304
X2CrNiMo17-12-21.4404316L
X6CrNiTi18-101.4541321
X6CrNiMoTi17-12-21.4571316Ti
X2CrNiMo18-15-41.4438317L
X2CrNiMoN22-5-31.44622205

When the tube is finished, chemical composition analysis should be carried out according to EN 10217-7, to ensure the correct grade by direct-reading spectrometer or PMI tester.

The tolerance on outside diameter and wall thickness of tubes should be limited according to EN ISO 1127, precise tolerance should be minimized as much as possible, which has a perfect performance for many applications.

Tolerances On Outside Diameter And Wall Thickness Of Tubes

Outside Diameter D MmTolerance On Outside Diameter DTolerance On Wall Thickness T
Tolerance ClassPermissible DeviationTolerance ClassPermissible Deviation
D ≤ 168,3D3± 0,75 % Or ± 0,3 Mm Whichever Is The GreaterT3± 10 % Or ± 0,2 Mm Whichever Is The Greater
D4a± 0,5 % Or ± 0,1 Mm Whichever Is The Greater
D >168,3D2± 1,0 %

EN 10217-7 Standard Delivery Conditions

SymbolType of delivery condition aSurface condition
W0 bWelded from hot or cold rolled plate, sheet or strip 1D, 2D, 2E, 2BAs welded
W1 bWelded from hot rolled plate, sheet or strip 1D, descaledMetallically clean
W1A bWelded from hot rolled plate, sheet or strip 1D, heat treated, descaledMetallically clean
W1R bWelded from hot rolled plate, sheet or strip 1D, bright annealed.Metallically bright
W2 bWelded from cold rolled plate, sheet or strip 2D, 2E, 2B, descaled Metallically clean
W2A bWelded from cold rolled plate, sheet or strip 2D, 2E, 2B, heat treated, descaledExcept for the weld, essentially smoother than for types W1 and W1A
W2R bWelded from cold rolled plate, sheet or strip 2D, 2E, 2B, bright annealedMetallically bright
WCAWelded from hot rolled or cold rolled plate, sheet or strip 1D, 2D, 2E, 2B, heat treated if appropriate, at least 20 % cold formed, heat treated, with re-crystallized weld metal, descaledMetallically clean, weld scarcely recognizable
WCRWelded from hot rolled or cold rolled plate, sheet or strip 1D, 2D, 2E, 2B, heat treated if appropriate, at least 20 % cold formed, bright annealed, with re-crystallized weld metalMetallically bright, weld scarcely recognizable
WG  Ground cMetallically bright-ground, the type and degree of grinding shall be agreed at the time of enquiry and order d
WP  Polished cMetallically bright-polished, the type and degree of polishing shall be agreed at the time of enquiry and order d
Symbols of flat products according to EN 10088-2.For tubes ordered with smoothed welds (“bead worked”) letter “b” shall be appended to the symbol of the  type of the condition (e. g. W2Ab).Conditions W2, W2A, W2R, WCA or WCR are usually used as the starting condition.It should be indicated in the enquiry and order whether grinding or polishing is to be performed internally or externally, or internally and externally.

Testing And Inspection On EN 10217-7 Welded Tube

All the inspection and testing finished on welded tubes, 3.1 type Mill Test Certificate should be provided according to EN 10204, The quality control department guarantees tubes high quality and good performance in various applications.

  • Tensile test
  • Flattening test
  • Leak tightness test
  • Dimensional inspection
  • Visual examination
  • Eddy current
  • Ultrasonic test
  • Radiographic test

EN 10217-7 Welded Tube Marking

DONGSHANG – 60,3 X 2,0 – EN 10217-7 – X5CrNi18-10 – TC1 – W2A

EN10217-7 Steel Grades Chemical Composition

Steel GradesChemical Composition (% By Mass – Max Unless Stated)
Steel NameSteel NumberCSiMnPSCrMoNiCuNOthersIn 10296-2?
Austenitic Steels
X2CrNi18-91.43070.0301.002.000.0450.01517.5/19.58.0/10.00.11Yes
X2CrNi19-111.43060.0301.002.000.0450.01518.0/20.010.0/12.00.11Yes
X2CrNiN18-101.43110.0301.002.000.0450.01517.0/19.58.5/11.50.12/0.22Yes
X5CrNi18-101.43010.071.002.000.0450.01517.0/19.58.0/10.50.11Yes
X6CrNiTi18-101.45410.081.002.000.0450.01517.0/19.09.0/12.0Ti 5xC/0.70Yes
X6CrNiNb18-101.45500.081.002.000.0450.01517.0/19.09.0/12.0Nb 10xC/1.00Yes
X2CrNiMo17-12-21.44040.0301.002.000.0450.01516.5/18.52.0/2.510.0/13.00.11Yes
X5CrNiMo17-12-21.44010.071.002.000.0450.01516.5/18.52.0/2.510.0/13.00.11Yes
XCrNiMoTi17-12-21.45710.081.002.000.0450.01516.5/18.52.00/2.5010.5/13.5Ti 5xC/0.70Yes
X2CrNiMo17-12-31.44320.0301.002.000.0450.01516.5/18.52.50/3.0010.5/13.00.11Yes
X2CrNiMoN17-13-31.44290.0301.002.000.0450.01516.5/18.52.50/3.0011.0/14.00.12/0.22Yes
X3CrNiMo17-13-31.44360.051.002.000.0450.01516.5/18.52.50/3.0010.5/13.00.11Yes
X2CrNiMo18-14-31.44350.0301.002.000.0450.01517.0/19.02.50/3.0012.5/15.00.11Yes
X2CrNiMoN17-13-51.44390.0301.002.000.0400.01516.5/18.54.00/5.0012.5/14.50.12/0.22Yes
X2CrNiMo18-15-41.44380.0301.002.000.0450.01517.5/19.53.00/4.0013.0/16.00.11No
X1NiCrMoCu31-27-41.45630.0200.702.000.0300.01026.0/28.03.00/4.0030.0/32.00.70/1.500.11No
X1CrNiMoCu25-20-51.45390.0200.702.000.0300.01019.0/21.04.00/5.0024.0/26.01.20/2.000.15Yes
X1CrNiMoCuN20-18-71.45470.0200.701.000.0300.01019.5/20.56.00/7.0017.5/18.50.50/1.000.18/0.25Yes
X1NiCrMoCuN25-20-71.45290.0200.501.000.0300.01019.0/21.06.00/7.0024.0/26.00.50/1.500.15/0.25No
Austenitic Ferritic Steels
X2CrNiN23-41.43620.0301.002.000.0350.01522.0/24.00.10/0.603.5/5.50.10/0.600.05/0.20Yes
X2CrNiMoN22-5-31.44620.0301.002.000.0350.01521.0/23.02.50/3.504.5/6.50.10/0.22Yes
X2CrNiMoN25-7-41.44100.0301.002.000.0350.01524.0/26.03.00/4.506.0/8.00.20/0.35Yes
X2CrNiMoCuWN25-7-41.45010.0301.001.000.0350.01524.0/26.03.00/4.006.0/8.00.50/1.000.20/0.30W 0.50/1.00No

BS EN 10217-7 Mechanical Properties

 Tensile properties at RTImpact properties
Steel gradeProof StrengthTensile strengthElongationMinimum average of 3 Charpy (J)
Rp0.2Rp1.0RmA min (%)at RT at -sub-zero temperature1
Steel nameSteel numberMPaMPaMPalongtranslongtranstrans
Austenitic steels
X2CrNi18-91.4307180215470-67040351006060
X2CrNi19-111.4306180215460-68040351006060
X2CrNiN18-101.4311270305550-76035301006060
X5CrNi18-101.4301195230500-70040351006060
X6CrNiTi18-101.4541200235500-73035301006060
X6CrNiNb18-101.4550205240510-74035301006060
X2CrNiMo17-12-21.4404190225490-69040301006060
X5CrNiMo17-12-21.4401205240510-71040301006060
XCrNiMoTi17-12-21.4571210245500-73035301006060
X2CrNiMo17-12-31.4432190225490-69040301006060
X2CrNiMoN17-13-31.4429295330580-80035301006060
X3CrNiMo17-13-31.4436205240510-71040301006060
X2CrNiMo18-14-31.4435190225490-69040301006060
X2CrNiMoN17-13-51.4439285315580-80035301006060
X2CrNiMo18-15-41.4438220250490-69035301006060
X1NiCrMoCu31-27-41.4563215245500-75040351209060
X1CrNiMoCu25-20-51.4539220250520-72035301209060
X1CrNiMoCuN20-18-71.4547300340650-85035301006060
X1NiCrMoCuN25-20-71.4529300340600-80040401209060
Duplex – Austenitic ferritic steels
X2CrNiN23-41.4362400—-600-82025251209040
X2CrNiMoN22-5-31.4462450—-700-92025201209040
X2CrNiMoN25-7-41.4410550—-800-1000202010010040
X2CrNiMoCuWN25-7-41.4501550—-800-1000202010010040

1.For austenitic steels the sub-zero test temperature is -196 deg C. For duplex steels, it is – 40 deg C.

Steel gradeRp0.2 min MPa at a temperature of (deg C)
Steel nameSteel number50100150200250300350400450500550
X2CrNi18-91.43071651471321181081009489858180
X2CrNi19-111.43061651471321181081009489858180
X2CrNiN18-101.4311255205175157145136130125121119118
X5CrNi18-101.430118015714212711811010498959290
X6CrNiTi18-101.4541190176167157147136130125121119118
X6CrNiNb18-101.4550195177167157147136130125121119118
X2CrNiMo17-12-21.440418216615213712711811310810310098
X5CrNiMo17-12-21.4401193177162147137127120115112110108
XCrNiMoTi17-12-21.4571202185177167157145140135131129127
X2CrNiMo17-12-31.443218216615213712711811310810310098
X2CrNiMoN17-13-31.4429260211185167155145140135131129127
X3CrNiMo17-13-31.4436195177162147137127120115112110108
X2CrNiMo18-14-31.443518016515013712711911310810310098
X2CrNiMoN17-13-51.4439260225200185175165155150  —  —  —
X2CrNiMo18-15-41.4438200172157147137127120115112110108
X1NiCrMoCu31-27-41.4563210190175160155150145135125120115
X1CrNiMoCu25-20-51.4539216205190175160145135125115110105
X1CrNiMoCuN20-18-71.4547267230205190180170165160153148  —
X2CrNiMoCuWN25-7-41.4529270230210190180170165160130120105

Standard EN 10217-7 Welded Tube Dimensions and Weight

OD, mmWall, mmWeight, KG/M NORM
6.001.000.125EN 10217-7 TC1
8.001.000.175EN 10217-7 TC1
8.001.500.244EN 10217-7 TC1
10.001.000.225EN 10217-7 TC1
10.001.500.319EN 10217-7 TC1
12.001.000.275EN 10217-7 TC2
12.001.500.394EN 10357
12.001.500.394EN 10217-7 TC1
12.002.000.501EN 10217-7 TC1
14.001.000.326EN 10217-7 TC2
14.001.500.470EN 10217-7 TC1
14.002.000.601EN 10217-7 TC1
15.001.000.351EN 10217-7 TC1
15.001.500.507EN 10217-7 TC1
15.002.000.651EN 10217-7 TC1
16.001.000.376EN 10217-7 TC1
16.001.500.545EN 10217-7 TC1
16.002.000.701EN 10217-7 TC1
17.201.600.625EN 10217-7 TC1
17.202.000.761EN 10217-7 TC1
17.202.300.858EN 10217-7 TC1
18.001.000.426EN 10217-7 TC1
18.001.000.426EN 10217-7 TC1
18.001.000.426EN 10217-7 TC2
18.001.500.620EN 10217-7 TC1
18.001.500.620EN 10217-7 TC2
18.002.000.801EN 10217-7 TC1
19.001.500.657EN 10217-7 TC1
20.001.000.476EN 10217-7 TC1
20.001.000.476EN 10217-7 TC1
20.001.500.695EN 10217-7 TC1
20.001.500.695EN 10217-7 TC1
20.002.000.901EN 10217-7 TC1
20.002.000.901EN 10217-7 TC1
20.002.000.901EN 10217-7 TC2
21.301.600.789EN 10217-7 TC1
21.302.000.967EN 10217-7 TC1
21.302.000.967EN 10217-7 TC2
21.302.601.217EN 10217-7 TC1
21.302.601.217EN 10217-7 TC1
21.302.651.238EN 10217-7 TC1
22.001.000.526EN 10357
22.001.500.770EN 10217-7 TC1
22.002.001.002EN 10217-7 TC1
23.001.500.808EN 10357
25.001.000.601EN 10217-7 TC1
25.001.000.601EN 10217-7 TC2
25.001.250.743EN 10217-7 TC1
25.001.500.883EN 10217-7 TC1
25.001.500.883EN 10217-7 TC1
25.001.500.883EN 10217-7 TC2
25.002.001.152EN 10217-7 TC1
25.002.001.152EN 10217-7 TC1
25.002.001.152EN 10217-7 TC2
25.002.501.409EN 10217-7 TC1
25.003.001.653EN 10217-7 TC1
25.401.250.756EN 10357
25.401.500.898EN 10357
26.901.601.014EN 10217-7 TC1
26.902.001.247EN 10217-7 TC1
26.902.001.247EN 10217-7 TC1
26.902.001.247EN 10217-7 TC2
26.902.601.582EN 10217-7 TC1
26.902.601.582EN 10217-7 TC1
26.902.651.609EN 10217-7 TC1
28.001.000.676EN 10357
28.001.000.676EN 10357
28.001.000.676EN 10357
28.001.500.995EN 10357
28.001.500.995EN 10357
28.001.500.995EN 10357
28.001.500.995EN 10217-7 TC1
28.002.001.302EN 10217-7 TC1
29.001.501.033EN 10357
29.001.501.033EN 10357
30.001.000.726EN 10217-7 TC1
30.001.501.070EN 10217-7 TC1
30.002.001.402EN 10357
30.002.001.402EN 10217-7 TC1
30.002.001.402EN 10217-7 TC1
30.002.001.402EN 10217-7 TC2
30.002.501.722EN 10217-7 TC1
31.801.250.956EN 10357
32.001.501.146EN 10217-7 TC1
32.001.501.146EN 10217-7 TC1
32.002.001.502EN 10217-7 TC1
33.701.601.286EN 10217-7 TC1
33.702.001.588EN 10217-7 TC1
33.702.001.588EN 10217-7 TC1
33.702.001.588EN 10217-7 TC2
33.702.602.025EN 10217-7 TC1
33.702.602.025EN 10217-7 TC1
33.702.602.025EN 10217-7 TC2
33.703.202.444EN 10217-7 TC1
33.703.202.444EN 10217-7 TC1
34.001.000.826EN 10357
34.001.000.826EN 10357
34.001.000.826EN 10357
34.001.501.221EN 10357
34.001.501.221EN 10357
34.001.501.221EN 10357
35.001.501.258EN 10357
35.001.501.258EN 10357
35.001.501.258EN 10217-7 TC1
35.002.001.653EN 10217-7 TC1
38.001.501.371EN 10217-7 TC1
38.001.501.371EN 10217-7 TC1
38.002.001.803EN 10217-7 TC1
38.101.251.153EN 10357
40.001.000.977EN 10357
40.001.000.977EN 10357
40.001.000.977EN 10357
40.001.501.446EN 10357
40.001.501.446EN 10357
40.001.501.446EN 10357
40.002.001.903EN 10217-7 TC1
40.002.001.903EN 10217-7 TC1
40.002.001.903EN 10217-7 TC1
41.001.501.484EN 10357
41.001.501.484EN 10357
42.001.501.521EN 10217-7 TC1
42.401.601.635EN 10217-7 TC1
42.402.002.023EN 10217-7 TC1
42.402.002.023EN 10217-7 TC1
42.402.002.023EN 10217-7 TC1
42.402.002.023EN 10217-7 TC2
42.402.602.591EN 10217-7 TC1
42.402.602.591EN 10217-7 TC2
42.403.203.141EN 10217-7 TC1
42.403.203.141EN 10217-7 TC1
44.501.501.615EN 10217-7 TC1
44.501.501.615EN 10217-7 TC2
44.502.002.128EN 10217-7 TC2
48.301.601.871EN 10217-7 TC1
48.302.002.319EN 10217-7 TC1
48.302.002.319EN 10217-7 TC2
48.302.602.975EN 10217-7 TC1
48.302.602.975EN 10217-7 TC1
48.302.602.975EN 10217-7 TC2
48.303.203.614EN 10217-7 TC1
48.303.203.614EN 10217-7 TC1
48.303.604.029EN 10217-7 TC1
50.001.501.822EN 10217-7 TC1
50.001.501.822EN 10217-7 TC1
50.001.501.822EN 10217-7 TC1
50.002.002.404EN 10217-7 TC1
50.002.002.404EN 10217-7 TC1
50.003.003.531EN 10217-7 TC1
50.801.251.551EN 10357
50.801.501.852EN 10357
51.002.002.454EN 10217-7 TC1
52.001.001.277EN 10357
52.001.001.277EN 10357
52.001.501.897EN 10357
52.001.501.897EN 10357
52.001.501.897EN 10357
53.001.501.934EN 10357
53.001.501.934EN 10357
54.002.002.604EN 10357
54.002.002.604EN 10217-7 TC1
55.001.502.009EN 10217-7 TC1
55.002.002.654EN 10217-7 TC1
57.002.002.754EN 10217-7 TC1
57.002.903.929EN 10217-7 TC1
  60.30  1.60  2.352EN 10217-7 TC1
60.301.602.352EN 10217-7 TC1
60.302.002.920EN 10217-7 TC1
60.302.002.920EN 10217-7 TC2
60.302.603.757EN 10217-7 TC1
60.302.603.757EN 10217-7 TC2
60.302.904.168EN 10217-7 TC2
60.303.655.178EN 10217-7 TC1
63.501.502.329EN 10357
63.501.502.329EN 10357
65.001.502.385EN 10217-7 TC1
65.002.003.155EN 10217-7 TC1
70.001.502.573EN 10357
70.001.502.573EN 10357
70.002.003.405EN 10357
70.002.003.405EN 10357
70.002.003.405EN 10357
70.002.003.405EN 10217-7 TC1
70.002.904.873EN 10217-7 TC1
76.101.502.802EN 10357
76.102.003.711EN 10357
76.102.003.711EN 10357
76.102.003.711EN 10217-7 TC1
76.102.604.785EN 10217-7 TC1
76.102.905.315EN 10217-7 TC1
76.103.005.491EN 10217-7 TC1
76.103.606.535EN 10217-7 TC1
80.001.502.948EN 10217-7 TC1
84.002.004.107EN 10217-7 TC1
85.002.004.157EN 10357
85.002.004.157EN 10357
85.002.004.157EN 10357
88.902.004.352EN 10217-7 TC1
88.902.004.352EN 10217-7 TC2
88.902.605.618EN 10217-7 TC2
88.903.006.453EN 10217-7 TC1
88.903.006.453EN 10217-7 TC2
88.903.657.792EN 10217-7 TC1
88.904.008.504EN 10217-7 TC1
88.905.0010.504EN 10217-7 TC1
100.001.503.70017455 WZ 2.2
101.601.503.760EN 10357
101.602.004.988EN 10357
101.602.004.988EN 10357
101.602.004.988EN 10217-7 TC1
101.602.004.988EN 10217-7 TC1
101.603.007.407EN 10217-7 TC1
104.002.005.108EN 10357
104.002.005.108EN 10357
104.002.005.108EN 10357
104.002.005.108EN 10217-7 TC1
108.002.005.308EN 10217-7 TC1
108.002.606.862EN 10217-7 TC1
108.003.007.888EN 10217-7 TC1
108.004.0010.417EN 10217-7 TC1
108.005.0012.896EN 10217-7 TC1
114.301.504.237EN 10217-7 TC1
114.302.005.624EN 10217-7 TC1
114.302.005.624EN 10217-7 TC2
114.302.607.272EN 10217-7 TC1
114.302.607.272EN 10217-7 TC2
114.303.008.361EN 10217-7 TC1
114.303.609.979EN 10217-7 TC1
114.304.0511.181EN 10217-7 TC1
114.305.0013.684EN 10217-7 TC1
129.002.006.360EN 10357
129.002.006.360EN 10357
129.002.006.360EN 10217-7 TC1
133.002.006.560EN 10217-7 TC1
133.003.009.766EN 10217-7 TC1
133.004.0012.921EN 10217-7 TC1
139.702.006.896EN 10217-7 TC1
139.702.608.926EN 10217-7 TC1
139.703.0010.269EN 10217-7 TC1
139.704.0013.592EN 10217-7 TC1
154.002.007.612EN 10357
154.002.007.612EN 10357
154.002.007.612EN 10217-7 TC1
159.002.007.863EN 10217-7 TC1
159.002.6010.182EN 10217-7 TC1
159.003.0011.719EN 10217-7 TC1
168.302.008.328EN 10217-7 TC1
168.302.6010.788EN 10217-7 TC1
168.303.0012.417EN 10217-7 TC1
168.304.0016.456EN 10217-7 TC1
168.305.0020.445EN 10217-7 TC1
204.002.0010.116EN 10357
204.002.0010.116EN 10217-7 TC1
219.102.0010.872EN 10217-7 TC1
219.102.6014.095EN 10217-7 TC1
219.103.0016.233EN 10217-7 TC1
219.104.0021.544EN 10217-7 TC1
219.105.0026.805EN 10217-7 TC1
254.002.0012.620EN 10217-7 TC1
256.003.0019.010EN 10217-7 TC1
273.002.6017.604EN 10217-7 TC1
273.003.0020.282EN 10217-7 TC1
273.004.0026.943EN 10217-7 TC1
273.005.0033.554EN 10217-7 TC1
273.102.0013.577EN 10217-7 TC1
273.103.0020.250EN 10217-7 TC1
304.002.0015.124EN 10217-7 TC1
306.003.0022.720EN 10217-7 TC1
323.903.0024.106EN 10217-7 TC1
323.904.0032.041EN 10217-7 TC1
355.603.0026.487EN 10217-7 TC1
356.003.0026.517EN 10217-7 TC1
406.403.0030.303EN 10217-7 TC1
355.603.0026.487EN 10217-7 TC1
356.003.0026.517EN 10217-7 TC1
406.403.0030.303EN 10217-7 TC1
Other Sizes Are Available