ST 52 Seamless Pipe

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DIN 2391 ST 52 Seamless Pipe, St52 Pipe Suppliers at best price

St52 Steel Tube Suppliers In India, Check latest Din 2448 St 52 pipe price

ST 52 Seamless Pipe

ST 52 Seamless Pipe

St52 Pipe Suppliers

St52 Pipe Suppliers

Din 2448 St 52

Din 2448 St 52

We offer a wide inventory of quality DIN 2391 ST 52 Pipes as a maker, exporter, stockiest and provider to our household and worldwide customers. We have effectively positioned among the top producers, exporters and providers of predominant quality variety of DIN 2391 ST 52 Pipes. These are manufactured at our very much prepared creation unit utilizing best quality crude material. As a supplier we are responsible for high quality Din 2448 St 52, St52 Pipe Suppliers and St52 Steel Tube Suppliers In India at reasonable cost

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Table of content

Din 2391 ST52 Pipe Specification

ST 52 Pipe Standard DIN2391
Grade St35/St45/St52/ St55 and so on
Minimum Order Quantity 1 Ton
Outside Diameter Ranges 1/8’’~48’’ Or DN6~DN1200 Or 10.3mm~1219mm
ST 52 Pipe Wall Thickness Ranges SCH10~SCH160 Or STD,XS,XXS Or 1.73mm~59.54mm
ST 52 Pipe Length (Custom) Single Random Length 16ft-22ft/4.8m-6.7m
Double Random Length 22ft-35ft/6.7m-10.7m
Fixed Length 16ft-41ft/4.8m-12.5m
Most common Length 6m, 12m
I.D Roughness 0.4-0.8
Inside Diameter Tolerance H7-H10
ST 52 Pipe Type Seamless, Welded
ST 52 Pipe Technique Cold Drawn, ERW and so on

ST 52 Pipe Schedules SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules
Din 2448 St 52 Pipe Origin European, Japanese, Korean, US, Russian, Indian (Strictly No Chinese Material)
Tolerance Cold drawn pipe: +/-0.1mm
Cold rolled pipe: +/-0.05mm
Craft Cold rolled and Cold drawn
Din 2448 St 52 Type Seamless / ERW / Welded / Fabricated
Form Round, Hydraulic Etc
Length Min 3 Meters, Max18 Meters, or according to customer’s requirement
Din 2448 St 52 End Plain End, Beveled End, Treaded
Specialized in Large Diameter ST 52 Pipe, din st 52 welded steel tubes, DIN 2391 St 52 Honed Tube for Hydraulic Cylinder and Pneumatic Cylinder
Additional Testing NACE MR0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.

Din 2448 St 52 Pressure Rating

Maximum Allowable Pressure(psi)
NPS Outside Diameter Schedule
(in) (in) 10 20 30 STD 40 60 XS 80 100 120 140 160 XXS
1/4 0.54 7985 7985 10798 10798
3/8 0.675 6606 6606 9147 9147
1/2 0.84 6358 6358 8575 8575 10908 17150
3/4 1.05 5273 5273 7187 7187 10220 14373
1 1.315 4956 4956 6670 6670 9316 13340
1 1/4 1.66 4133 4133 5638 5638 7380 11276
1 1/2 1.9 3739 3739 5158 5158 7247 10316
2 2.375 3177 3177 4498 4498 7097 8995
2 1/2 2.875 3460 3460 4704 4704 6391 9408
3 3.5 3024 3024 4200 4200 6132 8400
3 1/2 4 2769 2769 3896 3896
4 4.5 2581 2581 3670 3670 4769 5782 7339
5 5.563 2273 2273 3303 3303 4404 5505 6606
6 6.625 2071 2071 3195 3195 4157 5318 6390
8 8.625 1420 1574 1829 1829 2307 2841 2841 3375 4085 4613 5147 4971
10 10.75 1140 1399 1664 1664 2279 2279 2708 3277 3847 4558 5128 4558
12 12.75 961 1268 1441 1560 2160 1922 2644 3244 3843 4324 5042 3843
14 14 875 1092 1313 1313 1533 2079 1750 2625 3283 3829 4375 4921
16 16 766 956 1148 1148 1531 2009 1531 2585 3157 3733 4404 4882
18 18 681 849 1192 1021 1530 2042 1361 2553 3147 3743 4252 4848
20 20 613 919 1225 919 1455 1989 1225 2526 3138 3675 4288 4824
22 22 557 835 1114 835 1949 1114 2506 3063 3619 4176 4733
24 24 510 766 1147 766 1405 1978 1021 2489 3126 3700 4210 4786
30 30 510 817 1021 613 817
32 32 478 766 957 574 1054
34 34 450 721 901 540 992
36 36 425 681 851 510 1021
42 42 583 729 438 875
  • 1 in (inch) = 25.4 mm
  • 1 psi (lb/in2) = 6,894.8 Pa (N/m2) = 6.895x10-2 bar

Size Chart of ST52 Pipe Suppliers

NB Size OD 40S 5S 10S S10 S20 S40 S60 XS/80S S80 S100 S120 S140 S160 XXS
mm mm mm mm mm mm mm mm mm mm mm mm mm mm mm
1/8”10.29 1.2 1.73 2.41
1/4”13.72 1.7 2.24 3.02
3/8”17.15 1.7 2.31 3.2
151/2”21.342.81.72.1 2.77 3.733.73 4.787.47
203/4”26.672.91.72.1 2.87 3.913.91 5.567.82
251”33.43.41.72.8 3.38 4.554.55 6.359.09
321 1/4”42.163.61.72.8 3.56 4.854.85 6.359.7
401 1/2”48.263.71.72.8 3.68 5.085.08 7.1410.2
502”60.333.91.72.8 3.91 5.545.54 9.7411.1
652 1/2”73.035.22.13.1 5.16 7.017.01 9.5314
803”88.95.52.13.1 5.49 7.627.62 11.115.2
903 1/2”101.65.72.13.1 5.74 8.088.08
1004”114.362.13.1 6.02 8.568.56 11.1 13.517.1
1255”141.36.62.83.4 6.55 9.539.53 12.7 15.919.1
1506”168.37.12.83.4 7.11 10.9711 14.3 18.322
2008”219.18.22.83.8 6.48.1810.312.712.715.119.320.62322.2
25010”273.19.33.44.2 6.49.2712.712.715.119.321.425.428.625.4
30012”323.99.544.6 6.410.314.312.717.521.425.428.633.325.4
35014”355.69.544.86.47.911.115.112.719.123.827.831.835.7
40016”406.49.54.24.86.47.912.716.712.721.426.23136.540.5
45018”457.29.54.24.86.47.914.319.112.723.829.434.939.745.2
50020”5089.54.85.56.49.515.120.612.726.232.538.144.550
55022”558.89.54.85.56.49.5 22.212.728.634.941.347.654
60024”609.69.55.56.46.49.517.524.612.73138.94652.459.5
65026”660.49.5 7.913 12.7
70028”711.29.5 7.913 12.7
75030”7629.56.47.97.913 12.7
80032”812.89.5 7.91317.5 12.7
85034”863.69.5 7.91317.5 12.7
90036”914.49.5 7.91319.1 12.7

DIN 2391 ST52 CS Equivalent

The final delivery condition Cold drawn(Mandatory)
BK1）		 Cold drawn(Soft)
BKW1）		 Cold Drawn and Stress Release
(BKS)		 Anneal
(GBK)1）		 Normalizing
(NBK)1）
Kinds of Steel Tensile Elongation Tensile Elongation Tensile Yield point Elongation Tensile Elongation Tensile Yield point Elongation
Steel grade Material number No less than
Rm A5 Rm A5 Rm ReH A5 Rm A5 Rm ReH2) A5
N/mm2 % N/mm2 % N/mm2 N/mm2 % N/mm2 % N/mm2 N/mm2 %
St35 1.0308 -- -- -- -- -- -- -- -- -- 340~470 235 25
St37.4 1.0255 480 6 420 10 420 315 14 315 25 350~480 235 25
St45 1.0408 580 5 520 8 520 375 12 390 21 440~570 255 21
St52 1.0580 640 4 580 7 580 420 10 490 22 490~630 355 22
St52.4 1.0581 -- -- -- -- -- -- -- -- -- 500~650 355 21

Carbon Steel DIN 2391 ST52 Pipes Chemical Composition

Standard Grade C Si Mn P max S max
DIN2391 St52 ≤0.22 ≤0.55 ≤1.6 0.025 0.025

DIN 2391 ST52 Pipe Dimension Tolerance

OD Tolerance 4-30mm 31-40mm 41-50mm 51-60mm 61-70mm 71-80mm 81-90mm 91-100mm
±0.08mm ±0.15mm ±0.20mm ±0.25mm ±0.30mm ±0.30mm ±0.40mm ±0.45mm
WT Tolerance ±10%

Chemical Analysis of Din 2448 St 52 and DIN 2391 ST 52 Honed Tube cylinder tube

Carbon 0.20%
Silicon 0.50%
Manganese 1.50%
Phosphorus 0.050% Max
Sulphur 0.050% Max

Related Specification

DIN 2391-2 1.0580 St52
Din2393&2394 1.0570 St52-3
EN10025 1.0570 S355

If Under 20 ISO H8
From 20 to under 25 ISO H9
From 25 to 28 ISO H10
Over 28 ISO H11
Roughness: 0.30 micron RA max

St 52 Pipe Suppliers

ST 52 Seamless Pipe
ST 52 Seamless Pipe
ST 52 Welded Pipe
ST 52 Welded Pipe
ST 52 Rectangular Tube
ST 52 Rectangular Tube
ST 52 Exhaust Pipe
ST 52 Exhaust Pipe
ST 52 Square Pipe
ST 52 Square Pipe
ST 52 ERW Pipe
ST 52 ERW Pipe
ST 52 Lined pipe
Din 2448 St 52 Pipe
ST 52 Line pipe
ST 52 Line pipe
ST 52 Schedule 80 Pipe
ST 52 Schedule 80 Pipe
ST 52 Schedule 40 Pipe
ST 52 Schedule 40 Pipe
ST 52 Square hollow section
ST 52 Square hollow section
ST 52 Schedule 60 Pipe
ST 52 Schedule 60 Pipe

Weight Chart for St52 Steel Tube Suppliers In India

Size NPS Pipe O.D. Wall Thickness Pipe I.D. Weight per Foot Standard to XXHY Schedule
Pipe #		 Section Modulus Gallon Capacity Per Linear Foot
1/2 0.84 0.109 0.622 0.85 STD 40 .0407 .0158
0.147 0.546 1.09 XHY 80 .0478 .0122
0.188 0.464 1.31 160 .0528 .0088
0.294 0.252 1.72 XXHY .0577 .0026
3/4 1.05 0.113 0.824 1.13 STD 40 .0705 .0277
0.154 0.742 1.48 XHY 80 .0853 .0225
0.219 0.612 1.95 160 .1006 .0153
0.308 0.434 2.44 XXHY .1103 .0077
1 1.315 0.133 1.049 1.68 STD 40 .1328 .0449
0.179 0.957 2.17 XHY 80 .1606 .0374
0.250 0.815 2.85 160 .1904 .0271
0.358 0.599 3.66 XXHY .2136 .0146
1 1/4 1.66 0.140 1.380 2.27 STD 40 .2346 .0777
0.191 1.278 3.00 XHY 80 .2913 .0666
0.250 1.160 3.77 160 .3421 .0549
0.382 0.896 5.22 .4110 .0328
1 1/2 1.90 0.145 1.610 2.72 STD 40 .3262 .1058
0.200 1.500 3.63 XHY 80 .4118 .0918
0.281 1.338 4.86 160 .5079 .0730
0.400 1.100 6.41 .5977 .0494
2 2.375 0.109 2.157 2.64 10 .4205 .1898
0.154 2.067 3.66 STD 40 .5606 .1743
0.218 1.939 5.03 XHY 80 .7309 .1534
0.250 1.875 5.68 .8045 .1434
0.281 1.813 6.29 .8666 .1344
0.344 1.687 7.47 160 .9806 .1161
0.436 1.503 9.04 XXHY 1.1043 .0922
2 1/2 2.875 0.120 2.635 3.53 10 .6870 .2833
0.203 2.469 5.80 STD. 40 1.0640 .2487
0.216 2.443 6.14 1.1169 .2435
0.250 2.375 7.02 1.2468 .2301
0.276 2.323 7.67 XHY 80 1.3386 .2202
0.375 2.125 10.02 160 1.6371 .1842
0.552 1.771 13.71 XXXHY 1.9971 .1280
3 3.50 0.120 3.260 4.34 1.0411 .4336
0.156 3.188 5.58 1.3122 .4147
0.172 3.156 6.12 1.4265 .4064
0.188 3.124 6.66 1.5342 .3984
0.216 3.068 7.58 STD. 40 1.7241 .3840
0.250 3.000 8.69 1.9372 .3672
0.281 2.938 9.67 2.1207 .3521
0.300 2.900 10.26 XHY 80 2.2253 .3431
0.438 2.624 14.34 160 2.8774 .2811
0.600 2.300 18.6 XXHY 3.4243 .2158
3 1/2 4.0 0.120 3.760 4.98 10 1.3776 .5768
0.226 3.548 9.12 STD. 140 2.3939 .5136
0.250 3.500 10.02 2.6001 .4998
0.281 3.438 11.17 2.8562 .4821
0.318 3.364 12.52 XHY 80 3.1400 .4617
0.636 2..728 22.87 XXHY 4.8795 .3085
4 4.5 0.120 4.260 5.62 10 1.7612 .7404
0.156 4.188 7.24 2.2354 .7156
0.188 4.124 8.67 2.6296 .6942
0.203 4.094 9.32 2.8173 .6838
0.219 4.062 10.02 3.0184 .6725
0.237 4.026 10.80 STD. 40 3.2145 .6613
0.250 4.000 11.36 3.3611 .6528
0.281 3.938 12.67 60 3.7021 .6326
0.312 3.876 13.97 4.0273 .6126
0.337 3.826 15.00 XHY 80 4.2713 .5972
0.438 3.624 19.02 120 5.1790 .5361
0.531 3.438 22.53 160 5.8997 .4822
0.674 3.152 27.57 XXHY 6.7927 .4054
5 5.563 0.188 5.187 10.80 4.1161 1.0979
0.219 5.125 12.51 4.7279 1.0716
0.258 5.047 14.63 STD. 40 5.4500 1.0391
0.281 5.001 15.87 5.8644 1.0204
0.312 4.939 17.51 6.4074 .99647
0.344 4.875 19.19 6.9358 .9696
0.375 4.813 20.80 XHY 80 7.4300 .9449
0.500 4.563 27.06 120 9.2534 .8495
0.625 4.313 32.99 160 10.7976 .7590
0.750 4.063 38.59 XXHY 12.0954 .6734
6 6.625 0.109 6.407 7.59 5 3.5769 1.6748
0.134 6.357 9.30 10 4.3475 1.6488
0.156 6.313 10.79 5.0107 1.6260
0.188 6.249 12.94 5.9351 1.5937
0.203 6.219 13.94 6.3804 1.5780
0.219 6.187 15.00 6.8261 1.5620
0.250 6.125 17.04 7.6905 1.5306
0.280 6.065 18.99 STD. 40 8.4958 1.5008
0.312 6.001 21.06 9.3416 1.4688
0.344 5.937 23.10 10.111 1.4391
0.375 5.875 25.05 10.893 1.4082
0.432 5.761 28.60 XHY 80 12.224 1.3541
0.500 5.625 32.74 13.711 1.2909
0.562 5.501 36.43 120 14.9806 1.2346
0.625 5.375 40.09 16.1821 1.1787
0.719 5.187 45.39 160 17.8243 1.0977
0.864 4.897 53.21 XXHY 20.025 .9784
1.000 4.625 60.13 21.7719 .8727
1.125 4.375 66.14 23.1237 .7809

ST52 DIN 2391 Seamless Pipes Mechanical Properties


Cold drawn(Mandatory)		 Cold drawn(Soft) Cold Drawn and Stress Release Anneal Normalizing
BK1） BKW1） (BKS) (GBK)1） (NBK)1）
Grade Tensile Elongation Tensile Elongation Tensile Yield point Elongation Tensile Elongation Tensile Yield point Elongation
N/mm2 % N/mm2 % N/mm2 N/mm2 % N/mm2 % N/mm2 N/mm2 %
St52 640 4 580 7 580 420 10 490 22 490~630 355 22

Mechanical Requirements: BK+S

Yield Strength 520 Mpa Min.
Tensile Strength 600 Mpa Min.
Elongation 14% Min.

  • Tolerance O/D: Seamless
  • Calculated by dividing I/D by W/T
  • Tolerance I/D: Honed.
  • Straightness: 1 / 1000
  • Under 40mm +/- 0.2mm 40mm to 100mm +/- 0.3mm Over 100mm +/- 0.5mm
  • To Din 2393 and 2394
  • Tolerance O/D: Welded
Tycoon piping provide you with robust quality of Din 2448 St 52 and St52 Steel Tube Suppliers In India in a wide range at reasonable price

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