• ISO 9001 Certified

    Seamac Piping Solutions Inc. is a reliable is a Manufacturer, Supplier, & Exporter of Pipe Fittings, Forged Pipe Fittings, Forged Fittings, Flanges, Outlets, Long Radius Bends from India.

    Corporate Address : 87, Durgadevi Street, Kumbharwada, Mumbai, Maharashtra(India) 400004

    Warehouse Address : Jai Matadi Industrial Estate , Gala No.3 , Goddev Fhatak Road Bhayander ( East) , Thane , Maharastra ( India).

    Mobile : +91-98332 92291
    Phone Nos. : +91-22-66159077 / 66159078
    E-mail : [email protected]

St52, St52.3, St52.4 Pipes Manufacturers, DIN 2391 ST 37 Welded Pipe Exporters, DIN 2391 St52 Steel Seamless Precision Pipe, ST37 Hydraulic Seamless Pipe, ST37.2 Pipe Suppliers in India.

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CS ST 37 / ST 52 Seamless Pipes

Carbon Steel ST 37/ ST 52 Pipes having excellent features and advantages like high strength, reliability, durability, and superior finish. These Pipes have low maintenance and are efficient in performance. Carbon Steel pipes are available in different dimensions, sizes, and specifications to meet exact application requirements. Carbon Steel ST 37/ ST 52 Pipes can be customized in thicknesses and sizes as per the specific demands of our esteemed clients.

Carbon Steel ST 52 Seamless Pipes can withstand high temperatures and pressure load applications. They are corrosion resistant having rust proof finish. These pipes have advantages like robust construction, reliable performance, and longer service life.

Seamac Piping Solutions Inc. carries a wide range of carbon steel st 37 / st 52 pipes and tubes in a variety of lengths, ODs, IDs, size and wall thicknesses to meet your project’s needs—including pipe in dimension as per ASTM and weight-kg. per mtr. (ASME/ANSI B36.10/19) / weight & thickness of st 37 / st 52 carbon steel seamless pipes gauge .

Seamac Piping Solutions Inc. is a highly acclaimed manufacturer of an extensive range of Carbon Steel ST 37/ ST 52 Pipes. We fabricate Carbon Steel Pipes at our well-equipped fabrication unit under the supervision of our qualified professionals. We design superior quality Carbon Steel ST 37/ ST 52 Pipes, which serve the demands and requirements of various industrial applications. We offer high-grade Carbon Steel ST 37/ ST 52 Pipes at reasonable and standard industry prices.

ST37 | ST52 Carbon Steel Pipe Specifications

Pipe Standard : DIN2391

Grade : ST 35 , ST 37.4 , ST 45 & ST 52

Outside Diameter Ranges : 1/8’’~48’’ Or DN6~DN1200 Or 10.3mm~1219mm

I.D Roughness : 0.4-0.8

Inside Diameter Tolerance : H7-H10

Form : Round, Square, Rectangular, Hydraulic Etc

Size : 1/2” NB to 36” NB

Outside Diameter : 13.72mm-914.4mm

Wall Thickness : 1.25mm-50mm

Length : 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
common Length | 6m, 12m
Min 3 Meters, Max18 Meters, or according to customer’s requirement

Schedules : SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules

End : Plain End, Beveled End, Treaded

End Protection : Plastic Caps

Type : Seamless / Welded / American Welded / Fabricated / ERW

Specialized in : Large Diameter ST 52 ST37 Pipe, din st 52, st 37 welded steel pipe, DIN 2391 St 37 St 52 Honed Tube for Hydraulic Cylinder and Pneumatic Cylinder

ST37 | ST52 Carbon Steel Pipe Equivalent Grades

Grade EN BS NFA 49.210/49.112 ASTM
St 37 EN 10216.1Grade P235 T1 Grade TU 37 B TU E 220 A ASTM A53 Gr B
St 52 EN 10216-3Grade P355N NFA Grade P355N ASME SA 381 Grade Y 52

ST37 | ST52 Steel Seamless Pipe Types

ST 37 / ST 52 Seamless Pipes

Cold Drawn St37 St52 Steel Seamless Pipes

St37 St52 CS Cold Drawn Seamless Pipe

ST 37 Seamless Carbon Steel Pipe

ST 52 Seamless Steel Pipe

ST 37 / ST 52 CS Welded Pipes

DIN 2391 ST 37 Carbon Steel Welded Pipe

DIN 2391 ST 52 Welded Pipe

Carbon Steel ST37 Welded Pipe

ST 52 Carbon Steel Welded Pipe

ST 37 / ST 52 Seamless Precision Pipe

DIN2391 EN10305 carbon steel St37 precision pipe

ST 52 High Precision Seamless Pipe

DIN 2391 ST37 Carbon Steel Precision Pipe

DIN 2391 ST52 Precision Pipe

ST 37 / ST 52 Hydraulic Line Pipes

ST 37 Honed Hydraulic Steel Pipes

Carbon Steel ST 52 Hydraulic Pipes

DIN 2391 ST37 CS Seamless Hydraulic Pipes

ST52 Hydraulic Cylinder Pipes

Carbon Steel ST 37 | ST 52 Seamless Pipes & Tubes Dimensions:

All Pipes is manufactured and tested / inspected to the relevant standards including ASTM, ASME and API etc.

Pipe/Tube NB Sizes Sch 5 Sch 10 Sch 40 Sch 80 Sch 160
ST 37 Seamless Pipes 1/8″
ST 52 Seamless Pipes 1/4″
ST 37 | ST 52 Pipes 3/8″
ST 37 | ST 52 Steel Pipes 1/2″
ST 37 | ST 52 Seamless Pipes 3/4″
Carbon Steel ST 37 | ST 52 Pipes 1″
ST 37 | ST 52 Pipes 1 1/4″
ST 37 | ST 52 Pipes 1 1/2″
ST 37 | ST 52 Seamless Pipes 2″
ST 37 | ST 52 Pipes 2 1/2″
ST 37 | ST 52 Pipes 3″
ST 37 | ST 52 Pipes 4″
ST 37 | ST 52 Pipes 5″
Carbon Steel ST 37 | ST 52 Pipes 6″

Carbon Steel ST 37 | ST 52 Pipe Chemical Composition

Steel Grade C Si Mn P S
St37 ≤0.17 - - ≤0.035 ≤0.035
St52.0 ≤0.22 ≤0.55 ≤1.60 ≤0.035 ≤0.035

ST 37 | ST 52 Seamless Carbon Steel Pipe 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

Carbon Steel ST 37 / ST 52 Pipes Mechanical Properties

Steel Grade Tensile strengtd(Mpa) Yield point(Mpa) Elongation(%)L Elongation(%)T
St37 350-480 ≥235 ≥25 ≥23
St52.0 500-650 ≥355 ≥21 ≥19
Application Industries

DIN 2391 ST37, ST52 Seamless Pipe Application Industries

  • Textile machinery
  • Oil and gas industry
  • Pulp and paper industry
  • Power plants
  • Energy industries
  • Furniture
  • Pharmaceutical processing industry
  • Modern architecture
  • Home appliances
  • Water waste projects
  • Synthetic fiber
  • Heat exchanger
  • Fluid piping
  • Dairy and food processing

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