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IS 1239 Yst 310 Erw Pipe, IS 1239 GI pipe, IS 1239 YST 310 0.5 Inch Steel Pipes, IS 1239 Yst 355 Pipe, IS 1239 YST 355 88 mm black steel pipe tube.

Chemically, the IS 1239 Pipe has 0.20 percent carbon, 1.30 percent manganese, 0.40 percent sulfur, and 0.40 percent phosphorus. They are a popular option for food processing, boilers, etc. They come in fabricated, seamless, and welded versions. The Pipe is made from steel that has undergone complete oxidation. There are no seams or welding on these pipes. The IS 1239 GI material can produce welded and seamless pipes.

Contrary to the seamless pipes of the specified specification, the IS 1239 ERW Pipe has a thicker wall. These pipes are used in harsh and extreme environments. In addition to liquid tube pipes, condensers, etc., the IS 1239 Steel Tubes are frequently used in heat transfer, oil, gasoline, and petroleum pipeline systems. Coils are used to create the pipes, which run across dies. The pipes are utilized for numerous structural and maintenance applications and are internally welded. They may be used with any welding procedure. With pressures reduced by 20%, these welded pipes still function well. These pipelines supply non-hazardous gas, water, and other things. Systems with low pressure use the material. These pipes come in various forms: hollow, square, rectangular, round, and hydraulic. 

Properties of IS 1239 GI Pipe: 

Excellent mechanical qualities are included in the IS 1239 GI Pipe. The Pipe has several diameters, ranging from 12 inches to 36 inches. The material of the IS 1239 can be heated and treated utilizing common techniques like normalizing and quenching. The material's physical characteristics include a minimum tensile strength of 330 Mpa and the capacity to stretch easily by 25.4% while maintaining high workability. They are quite powerful, long-lasting, and simple. The Pipe is likewise thickly constructed. They come in nominal sizes ranging from 3mm to 150mm. This class's thickness ranges from 2.65mm to 5.40mm. A zinc layer serves as a shield over the substance. These pipes are shielded against corrosion by the zinc, which also gives a smooth surface. It prolongs the lifespan of these pipes. It is possible to weld the grade without needing pre-heating or post-weld treatments. Heavy Pipe made of IS 1239 is extremely durable and strong. Single random, double random, and bespoke sizes up to 7 meters or more of these pipes are available upon request. Factories can use cold rolling or hot rolling processes to create these pipes. These pipes come with plain, beveled, and threaded tube ends as options. 


Specification :


Size range 15mm NB to 150mm NB
Dimensions IS: 1239 (Pt I) - 2004
BS - 1387 / 1985
Length upto 7 M
Specifications IS - 1239 (Part -1) 2004
BS - 1387 / 1985
TC MR0103, NACE MR0175, EN 10204 3.2, 10204 3.1

Equivalent Grade of IS 1239 GI Pipe

Equivalent grades
DIN: 2440, 2441, BS: 1387, S: 3589, 1239 IS 1239 yst 355 ISO: 65 IS 1239 yst 355 Tata Structura 355

Chemical Composition of IS 1239 GI Pipe

Chemical Composition (%) Max.
Specification Grade S Mn C P Si C.0E.0
              PCM IIW
IS:1239   0.0040 1.030 0.020 0.0040 -    
  Fe 330 0.0040 1.020 0.016 0.0040 -    
  Fe 410 0.0040 1.030 0.020 0.0040   0.045
  Fe 450 0.0040 1.020 0.025 0.0040   0.045

Mechanical Composition of IS 1239 Section

IS 1239 Pipes Mechanical Properties Impact
Yield Strength Tensile Strength % Elongation
Min Max Min Max
e (min)
        20 ABOVE 25 mm
275   450   15
    320   12 UPTO 25 mm NB
235   410   18
195   330   20
         GL= 5.65 Area


Types of Hollow Section Available


square Hollow Section

Square Hollow Section

rectangular-hollow-section

Rectangular Hollow Section

circular Hollow Section

Circular Hollow Section


Dimensions of IS 1239 GI heavy pipe


Nominal Bore Outside Diameter Light Medium Heavy
Inch mm Inch mm mm kg/mtr mm kg/mtr mm kg/mtr
1/8 3 0.406 10.32 1.80 0.361 2.00   2.65 0.493
1/4 6 0.532 13.49 1.80 0.517 2.35 0.407 2.90 0.769
3/8 10 0.872 17.10 1.80 0.674 2.35 0.852 2.90 1.02
1/2 15 0.844 21.43 2.00 0.952 2.65 1.122 3.25 1.45
3/4 20 1.094 27.20 2.35 1.410 2.65 1.580 3.25 1.90
1 25 1.312 33.80 2.65 2.010 3.25 2.440 4.05 2.97
1.1/4 32 1.656 42.90 2.65 2.580 3.25 3.140 4.05 3.84
1.1/2 40 1.906 48.40 2.90 3.250 3.25 3.610 4.05 4.43
2 50 2.375 60.30 2.90 4.110 3.65 5.100 4.47 6.17
2.1/2 65 3.004 76.20 3.25 5.840 3.65 6.610 4.47 7.90
3 80 3.500 88.90 3.25 6.810 4.05 8.470 4.85 10.1
4 100 4.500 114.30 3.65 9.890 4.50 12.10 5.40 14.4
5 125 5.500 139.70 4.85 16.20 5.40 17.8
6 150 6.500 165.10 4.85 19.20 5.40 21.2

Weight Chart of IS 1239 GI


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

Available IS 1239 Gi pipe


IS 1239

IS 1239 Square pipe

IS 1239 YST 240 38*38*2 Stock Square Seamless Steel Pipe

IS 1239 YST 240 38*38*2 Square Seamless Steel Pipe

IS 1239 YST 240 square pipe

IS 1239 YST 240 square pipe

IS 1239 GI pipe

IS 1239 GI pipe

IS 1239 MS pipe

IS 1239 MS pipe

IS 1239 Yst 310 Erw Pipe

IS 1239 Yst 310 Erw Pipe


Price List of IS 1239 GI Piping


Carbon Steel IS 1239 GI Pipe manufacturer
US / Metric Ton (FOB Price) on request
BS EN 10210 IS 1239 GI Carbon Steel Pipes
US / Metric Ton (FOB Price) on request
EN 10210 IS 1239 GI Carbon Steel Structural Pipe
US / Metric Ton (FOB Price on request
IS 1239 GI Seamless Pipe
US / Metric Ton (FOB Price) on request
IS 1239 GI Cold Drawn Welded Pipes
US / Ton (FOB Price) on request
IS 1239 GI Steel Electric Resistance Welded Pipe
US / Ton (FOB Price) on request
IS 1239 GI Carbon Steel Square Pipe
US / Ton (FOB Price) on request
IS 1239 GI Carbon Steel Rectangular Pipes
US / Ton (FOB Price) on request
IS 1239 GI Carbon Steel Round Pipes
US / Ton (FOB Price) on request
IS 1239 GI Hot Finished ERW Welded Pipes
US / Ton (FOB Price) on request

Pipes & Tubes Applications Industries

IS 1239 GI Steel Welded Pipes are known to deliver exceptional performance and are generally developed for meeting the demands. We offer a broad range of Carbon Steel Pipe through a worldwide network of stock-keeping branches. Carbon Steel Pipe is use in various industries like :

  • Pipes & Tubes uses in Paper & Pulp Companies
  • Pipes & Tubes uses in Oil and Gas Industry
  • Pipe Forged uses in Chemical Refinery
  • Buttweld Pipe Forged uses in High Temperature Application
  • Pipes & Tubes uses in Water Pipe Line
  • Pipe Forged can be used in Nuclear power plants
  • Pipes & Tubes usefule for High Pressure Applications
  • Pipes & Tubes Long Radius Forged uses in Fabrication and welding Job
  • Pipes & Tubes uses in Food Processing and Dairy Industries
  • Pipes & Tubes Short Radius Forged uses in boiler & heatexchangers

Marking & Packing


Our IS 1239 GI Pipes are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All IS 1239 GI Carbon Steel Pipe are marked with Grade, Lot No, Size and our trade mark. We can also make custom marking on our products on Special request from Purchaser.


Quality Assurance


Triton Alloys Inc all IS 1239 GI Steel Pipe, IS 1239 GI Steel Welded Pipes and IS 1239 GI Steel Seamless Pipes are subject to strict inspection at each stage starting from material purchasing to product dispatch. They are visually examined for conformity to ASTM, ASME, DIN, EN, and JIS codes and standards. We can also appoint official certified Inspection Agencies upon request of our clients so that they can witness the material reports, dimensions and quality conformity of products.

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