Stainless Steel Welded Tubes, Pipes and U – tubes


(A) ASTM/ASME - Standards
A 213 / SA 213 Seamless ferritic and austenitic alloy steel boiler, super heater and heat Exchanger Tubes
A 249 / SA 249 Welded austenitic steel boiler, Super Heater, Heat Exchanger and Condenser Tubes
A 268 / SA 268 Seamless and Welded ferritic and martensitic stainless steel tubing for general service
A 269 / SA 269 Austenitic Seamless and Welded stainless steel tubes for general service
A 312 / SA 312  Seamless and Welded austenitic stainless steel pipes
A 358 / SA 358  Welded pipe for high temperature service
A 688 / SA 688  Welded feed water heater ‘U’ Tubes
(C) German - Standards
DIN  17455 Stainless Steel Welded Pipes for general purpose
DIN  17456 Seamless circular austenitic stainless steel for general service
DIN  17457 Circular austenitic stainless steel welded tubes subject to special requirement
DIN  17458 Seamless circular austenitic stainless steel tubes subject to special requirement
DIN  28180 Seamless steel tubes for heat exchanger
(D) NF - Standards (AFNOR Standard)
NF  A 49-117 Seamless ferritic and austenitic S.S. tubes for general services
NF  A 49-217 Seamless ferritic, austenitic and ferritc-austenitic stainless steel tubes for heat exchanger
(F) JIS - Standards
JIS G 3459 Seamless S.S. Pipes.
JIS G 3463 Stainless steel boiler and heat exchanger tubes
Material ASTM Equivalent Standard
UNS Grads (TP) Din (EN) Afnor (NF) JIS
Austenitic S30400 304 1.4301 Z 6 CN 18.09 SUS 304
  S30403 304L 1.4306 Z 2 CN 18.10 SUS 304L
  S31600 316 1.4401 Z 6 CND 17.11 SUS 316
  S31603 316L 1.4404 Z 2 CND 17.12 SUS 316L
  S31635 316Ti 1.4571 Z 2 CND 17.12 -
  S32100 321 1.4541 Z 6 CNT 18.10 SUS 321
  S34700 347 1.455 Z 6 CNNb 18.10 SUS 347
  S30409 304H 1.4948 Z 6 CN 19.10 SUS 304H
  S31609 316H 1.4919 Z 10 CND 18.10 SUS 316H
  S32109 321H 1.4941 Z 10 CND 18.10 SUS 321H
Ferritic S40500 405 1.4002 Z 6 CAL 13 SUS 405
  S41000 410 1.4002 Z 12 C 13 SUS 410
  S43000 430 1.4016 Z 10 C 17 SUS 430
Duplex S31803 - 1.4462 Z 2 CND 22.06 -
  S32750 2507 1.4410 Z 5 CND 20.12 -
  S32760 - 1.4501 - -
Stainless Steel Welded Pipes Dimension - (S.S. Welded Pipe)
Nominal Pipe Size Nominal Outside Diameter Wall Thickness & Weight
Sch. 5S Sch. 10S Sch. 20S Sch. 40S Sch. 80S Sch. 160S
mm Inch mm Inch Wall Thick Weight Kg/Mtr. Wall Thick Weight Kg/Mtr. Wall Thick Weight Kg/Mtr. Wall Thick Weight Kg/Mtr. Wall Thick Weight Kg/Mtr. Wall Thick Weight Kg/Mtr.
6 1/8 10.3 0.405 1 0.23 1.24 0.28 1.5 0.33 1.73 0.37 2.41 0.47 - -
8 1/4 13.7 0.54 1.2 0.37 1.65 0.49 2 0.58 2.24 0.64 3.02 0.82 - -
10 3/8 17.2 0.675 1.2 0.47 1.65 0.63 2 0.74 2.31 0.87 3.2 1.12 - -
15 1/2 21.3 0.84 1.65 0.81 2.11 1.02 2.3 1.07 2.77 1.29 3.73 1.62 4.75 1.97
20 3/4 26.7 1.05 1.65 1.05 2.11 1.3 2.5 1.52 2.87 1.71 3.91 2.93 5.56 2.93
25 1 33.4 1.315 1.65 1.03 2.77 2.13 2.5 2 3.38 2.54 4.55 3.29 6.35 4.3
32 42.2 1.66 1.65 1.65 2.77 2.73 3 2.9 3.56 3.44 4.85 4.56 6.35 5.69
40 48.3 1.9 1.65 1.93 2.77 3.11 3 3.35 3.68 4.11 5.08 5.49 7.14 7.35
50 2 60.3 2.375 1.65 2.4 2.77 3.99 3.5 4.25 3.91 5.52 5.54 7.6 8.74 11.26
65 73.03 2.875 2.11 3.7 3.05 5.26 4 6.81 5.16 8.77 7.01 11.59 9.53 14.91
80 3 88.9 3.5 3.5 4.51 3.05 6.45 4 8.37 5.49 11.47 7.62 15.51 11.13 21.3
100 4 114.3 4.5 2.11 5.85 3.05 8.36 4.5 12.18 6.02 16.07 8.56 22.66 13.49 33.54
125 5 141.3 5.563 2.77 9.5 3.4 11.6 5 16.8 6.55 21.08 9.53 31 15.88 49.11
150 6 168.3 6.625 2.77 11.35 3.4 13.82 6.35 25.36 7.11 28.68 10.97 42.56 8.24 67.53
200 8 219.08 8.625 2.77 14.8 3.76 20 6.35 33.31 8.18 43.18 12.7 64.64 23.01 111.27
250 10 273.05 10.75 3.4 22.61 4.19 27.8 6.35 41.77 9.27 60.31 12.7 81.55 28.58 172.33
300 12 323.85 12.75 3.96 31.25 4.57 36 6.35 49.7 9.53 73.85 12.7 97.43 33.32 238.68
350 14 355.6 14 3.96 34.35 4.78 41.3 7.92 67.9 11.13 98.54 - - - -
400 16 406.4 16 4.19 41.6 4.78 47.34 7.92 77.82 12.07 123.3 - - - -
450 18 457.2 18 4.19 46.85 4.78 53.32 7.92 87.74 14.27 155.86 - - - -
500 20 508 20 4.78 59.31 5.54 68.64 9.53 117.14 15.09 183.42 - - - -
600 24 609.6 24 5.54 82.57 6.35 94.52 9.53 141.11 17.48 255.41 - - - -
Stainless Steel Welded Tubes Dimension - (S.S. Welded Tube)
Wall thickness in mm. 0.5 0.6 0.7 0.8 1 1.2 1.6 2 2.6 3 3.2 3.6
O.D. in mm. Weight in kg/meter
6 0.069 0.081 0.093 0.104 0.125 0.144 0.176 - - - - -
9.52 0.112 0.134 0.154 0.174 0.213 0.249 0.317 - - - - -
10 0.119 0.141 0.163 0.184 0.225 0.264 0.336 - - - - -
12.7 0.153 0.182 0.21 0.238 0.293 0.345 0.444 - - - - -
14 0.169 0.201 0.233 0.264 0.325 0.384 0.496 - - - - -
15.87 0.192 0.229 0.266 0.301 0.372 0.44 0.571 0.694 - - - -
19 0.231 0.276 0.32 0.364 0.45 0.534 0.696 0.85 1.066 1.2 1.264 -
25 0.306 0.366 0.425 0.484 0.6 0.714 0.936 1.15 1.456 1.65 1.744 1.926
25.4 0.311 0.372 0.432 0.492 0.61 0.726 0.952 1.17 1.482 1.68 1.776 1.962
31.8 - - - - - 0.918 1.208 1.49 1.898 2.16 2.288 2.538
38 - - - - - 1.104 1.456 1.8 2.301 2.625 2.784 3.096
44.5 - - - - - 1.299 1.716 2.125 2.724 3.113 3.304 3.681
50.8 - - - - - 1.488 1.968 2.44 3.133 3.585 3.808 4.248
63.5 - - - - - - 2.476 3.075 3.959 4.538 4.824 5.391
76.1 - - - - - - 2.98 3.705 4.778 5.483 5.832 6.525
101.6 - - - - - - 4 4.98 6 7 7,872 8.82
Sr. No. Name Of Machine Capacity Make No. of Machines Work Description
1 Universal Tensile Testing Machine 40 Tons F.I.E. 1 To obtain the mechanical properties of finished tubes & pipes and testing for flaring, flange test, flattening, R.flatting, reverse bending
2 Universal Tensile Testing Machine 60 KN Innotech Engineer 1 To obtain the mechanical properties of finished tubes & pipes and testing for flaring, flange test, flattening, R.flatting, reverse bending
3 Hardness Testing Machine HRB,HRC and BOT 45TSCALE Saroj Engineering Pvt. Ltd. 1 Hardness tester is used for measuring hardness values of tubes & pipes.
4 Hydrostatic Test Machine 6 mm OD to 273 mm OD 6 inch to 10 inch Indiginus 3+1 All hydrostatic test machine is used for carried out on finished tubes / pipes to check the tube for any leakage under elevated hydraulic water pressure as per specification or customer requirement.
5 U' Bend Hydrostatic Test Machine 12.7 mm OD to 50.8 mm OD Indiginus 2 U' Tubes hydrostatic test machine used to carried out on tubes / to check the leakage under elevated hydraulic water pressure as per specification or customer requirement.
6 Air Under Water Test (Pneumatic Test) 6 mm OD tO 30 mm OD Indiginus 1 Pneumatic Test is carried out to check any leakage in the tube by air pressure under water.
7 Eddy Current Testing Machine 8 mm OD to 114.3 mm OD Technofore Pune 1 This is the non destructive test carried out to detect the surface defect/pin holes on the outside diameter or inside diameter of the tube
8 Polishing Machine DISC DIAMETS 200mm Indiginus 1 Single 200 mm diameter disc polisher with variable speed facility for polishing of test pcs.
9 Spectrometer 26 Elements Percentge Analysis Bruker Elemental GMBH Germany 1 Spectrometer which is used for in house product analysis. It can measure upto 26 elements and gives the result of any sample within 60 seconds. It gives us very fast & highly accurate results.
10 Spectro Mobile For PMI Testing 7 Elements Percentge Analysis Bruker S1 SORTER Germeny 1 This instruments make analyser for pmi and quality control/ assurance.
11 Dye Penetrant Test Detect Micro Crack P-MET Baroda 10 Kits Dye Penetrant Test is carried out on tube & pipe surface to detect cracks, flaws or any type of defects.
12 Surface Roughness Tester Upto 350 Microns Japan Mitutoyo 1 Test is carried out for measuring roughness of the tube & pipe for outer surface
13 Chemical Testing Laboratory Practice 'A' & 'E' In House 1 Established in UNIT - II, facility to carry out day to day testing of different solution used in pickling department & IGC testing practice 'E' as per ASTM A-262
14 Visual & Dimension Inspection Skids Visual Inspection Indiginus 20 PAIR Inspection is carried out for any type of surface defect, or scratch on the surface of tube/pipe,dentes and the dimensional inspection is carried out with calibrated measuring instruments for product dimensions are within tolerance requirements.
15 Microscope Magnification 100 X to 400 X QUASMO Model SP-16 LCD 1 Involves grain structure examination as per specification.(Microstructur as per E-112)
16 Dial Verniyer Caliper 8 inch. Mitutoyo Japan 1 Measure diameter & thickness of the tubes & pipe
17 Ultrasonoc Thicknees Gauge 0.75 mm to 300 mm Samsonic Model UTG - 111 1 This instrument measure the thickness at any point of the tube & pipe with accuracy of 0.1 mm