ASTM A790 UNS S31803 pipe

ASTM A790 UNS S31803 pipe

We are top notch SA 789 S31803 seamless pipe supplier in India


Nitron Alloys Overseas are one of the leading manufacturers, suppliers, and exporters of premium quality ASTM A790 UNS S31803 pipe. The entire range of pipes is rigorously tested to ensure the highest quality and endurance under extreme atmosphere. We are making these Pipes in accordance with national and international standards & specifications.


We, Nitron Alloys Overseas, are offering these Seamless Pipes in different specifications such as surface finish, end finish, length, size, shape, and wall thickness. The same are offered to the customers in cut-made specifications as their expectations. These types of Pipes are widely used by the industries because of the attractive attributes that are inherited in it. These Seamless Pipes are having high tensile strength, good yielding strength, elongation, and much more. A 312 Grade. TP904L Pipes have excellent resistance chloride attack. These Seamless Pipes are austenitic stainless steel intended for use under severe corrosion conditions. Our offered seamless Pipes are also having very good resistance to attacks in acidic environments, as sulphuric, phosphoric, and acetic acid.


We are manufacturing these ASTM A 312 Grade. TP 904L Seamless Pipes with a wide variety and superior quality of alloy that is collected by our experts from reliable market vendors. We are providing smoothness and thickness of our manufactured Pipes that moves through certain stages in the manufacturing process. Our experts are always taking stringent actions to manufacture these seamless Pipes by keeping in mind the quality of the product as per the industrial demand.


We, Nitron Alloys Overseas, are having a team of qualified professionals having huge experience of manufacturing ASTM A790 UNS S31803 pipe. They are using the latest tools and technologies for manufacturing these ASTM Pipes according to the quality as well as quantity standards. Our manufacturing unit is full of the latest machinery and technologies. We are manufacturing these products with the latest tools and techniques in a bulk amount so that we can serve our customers at any emergency. In the end, we are performing various tests on the final product and performing on time and damage-free delivery to our esteemed customers.



ASTM A790 UNS S31803 pipe

ASTM A790 UNS S31803 pipe

SA 789 S31803 seamless pipe

SA 789 S31803 seamless pipe

A790 grade UNS S31803 pipe

A790 grade UNS S31803 pipe

ASTM A790 UNS S31803 pipe specification

Sizes Schedule Standard

Outside Diameter: 0.5" - 24"
Wall Thickness: 6mm-30mm
  • SCH 5 to SCH XXS
 ASTM A790 / ASME SA790
ASTM A790 UNS S31803 pipe Ends Type Surface
  • Beveled
  • Straight cut
  • Plain
  • Seamless
  • ERW
  • Welded
  • Black painting
  • 3PE
  • PP
  • FBE
Payment terms Form Length
  • L/C
  • T/T
  • Round
  • Rectangular
  • Square
  • Single Random
  • Double Random
  • Cut length
Manufacturing technique Packaging Origin
  • Hot rolled
  • Cold rolled
  • Loose
  • Plastic Cloth Wraps
  • Wooden box-a
  • Wooden Pallet
  • Bundle
  • Korean
  • Russian
  • European
  • Indian
  • US
  • Ukraine
  • Japanese
Cutting techniques Testing Provided By Supplier Delivery Conditions
  • Burrless Cuts
  • Tapping
  • Sawing
  • Water-Jet
  • NACE TM0177
  • SSC TEST
  • HIC TEST
  • H2 SERVICE
  • NACE MR0175
  • NACE TM0284
  • IBR
  • Cold Drawn
  • Quenched and Tempered
  • Normalizing Formed
  • Hot Rolled
  • Normalized and Tempered
  • Normalizing Rolled
Marking on SA 789 S31803 seamless pipe International standards Value Added Services
  • Length
  • OD name
  • Grade
  • Thickness
  • Heat No.
  • Standard
  • Manufacturer/Supplier
  • BS - UNI
  • ISO
  • GB 5310
  • ASTM/ASME
  • DIN -NF A
  • JIS
  • GOST
  • EN
  • Draw
  • Sand Blasting
  • Shot Blasting
  • Heat Treatment
  • Machining
  • Expansion
  • Galavanizing

A790 grade UNS S31803 pipe types

Duplex 31803 Seamless Pipes

Duplex 31803 Seamless Pipes

A790 grade UNS S31803 cold drawn pipe

A790 grade UNS S31803 cold drawn pipe

SA 790 UNS S31803 round pipe

SA 790 UNS S31803 round pipe

ASTM A 790 UNS S31803 reactangular pipe

ASTM A 790 UNS S31803 reactangular pipe

SA 789 UNS S31803 high pressure pipe

SA 789 UNS S31803 high pressure pipe

ASTM A790 S31803 cdw pipes

ASTM A790 S31803 cdw pipes

SA 790 S31803 Square pipes

SA 790 S31803 Square pipes

A790 S31803 hot finished pipe

A790 S31803 hot finished pipe

SA790 S31803 thin wall pipes

SA790 S31803 thin wall pipes

A790 grade UNS S31803 pipe has smooth finishing and durability, View dimensions of SA 789 UNS S31803 high pressure pipe

Dimensions of SA 789 UNS S31803 high pressure pipe

NPS ID (IN) WT (IN) OD (IN) Weight (LB/FT)
1/8 0.269" 0.068" 0.405" 0.24
1/4 0.364" 0.088" 0.540" 0.42
3/8 0.493" 0.091" 0.675" 0.57
1/2 0.622" 0.109" 0.840" 0.85
3/4 0.824" 0.113" 1.050" 1.13
1 1.049" 0.133" 1.315" 1.68
1-1/4 1.380" 0.140" 1.660" 2.27
1-1/2 1.610" 0.145" 1.900" 2.72
2 2.067" 0.154" 2.375" 3.65
2-1/2 2.469" 0.203" 2.875" 5.79
3 3.068" 0.216" 3.500" 7.58
3-1/2 3.548" 0.226" 4.000" 9.11
4 4.026" 0.237" 4.500" 10.79
5 5.047" 0.258" 5.563" 14.62
6 6.065" 0.280" 6.625" 18.97
8 7.981" 0.322" 8.625" 28.55
10 10.020" 0.365" 10.750" 40.48
12 11.938" 0.406" 12.75" 53.52
14 13.124" 0.438" 14.000" 63.50
16 15.000" 0.500" 16.000" 82.77
18 16.876" 0.562" 18.000" 104.70
20 18.812" 0.594" 20.000" 123.10
24 22.624" 0.688" 24.000" 171.30

We are stockist of SA 790 UNS S31803 round pipe in Mumbai, check SA 790 S31803 Square pipes price list

A790 grade UNS S31803 pipe price list

Price list of ASTM A790 UNS S31803 pipe A790 grade UNS S31803 pipe Price in USD SA790 S31803 pipe Price in UAE Dirham
SCH40 duplex seamless pipe 4 inch US $104.93.00 per meter 385.37 UAE Dirham per meter
A790 S31803 pipe - 10 X SCH 40 US $2119.61 per piece 7785.03 UAE Dirham per piece
Leading exporter of A790 S31803 hot finished pipe in more than 20 countries, ASTM A790 S31803 cdw pipes are usually used to combat stress corrosion cracking related issues

ASTM A 790 UNS S31803 reactangular pipe chemical composition

Grade C Ni Si Mn P Mo Cr S N
UNS S31803 - 0.030 4.5 - 6.5 - 1.00 - 2.00 - 0.030 2.5 - 3.5 21.0 - 23.0 - 0.020 0.08 - 0.20

SA 789 UNS S31803 high pressure pipe mechanical properties

Grade Tensile Strength
(MPa) min		 Yield Strength
0.2% Proof
(MPa) min		 Elongation
(% in 50mm) min		 Hardness
Rockwell C (HR C) Brinell (HB)
UNS S31803 621 448 25 31 max 293 max

ASTM A790 S31803 cdw pipes equivalent grades

Grade UNS
 Euronorm Swedish SS Old British
No Name BS En
2205 S31803 1.4462 X2CrNiMoN22-5-3 2377 318S13 -

Physical properties of A790 S31803 hot finished pipe

Grade Elastic
Modulus(GPa)		 Electrical
Resistivity
(nΩ.m)		 Mean Co-eff of Thermal
Expansion (μm/m/°C)		 Specific
Heat
0-100°C( J/kg.K)		 Thermal
Conductivity (W/m.K)
0-100°C 0-315°C 0-538°C at 100°C at 500°C
UNS S31803 190 850 13.7 14.2 - 418 19 -
We keep ready stock of ASTM A 790 UNS S31803 reactangular pipe in size range of 1/2 to 36 inch, View online weight chart and sizes of SA790 S31803 thin wall pipes

Size chart of SA790 S31803 pipes

NPS O.D. (in) 10 80 160 40
1/8" .405 .049 .095 .068
1/4" .540 .065 .119 .088
3/8" .675 .065 .126 .091
1/2" .840 .083 .147 .187 .109
3/4" 1.050 .083 .154 .218 .113
1" 1.315 .109 .179 .250 .133
1 1/4" 1.660 .109 .191 .250 .140
1 1/2" 1.900 .109 .200 .281 .145
2" 2.375 .109 .218 .343 .154
2 1/2" 2.875 .120 .276 .375 .203
3" 3.500 .120 .300 .437 .216
3 1/2" 4.000 .120 .318 .226
4" 4.500 .120 .337 .531 .237
4 1/2" 5.000
5" 5.563 .134 .375 .625 .258
6" 6.625 .134 .432 .718 .280
7" 7.625
8" 8.625 .148 .500 .906 .322
9" 9.625
10" 10.750 .165 .593 1.125 .365
11" 11.750
12" 12.750 .180 .687 1.312 .406
14" 14.000 .250 .750 1.406 .437
16" 16.000 .250 .843 1.593 .500
18" 18.000 .250 .937 1.781 .562

A790 UNS S31803 round pipe weight chart

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

Application of Duplex 31803 Seamless Pipes

  • Chemical equipment
  • Off-shore oil drilling
  • Pulp and paper industry
  • Power generation
  • Pharmaceutical equipment
  • Petrochemicals
  • Gas processing
  • Sea water equipment

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