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What is Super Duplex Tube?
The Super Duplex Tube material has a combination of different features that are present in ferritic and austenitic grade stainless steel. It means that the tube possesses its high strength from the ferritic structure, whereas its corrosion resistance properties are from austenitic structure.
The Super Duplex Tubing solutions also show good resistance to stress corrosion cracking. The tubes possess good toughness and are readily available at a competitive price. The chemical composition of 2507 Tubing has added levels of chromium- it increases its ability to resist pitting corrosion. They are available in a wide range of sizes- they can be customized according to the client requirements.
Buy direcly from super duplex tube manufacturer in India to get factory price
Advantages of Super Duplex Seamless Tube and Welded Tube
Super Duplex Seamless Tube
Super Duplex Welded Tube
Which is Stronger Super Duplex Round Tubing or Square Tubing?
Super Duplex Round Tubing is commonly used more than Square Tubing as far as strength and pressure is concerned. It does not assume much stresses and this is because the cross sectional/planar form of this round shape reduces concentration of forces. This means that round tubing provides better results than square tubing under high pressure conditions including the offshore oil and gas business. With regard to square tubing, the same argument applies but additionally, they can caused stress concentration because of corners when compared to the round tubing which has better mechanical stress endurance.
Nonetheless, both types exhibit highly desirable corrosion and mechanical characteristics in harsh environments.
Table of Contents
Specifications of Super Duplex Tube
Alloy 2507 Seamless Tube Sizes
SAF 2507 Welded Tube Sizes
WNR 1.4410 Coil Tube Sizes
SAF 2507 Capillary Tube Sizes
Super Duplex Tubing Properties
SDSS Square Tubing Testing
Tuberia Super Duplex Standards
WNR 1.4410 Tube Manufacturing Process
Super Duplex Boiler Tube European Standard
2507 Super Duplex Tubing Meet Standards
Manufacturing Type of Super Duplex Tubing
Super Duplex Heat Exchanger Tubes Surface Finish
Applications of 2507 Tubing
Super Duplex Square Tubing Value Added Services
Super Duplex Tubing Price
| Material | Price In USD | Price In INR |
|---|---|---|
| Super Duplex 2507 | $ 8.75 - Per kg | ₹ 700 - Per kg |
International Standards Of Super Duplex 2507 Tube
Super Duplex Stainless Steel Tube Pressure Rating
| Tube Schedule | Tube Size | 200° | 100°F | 300° | 500° | 400° | 650° | 750° | 600° | 700° |
|---|---|---|---|---|---|---|---|---|---|---|
| 80 | 1″ | 3634 | 4213 | 3265 | 2791 | 3002 | 2580 | 2501 | 2659 | 2528 |
| 40 | 1″ | 2629 | 3048 | 2362 | 2019 | 2171 | 1867 | 1810 | 1924 | 1824 |
| 160 | 1″ | 5296 | 6140 | 4759 | 4068 | 4375 | 3761 | 3646 | 3876 | 3684 |
| 80 | 1.5″ | 2744 | 3182 | 2466 | 2108 | 2267 | 1949 | 1889 | 2009 | 1909 |
| 40 | 1.5″ | 1947 | 2257 | 1750 | 1496 | 1608 | 1383 | 1340 | 1425 | 1354 |
| 160 | 1.5″ | 3984 | 4619 | 3580 | 3060 | 3291 | 2829 | 2743 | 2916 | 2772 |
| 80 | 2″ | 2369 | 2747 | 2129 | 1820 | 1957 | 1682 | 1631 | 1734 | 1648 |
| 40 | 2″ | 1640 | 1902 | 1474 | 1260 | 1355 | 1165 | 1129 | 1201 | 1141 |
| 160 | 2″ | 3880 | 4499 | 3486 | 2980 | 3205 | 2755 | 2671 | 2840 | 2699 |
| 80 | 3″ | 2202 | 2553 | 1979 | 1691 | 1819 | 1564 | 1516 | 1612 | 1532 |
| 40 | 3″ | 1558 | 1806 | 1400 | 1196 | 1287 | 1106 | 1072 | 1140 | 1084 |
| 160 | 3″ | 3312 | 3840 | 2976 | 2544 | 2736 | 2352 | 2280 | 2424 | 2304 |
| 80 | 4″ | 1909 | 2213 | 1715 | 1466 | 1577 | 1355 | 1314 | 1397 | 1328 |
| 40 | 4″ | 1321 | 1531 | 1187 | 1014 | 1091 | 938 | 909 | 967 | 919 |
| 160 | 4″ | 3106 | 3601 | 2791 | 2386 | 2566 | 2206 | 2138 | 2273 | 2161 |
| 80 | 5″ | 1709 | 1981 | 1535 | 1312 | 1411 | 1213 | 1176 | 1250 | 1189 |
| 40 | 5″ | 1158 | 1342 | 1040 | 889 | 956 | 822 | 797 | 847 | 805 |
| 160 | 5″ | 2945 | 3414 | 2646 | 2262 | 2433 | 2091 | 2027 | 2155 | 2049 |
| 80 | 6″ | 1650 | 1913 | 1483 | 1267 | 1363 | 1172 | 1136 | 1208 | 1148 |
| 40 | 6″ | 1052 | 1219 | 945 | 808 | 869 | 747 | 724 | 770 | 732 |
| 160 | 6″ | 2836 | 3289 | 2549 | 2179 | 2343 | 2014 | 1953 | 2076 | 1973 |
| 80 | 8″ | 1459 | 1692 | 1311 | 1121 | 1205 | 1036 | 1005 | 1068 | 1015 |
| 40 | 8″ | 926 | 1073 | 832 | 711 | 765 | 657 | 637 | 678 | 644 |
| 160 | 8″ | 2738 | 3175 | 2460 | 2103 | 2262 | 1944 | 1885 | 2004 | 1905 |
| 80 | 10″ | 1388 | 1609 | 1247 | 1066 | 1147 | 986 | 956 | 1016 | 966 |
| 40 | 10″ | 840 | 974 | 755 | 945 | 694 | 596 | 578 | 615 | 584 |
| 160 | 10″ | 2714 | 3147 | 2439 | 2085 | 2242 | 1927 | 1868 | 1986 | 1880 |
Tuberia Super Duplex Application
Super Duplex Pipe vs. Super Duplex Tube
| Feature | Super Duplex Pipe | Super Duplex Tube |
|---|---|---|
| Shape | Larger diameter | Smaller diameter |
| Applications | Fluid Transportation and Structural Applications | Hydraulic Systems, Heat Exchangers |
| Wall Thickness | Thicker walls | Thinner walls |
| Standards | Adheres to Certain Piping Standards | Complies With Tubing Standards |
| Cost | Higher | Lower |
| Mechanical Properties | Enhanced Yield Strength | Good Strength, Customised for Various Applications |
Grades Of SDSS Tube
| Grade | Composition (Approx.) |
|---|---|
| S32750 (F53) | 7% Ni, 25% Cr,4% Mo |
| S32760 (F55) | 9% Ni, 25% Cr, 4.5% Mo |
| S32550 (F44) | 5% Ni, 23% Cr, 3% Mo |
| S31803 (F51) | 5.5% Ni, 22% Cr, 3% Mo |
| S32050 (F53) | 6% Ni, 25% Cr, 3.5% Mo |
Alloy 2507 Seamless Tube Physical Properties
| Annealed | Temper | |
|---|---|---|
| 7.8 | g/cm3 | Density |
| 15 | W.m -1.°K-1 | Thermal Conductivity |
| 500 | J.kg-1.°K-1 | Specific Heat (0-100°C) |
| 200 | GPa | Modulus Elasticity |
| 11 | μm/μm/°C | Thermal Expansion |
| 8.12 | Ohm-cm | Electrical Resistivity |
Super Duplex Tubing Types
Super duplex 2507 Welded Tube
Super duplex seamless tube
Super duplex boiler tube
Super duplex heat exchanger tube
Super duplex 2507 annealed tubes
1.4410 mechanical tubing
Alloy 2507 Square Tube
WNR 1.4410 Coil Tube
SAF 2507 Capillary Tube
UNS S32750 Rectangular Tube
UNS S32760 Gas Tube
Duplex 2507 U Shaped tubing
2507 Tubing Temperature Range
| Temperature | Elevated Temperature Factors | ||
|---|---|---|---|
| °C | °F | 2507 Super Duplex Tubing | |
| B31.3 Chapter IX |
B31.3 Base Code |
||
| 93 | 200 | 0.88 | 0.99 |
| 260 | 500 | 0.73 | 0.89 |
| 66 | 150 | 0.92 | 1.00 |
| 149 | 300 | 0.81 | 0.94 |
| 121 | 250 | 0.84 | 0.96 |
| 204 | 400 | 0.76 | 0.91 |
Super Duplex Boiler Tubes Testing
WNR 1.4410 Heat Exchanger Tube Coating Standards
2507 Super Duplex Tubing Welding Material
Super Duplex Seamless Tube Wall Thickness
| NOMINAL | O.D. INCHES | 40 | 80 | 80S & E.H. | 10S | 10 | 40S & STD | 160 |
|---|---|---|---|---|---|---|---|---|
| 2 | 2.375 | .154 | .218 | .218 | .109 | .109 | .154 | .343 |
| 2 1/2 | 2.875 | .203 | .276 | .276 | .120 | .120 | .203 | .375 |
| 3 | 3.500 | .216 | .300 | .300 | .120 | .120 | .216 | .437 |
| 3 1/2 | 4.000 | .226 | .318 | .318 | .120 | .120 | .226 | |
| 4 | 4.500 | .237 | .337 | .337 | .120 | .120 | .237 | .531 |
| 4 1/2 | 5.000 | .355 | .247 | |||||
| 5 | 5.563 | .258 | .375 | .375 | .134 | .134 | .258 | .625 |
| 6 | 6.625 | .280 | .432 | .432 | .134 | .134 | .280 | .718 |
| 7 | 7.625 | .500 | .301 | |||||
| 1/8 | .405 | .068 | .095 | .095 | .049 | .049 | .068 | |
| 1/4 | .540 | .088 | .119 | .119 | .065 | .065 | .088 | |
| 3/8 | .675 | .091 | .126 | .126 | .065 | .065 | .091 | |
| 1/2 | .840 | .109 | .147 | .147 | .083 | .083 | .109 | .187 |
| 3/4 | 1.050 | .113 | .154 | .154 | .083 | .083 | .113 | .218 |
| 1 | 1.315 | .133 | .179 | .179 | .109 | .109 | .133 | .250 |
| 1 1/4 | 1.660 | .140 | .191 | .191 | .109 | .109 | .140 | .250 |
| 1 1/2 | 1.900 | .145 | .200 | .200 | .109 | .109 | .145 | .281 |
| 8 | 8.625 | .322 | .500 | .500 | .148 | .148 | .322 | .906 |
| 9 | 9.625 | .500 | .342 | |||||
| 10 | 10.750 | .365 | .593 | .500 | .165 | .165 | .365 | 1.125 |
| 11 | 11.750 | .500 | .375 | |||||
| 12 | 12.750 | .406 | .687 | .500 | .180 | .180 | .375 | 1.312 |
| 14 | 14.000 | .437 | .750 | .500 | .188 | .250 | .375 | 1.406 |
| 16 | 16.000 | .500 | .843 | .500 | .188 | .250 | .375 | 1.593 |
| 18 | 18.000 | .562 | .937 | .500 | .188 | .250 | .375 | 1.781 |
SAF 2507 Coil Tube Gauge Thickness
| GAUGE | TYPICAL VALUE (INCH) | THICKNESS RANGE (INCH) |
|---|---|---|
| 20 | 0.035 | 0.031 - 0.035 |
| 22 | 0.028 | 0.025 - 0.029 |
| 18 | 0.049 | 0.044 - 0.049 |
| 19 | 0.042 | 0.038 - 0.042 |
| 17 | 0.058 | 0.053 - 0.058 |
| 15 | 0.072 | 0.066 - 0.074 |
| 16 | 0.065 | 0.060 - 0.065 |
| 14 | 0.083 | 0.075 - 0.085 |
| 12 | 0.109 | 0.101 - 0.111 |
| 11 | 0.12 | 0.112 - 0.122 |
| 13 | 0.095 | 0.087 - 0.097 |
| 10 | 0.134 | 0.126 - 0.136 |
| 8 | 0.165 | 0.157 - 0.167 |
| 9 | 0.148 | 0.140 - 0.150 |
| 7 | 0.18 | 0.175 - 0.185 |
Weight Chart of Super Duplex Boiler Tubes
| OUTER DIA MM | NOMINAL SIZES | WALL THK MM | WEIGHT, KILOGRAM/M |
|---|---|---|---|
| 48.26 | 1 1/2" 40S | 3.68 | 5.49 |
| 60.33 | 2" 5S | 1.65 | 2.42 |
| 60.33 | 2" 10S | 2.77 | 3.99 |
| 60.33 | 2" 40S | 3.91 | 5.52 |
| 73 | 2 1/2" 10s | 3.05 | 5.35 |
| 73 | 2 1/2" 40S | 5.16 | 8.77 |
| 88.90 | 3" 5S | 2.11 | 4.58 |
| 88.90 | 3" 10S | 3.05 | 6.56 |
| 88.90 | 3" 40S | 5.49 | 11.47 |
| 101.60 | 3 1/2" 10s | 3.05 | 7.53 |
| 114.30 | 4" 5S | 2.11 | 5.93 |
| 114.30 | 4" 10S | 3.05 | 8.50 |
| 114.30 | 4" 40S | 6.02 | 16.32 |
| 141.3 | 5" 10S | 3.4 | 11.74 |
| 141.3 | 5" 40S | 6.55 | 22.1 |
| 168.3 | 6" 5S | 2.77 | 11.48 |
| 168.3 | 6" 10S | 3.4 | 14.04 |
| 168.3 | 6" 40S | 7.11 | 28.69 |
| 219.1 | 8" 5S | 2.77 | 15.0 |
| 219.1 | 8" 10S | 3.76 | 20.27 |
| 219.1 | 8" 40S | 8.18 | 43.2 |
| 273 | 10" 5S | 3.40 | 22.95 |
| 273 | 10" 10S | 4.19 | 28.2 |
| 21.34 | 1/2" 10S | 2.11 | 1.02 |
| 21.34 | 1/2" 40S | 2.77 | 1.29 |
| 26.67 | 3/4" 10S | 2.11 | 1.30 |
| 26.67 | 3/4" 40S | 2.87 | 1.71 |
| 33.40 | 1" 5S | 1.65 | 1.31 |
| 33.40 | 1" 10S | 2.77 | 2.13 |
| 33.40 | 1" 40S | 3.38 | 2.54 |
| 42.16 | 1 1/4" 5S | 1.65 | 1.67 |
| 42.16 | 1 1/4" 10S | 2.77 | 2.73 |
| 42.16 | 1 1/4" 40s | 3.56 | 3.44 |
| 48.26 | 1 1/2" 5S | 1.65 | 1.92 |
| 48.26 | 1 1/2" 10S | 2.77 | 3.16 |
| 273 | 10" 40S | 9.27 | 61.22 |
| 323.9 | 12" 5S | 3.96 | 31.72 |
| 323.9 | 12" 10S | 4.57 | 36.54 |
| 323.9 | 12" 40S | 9.53 | 75.02 |
| 355.6 | 14" 10S | 4.78 | 41.99 |
| 355.6 | 14" STD | 9.53 | 82.583 |
| 406.4 | 16" STD | 9.53 | 94.706 |
| 406.4 | 16" 10S | 4.78 | 48.07 |
| 457.2 | 18" 10S | 4.78 | 54.151 |
| 508.0 | 20" 10S | 5.54 | 69.702 |
| 610.0 | *24" 10S | 6.35 | 95.919 |
2507 Capillary Tube Ordering Information
|
Tube OD in. |
Nominal Length ft (m) | Nominal Wall Thickness in. |
Weight lb/ft (kg/m) |
ASME B31.3 | ASME B31.3 Chapter IX |
|---|---|---|---|---|---|
| Pressure Rating psig (bar) |
|||||
| 1/4 | 20 (6.1) | 0.049 | 0.10 (0.15) | 15 000 (1040) | 22 600 (1557) |
| 0.035 | 0.08 (0.12) | 10 000 (690) | 14 100 (971) | ||
| 0.065 | 0.13 (0.19) | 19 800 (1370) | 30 200 (2080) | ||
| 3/8 | 0.065 | 0.21 (0.31) | 12 700 (880) | 18 300 (1260) | |
| 0.049 | 0.17 (0.25) | 10 100 (700) | 14 400 (992) | ||
| 0.083 | 0.26 (0.39) | 16 800 (1160) | 24 700 (1701) | ||
| 1/2 | 0.083 | 0.36 (0.54) | 12 900 (890) | 18 600 (1281) | |
| 0.065 | 0.30 (0.45) | 10 100 (700) | 14 400 (992) | ||
| 0.095 | 0.41 (0.61) | 15 300 (1060) | 22 500 (1550) | ||
| 5/8 | 0.095 | 0.53 (0.79) | 12 100 (840) | 17 400 (1198) | |
| 0.083 | 0.48 (0.71) | 10 100 (700) | 14 400 (992) | ||
| 3/4 | 0.095 | 0.66 (0.98) | 10 000 (690) | 14 300 (985) | |
| 0.083 | 0.58 (0.86) | 8 500 (590) | 12 000 (826) | ||
| 0.109 | 0.74 (1.10) | 11 100 (770) | 16 000 (1102) | ||
| 1➂ | 0.120 | 1.12 (1.67) | 9 100 (630) | 12 800 (881) | |
| 0.109 | 1.02 (1.52) | 8 100 (560) | 11 500 (792) | ||
| 0.134 | 1.20 (1.80) | 10 000 (690) | 15 000 (1034) | ||
Super Duplex Heat Exchanger Tube Chemical Composition
Super Duplex Tube
Super Duplex 2507 Tube Equivalent
| - | Russia | - | France | - | North America | Europe |
|---|---|---|---|---|---|---|
| Alloy | Werkstoff NR. | Specifications | AFNOR | Grade | UNS Designation | 1.4410 |
| Super Duplex 2507 | 1.4410 | A/SA789, A/SA790 | Z3 CN 25.06 Az | F53 | S32750 | X2 Cr Ni MoN 25.7.4 |
1.4410 Tube Tolerance
| OD | Lengths | Wall |
|---|---|---|
| ±0.005" (0.127 mm) | Coils to 80,000' (24,384 m) | ±10% |
|
<1-1/2" (38.1 mm) ±0.005" (0.13 mm)
1-1/2" (38.1 mm) to 3" (76.2 mm) ±0.010" (0.25 mm)
3-1/2" (88.9 mm) to 4" (101.6 mm) ±0.015" (0.38 mm)
|
Randoms up to +2" (50.8 mm) Cuts +1/8" (3 mm) -0" Coils to 80,000' (24,384 m) |
±10% |
Mechanical Properties of Super Duplex Stainless Steel Tubes
| Yield Strength | Tensile Strength | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Alloy | UNS Designation | ksi | psi | MPa | Spec. | psi | MPa | ksi | Elongation in 2 in. (min.) % | Modulus of Elasticity (x106psi) | Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) | Grain Size Req. | Max. Hardness | Thermal Conductivity (BTU-in/ ft2-h-°F) |
| 2507 | S32750 | 116 | 80,000 | 550 | A789, A790 | 116,000 | 800 | 80 | 15 | 27.5 | 7.2 | - | 32 Rc | |
| 2507 | S32950 | 100 | 70,000 | 485 | A789, A790 | 100,000 | 690 | 70 | 20 | - | - | - | 30.5 Rc | - |
Duplex 2507 Tube Sizes
| OD mm | WT mm | Schedule | Kg/m | inch |
|---|---|---|---|---|
| 33.040 | 6.0352) | 160 | 4.030 | 1 |
| 42.016 | 2.077 | 10S | 2.073 | 1¼ |
| 42.016 | 3.056 | 40S | 3.044 | 1¼ |
| 42.016 | 4.085 | 80S | 4.053 | 1¼ |
| 42.016 | 6.0352 | 160 | 5.069 | 1¼ |
| 48.026 | 2.077 | 10S | 3.016 | 1½ |
| 48.026 | 3.068 | 40S | 4.011 | 1½ |
| 48.026 | 5.008 | 80S | 5.049 | 1½ |
| 60.033 | 2.077 | 10S | 3.099 | 2 |
| 60.033 | 3.091 | 40S | 5.052 | 2 |
| 60.033 | 5.054 | 80S | 7.060 | 2 |
| 60.033 | 8.0742 | 160 | 11.029 | 2 |
| 73.003 | 3.005 | 10S | 5.035 | 2½ |
| 73.003 | 5.016 | 40S | 8.077 | 2½ |
| 73.003 | 7.001 | 80S | 11.059 | 2½ |
| 88.090 | 3.005 | 10S | 6.056 | 3 |
| 88.090 | 5.049 | 40S | 11.047 | 3 |
| 88.090 | 7.062 | 80S | 15.051 | 3 |
| 88.090 | 11.0132 | 160 | 21.067 | 3 |
| 101.060 | 3.005 | 10S | 7.053 | 3½ |
| 13.072 | 1.065 | 10S | 0.050 | 1/4 |
| 13.072 | 2.024 | 40S | 0.064 | 1/4 |
| 13.072 | 3.002 | 80S | 0.081 | 1/4 |
| 17.015 | 1.065 | 10S | 0.064 | 3/8 |
| 17.015 | 2.031 | 40S | 0.086 | 3/8 |
| 17.015 | 3.020 | 80S | 1.012 | 3/8 |
| 21.034 | 2.011 | 10S | 1.002 | 1/2 |
| 21.034 | 2.077 | 40S | 1.029 | 1/2 |
| 21.034 | 3.073 | 80S | 1.065 | 1/2 |
| 26.067 | 2.011 | 10S | 1.030 | 3/4 |
| 26.067 | 2.087 | 40S | 1.071 | 3/4 |
| 26.067 | 3.091 | 80S | 2.023 | 3/4 |
| 33.040 | 2.077 | 10S | 2.013 | 1 |
| 33.040 | 3.038 | 40S | 2.054 | 1 |
| 33.040 | 4.055 | 80S | 3.029 | 1 |
| 101.060 | 5.074 | 40S | 13.078 | 3½ |
| 101.060 | 8.008 | 80S | 18.092 | 3½ |
| 114.030 | 3.005 | 10S | 8.050 | 4 |
| 114.030 | 6.002 | 40S | 16.032 | 4 |
| 114.030 | 8.056 | 80S | 22.067 | 4 |
| 114.030 | 13.0492 | 160 | 34.005 | 4 |
| 141.030 | 6.055 | 40S | 22.010 | 5 |
| 141.030 | 9.053 | 80S | 31.044 | 5 |
| 141.030 | 15.0882 | 160 | 49.087 | 5 |
| 168.028 | 3.04 | 10S | 14.004 | 6 |
| 168.028 | 7.011 | 40S | 28.069 | 6 |
| 168.028 | 10.097 | 80S | 43.021 | 6 |
| 168.028 | 14.027 | 120 | 54.075 | 6 |
| 168.028 | 18.0262 | 160 | 68.059 | 6 |
| 219.008 | 8.018 | 40S | 43.020 | 8 |
| 219.008 | 12.07 | 80S | 65.063 | 8 |
| 219.008 | 18.023 | 120 | 91.030 | 8 |
| 219.008 | 23.0012 | 160 | 112.097 | 8 |
Super Duplex Tube Dimensions
| Outer Diameter (OD) | Range of Wall Thicknesses | Wall Thickness (WT) |
|---|---|---|
| 152.4 mm | 8.0 mm | 7 mm |
| 19 mm | 1.0 mm | 0.5 mm |
| 6.35 mm | 0.30 mm | 0.25 mm |
| 38.1 mm | 2.0 mm | 1 mm |
| 12.7 mm | 0.75 mm | 0.3 mm |
| 63.5 mm | 4.0 mm | 2 mm |
| 25.4 mm | 1.5 mm | 0.5 mm |
| 76.2 mm | 5.0 mm | 4 mm |
| 50.8 mm | 3.0 mm | 1.5 mm |
| 127 mm | 7.0 mm | 6 mm |
| 101.6 mm | 6.0 mm | 5 mm |
WNR 1.4410 Welded Tube HS Code
| Material | HS code |
|---|---|
| 2507 Duplex Alloy | 73041190 |
Countrywise Shipping Time Of Super Duplex Tube Material
| Country | Shipping Time in Days |
|---|---|
| Russia | 20 |
| Vietnam | 10 |
| Japan | 7 |
| Bhutan | 7 |
| Kenya | 19 |
| Cambodia | 9 |
| Norway | 45 |
| Kazakhstan | 45-60 |
| Yemen | 21 |
| Thailand | 7 |
| Jordan | 21 |
| Sweden | 45 |
| Nepal | 7 |
| Australia | 21 |
| Angola | 45 |
| Sri lanka | 6 |
| Norway | 45 |
| Cyprus | 45 |
| Algeria | 45 |
Ready Stock Of Super Duplex Stainless Steel Tube
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Duplex 2507 Welded Boiler Tube
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Seamless Small Size Super Duplex Stainless Steel Tube
Super Duplex 2507 Welded Tube For Chemical Processing