ASTM A312 / A213 / A269 / A358 / A249 TP321H Stainless Steel Pipes & Tubes
Manufacturers Of 321H Stainless Steel Pipe, ASTM A213 TP321H Stainless Steel Tubes, DIN 1.4878 SS Seamless Pipes, 321H Stainless Steel Pipe, Grade 321H Stainless Steel Welded Pipe, INOX 321H Pipe, 321H SS Seamless Pipes Supplier in Mumbai, India.
Neminox Steel & Engineering Co. are Manufacturing of high quality raw materials. Stainless Steel 321H Pipes & Tubes are manufactured using quality stainless steel in different wall thickness and diameters. These oil & gas, petrochemical and are widely used in construction, natural gas as well as other industries.
Table of Content
- Specification of 321H Stainless Steel Pipe & Tube
- Equivalent Grade of 321H Stainless Steel Pipe & Tube
- Chemical Composition ranges for stainless steel 321H grade
- Mechanical properties of stainless steel 321H grade
- Grade specifications for stainless steel 321H grade
- Pressure Rating of Stainless Steel ERW Pipe
- Dimension Chart of ASME B36.19 stainless steel pipe
- Schedule 80s Stainless Steel Pipe
- Size chart of schedule 40 stainless steel pipe
- Thickness of polished stainless steel pipe
- Standard material of Stainless Steel Pipe
- Price list of Stainless Steel 1 inch pipe
- ASTM A213 / A312 Stainless Steel TP 321H Pipe and Tube other Available Types

Looking for High Quality Stainless Steel TP321H Pipes, Schedule 40 Stainless Steel 321H Pipe, 321H SS ERW Tubing, Stainless Steel UNS S32109 Tubing, ASME SA312 TP 321H SS Seamless Pipe, Stainless Steel 321H Pipe, TP321H SS EFW Tube.
Specification of 321H Stainless Steel Pipe & Tube
SS Pipe Specification | ASTM A213, A312, A358, A269, A249, A688 ASME SA312, SA213, SA358, SA269, SA249, SA688 |
SS Welded Pipe sizes | 4 - 219 MM Wall thickness: 0.5 - 20 MM |
Stainless steel Seamless Pipe sizes | 5 To 1219.2 MM |
Stainless steel EFW Pipe sizes | 5 To 1219.2 MM |
Round Pipes available Stock | 38.1, 20, 19, 16, 23, 76.2, 18, 21, 17, 60, 25, 63.5, 28, 31.8, 101, 48, 35, 89, 22, 50.8, 114, 36, MM |
Square Pipes available Stock | 50, 25, 36, 30, 18, 17, 20, 22, 38, 23, 19, 21, 28, 24, MM |
Rectangle Pipes available Stock | 28*13, 34*22, 10*30, 29*14, 95*4 10*50, 75*45, 28*25, 10*40, 30*22, 60*30, 30*20, 30*15, 36*23, 23*11, 20*10, 50*25, 25*13, 24*12,5 mm |
thickness | Exact 0.28, 0.32, 0.51, 1.11, 0.25, 0.41, 1.15, 0.71, 0.61, 0.37, 1.41, 0.91 MM |
Pipes Schedule | SCH20, XXS, SCH60, SCH160, XS, SCH40S, SCH30, SCH10S, SCH80, SCH120, STD, SCH10, SCH5, SCH80, SCH40, SCH140, |
SS Pipes Form | Round, Rectangular, Straight, Hydraulic, Square, Hollow Pipe Etc. |
Stainless steel Pipe End | Treaded, Beveled End, Plain End. |
Pipes Length | Single random, Double and Cut length. |
Marking | All SS Pipes are marked as follows: Standard, Grade, Thickness, Length, OD, Heat No. |
Pipe Finish | MF AP, BA, Polished, |
Material test certificates | Material test certificate as per EN 10204/ 3.1B and EN 10204 3.2 |
Equivalent Grade of 321H Stainless Steel Pipe & Tube
STANDARD | UNS | WERKSTOFF NR. |
SS 321H | S32109 | 1.4878 |
Chemical Composition ranges for stainless steel 321H grade
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Other | |
321H | min. max |
0.04 0.08 |
2.00 | 0.75 | 0.045 | 0.030 | 17.0 19.0 |
- | 9.0 12.0 |
- | Ti=4(C+N) 0.70 |
Mechanical properties of stainless steel 321H grade
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
Rockwell B (HR B) max | Brinell (HB) max | ||||
321H | 515 | 205 | 40 | 95 | 217 |
ASTM 321H Stainless Steel Pipes & Tubes
321H also has a requirement for a grain size of ASTM No 7 or coarser.

Square Pipe

Round Pipe

Rectangular Pipe
Grade specifications for stainless steel 321H grade
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
321H | S32109 | 321S51 | - | 1.4878 | X10CrNiTi18-10 | - | SUS 321H |
Pressure Rating of Stainless Steel ERW Pipe
SS Pipe Pressure Rating (psig) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
SS Pipe Size(inches) | SS Pipe Schedule | Temperature(F) | ||||||||
100 | 200 | 300 | 400 | 500 | 600 | 650 | 700 | 750 | ||
1" | 40 | 3048 | 2629 | 2362 | 2171 | 2019 | 1924 | 1867 | 1824 | 1810 |
80 | 4213 | 3634 | 3265 | 3002 | 2791 | 2659 | 2580 | 2528 | 2501 | |
160 | 6140 | 5296 | 4759 | 4375 | 4068 | 3876 | 3761 | 3684 | 3646 | |
1 1/2" | 40 | 2257 | 1947 | 1750 | 1608 | 1496 | 1425 | 1383 | 1354 | 1340 |
80 | 3182 | 2744 | 2466 | 2267 | 2108 | 2009 | 1949 | 1909 | 1889 | |
160 | 4619 | 3984 | 3580 | 3291 | 3060 | 2916 | 2829 | 2772 | 2743 | |
2" | 40 | 1902 | 1640 | 1474 | 1355 | 1260 | 1201 | 1165 | 1141 | 1129 |
80 | 2747 | 2369 | 2129 | 1957 | 1820 | 1734 | 1682 | 1648 | 1631 | |
160 | 4499 | 3880 | 3486 | 3205 | 2980 | 2840 | 2755 | 2699 | 2671 | |
3" | 40 | 1806 | 1558 | 1400 | 1287 | 1196 | 1140 | 1106 | 1084 | 1072 |
80 | 2553 | 2202 | 1979 | 1819 | 1691 | 1612 | 1564 | 1532 | 1516 | |
160 | 3840 | 3312 | 2976 | 2736 | 2544 | 2424 | 2352 | 2304 | 2280 | |
4" | 40 | 1531 | 1321 | 1187 | 1091 | 1014 | 967 | 938 | 919 | 909 |
80 | 2213 | 1909 | 1715 | 1577 | 1466 | 1397 | 1355 | 1328 | 1314 | |
160 | 3601 | 3106 | 2791 | 2566 | 2386 | 2273 | 2206 | 2161 | 2138 | |
5" | 40 | 1342 | 1158 | 1040 | 956 | 889 | 847 | 822 | 805 | 797 |
80 | 1981 | 1709 | 1535 | 1411 | 1312 | 1250 | 1213 | 1189 | 1176 | |
160 | 3414 | 2945 | 2646 | 2433 | 2262 | 2155 | 2091 | 2049 | 2027 | |
6 | 40 | 1219 | 1052 | 945 | 869 | 808 | 770 | 747 | 732 | 724 |
80 | 1913 | 1650 | 1483 | 1363 | 1267 | 1208 | 1172 | 1148 | 1136 | |
160 | 3289 | 2836 | 2549 | 2343 | 2179 | 2076 | 2014 | 1973 | 1953 | |
8" | 40 | 1073 | 926 | 832 | 765 | 711 | 678 | 657 | 644 | 637 |
80 | 1692 | 1459 | 1311 | 1205 | 1121 | 1068 | 1036 | 1015 | 1005 | |
160 | 3175 | 2738 | 2460 | 2262 | 2103 | 2004 | 1944 | 1905 | 1885 | |
10" | 40 | 974 | 840 | 755 | 694 | 645 | 615 | 596 | 584 | 578 |
80 | 1609 | 1388 | 1247 | 1147 | 1066 | 1016 | 986 | 966 | 56 | |
160 | 3147 | 2714 | 2439 | 2242 | 2085 | 1986 | 1927 | 1880 | 1868 |
Dimension Chart of ASME B36.19 stainless steel pipe
Stainless Steel Seamless Pipe Sizes in (Inches) |
Diameter in Inches | Wall Thickness in Inches | Weight Lbs/Ft |
304 and 304L | 316 and 316L |
|
---|---|---|---|---|---|---|
Outer diameter | Inner diameter | |||||
1/2 | 0.840 | 0.622 | 0.109 | 0.851 | - | - |
1/8 | 0.405 | 0.269 | 0.068 | 0.244 | - | - |
1/4 | 0.504 | 0.364 | 0.088 | 0.424 | - | - |
3/8 | 0.675 | 0.493 | 0.091 | 0.567 | - | - |
3/4 | 1.050 | 0.824 | 0.113 | 1.131 | - | - |
2-1/2 | 2.875 | 2.469 | 0.203 | 5.793 | - | - |
1 | 1.315 | 1.049 | 0.133 | 1.679 | - | - |
8 | 8.625 | 7.981 | 0.322 | 28.550 | - | - |
1-1/4 | 1.660 | 1.380 | 0.140 | 2.273 | - | - |
1-1/2 | 1.900 | 1.610 | 0.145 | 2.718 | - | - |
2 | 2.375 | 2.067 | 0.154 | 3.653 | - | - |
3 | 3.500 | 3.068 | 0.216 | 7.576 | - | - |
3-1/2 | 4.000 | 3.548 | 0.226 | 9.109 | - | - |
12 | 12.750 | 12.000 | 0.375 | 49.560 | - | - |
4 | 4.500 | 4.026 | 0.237 | 10.790 | - | - |
5 | 5.563 | 5.047 | 0.258 | 14.620 | - | - |
6 | 6.625 | 6.065 | 0.280 | 18.970 | - | - |
10 | 10.750 | 10.020 | 0.365 | 40.480 | - | - |
Schedule 80s Stainless Steel Pipe
Stainless Steel Seamless Pipe Sizes in (Inches) |
Diameter in Inches | Wall Thickness in Inches | Weight Lbs/Ft |
304 and 304L | 316 and 316L |
|
---|---|---|---|---|---|---|
Outer diameter | Inner diameter | |||||
1/8 | 0.405 | 0.215 | 0.095 | 0.314 | - | - |
1 | 1.315 | 0.957 | 0.179 | 2.172 | - | - |
1/4 | 0.540 | 0.302 | 0.119 | 0.535 | - | - |
2-1/2 | 2.875 | 2.323 | 0.276 | 7.661 | - | - |
3/8 | 0.675 | 0.423 | 0.126 | 0.738 | - | - |
1/2 | 0.840 | 0.546 | 0.147 | 1.088 | - | - |
3 | 3.500 | 2.900 | 0.300 | 10.250 | - | - |
3/4 | 1.050 | 0.742 | 0.154 | 1.474 | - | - |
1-1/4 | 1.660 | 1.278 | 0.191 | 2.997 | - | - |
1-1/2 | 1.900 | 1.500 | 0.200 | 3.631 | - | - |
2 | 2.375 | 1.939 | 0.218 | 5.022 | - | - |
3-1/2 | 4.000 | 3.364 | 0.318 | 12.500 | - | - |
4 | 4.500 | 3.826 | 0.337 | 14.980 | - | - |
8 | 8.625 | 7.625 | 0.500 | 43.390 | - | - |
5 | 5.563 | 4.813 | 0.375 | 20.780 | - | - |
6 | 6.625 | 5.761 | 0.432 | 28.570 | - | - |
Stainless Steel Pipes & Tubes






Size chart of schedule 40 stainless steel pipe
Wall Thickness (WT) | Outer diameter sizes in Inches |
---|---|
.010 | 1/16 , 1/8 , 3/16 |
.020 | 1/16 , 1/8 , 3/16 , 1/4 , 5/16 , 3/8 |
.012 | 1/8 |
.016 | 1/8 , 3/16 |
.028 | 1/8 , 3/16 , 1/4 , 5/16 , 3/8 , 1/2 , 3/4 , 1 , 1 1/2 , 2 |
.035 | 1/8 , 3/16 , 1/4 , 5/16 , 3/8 , 7/16 , 1/2 , 16 , 5/8 , 3/4 , 7/8 , 1 , 1 1/4 , 1 1/2 , 1 5/8 , 2 , 2 1/4 |
.049 | 3/16 , 1/4 , 5/16 , 3/8 , 1/2 , 16 , 5/8 , 3/4 , 7/8 , 1 , 1 1/8 , 1 1/4 , 1 1/2 , 1 5/8 , 2 , 2 1/4 |
.065 | 1/4 , 5/16 , 3/8 , 1/2 , 16 , 5/8 , 3/4 , 7/8 , 1 , 1 1/4 , 1 1/2 , 1 5/8 , 1 3/4 , 2 , 2 1/2 , 3 |
.083 | 1/4 , 3/8 , 1/2 , 5/8 , 3/4 , 7/8 , 1 , 1 1/4 , 1 1/2 , 1 5/8 , 1 7/8 , 2 , 2 1/2 ,3 |
.095 | 1/2 , 5/8 , 1 , 1 1/4 , 1 1/2 , 2 |
.109 | 1/2 , 3/4 , 1 , 1 1/4 , 1 1/2 , 2 |
.120 | 1/2 , 5/8 , 3/4 , 7/8 , 1 , 1 1/4 , 1 1/2 , 2 , 2 1/4 , 2 1/2 , 3 |
.125 | 3/4 , 1 , 1 1/4 , 1 1/2 , 2 , 3 , 3 1/4 |
.134 | 1 |
.250 | 3 |
.375 | 3 1/2 |
Thickness of polished stainless steel pipe
Types | Wall thickness | Out diameter | Length |
---|---|---|---|
SS Welded Pipe (in Stock + Custom Sizes) | 1.0 ~ 15.0 mm | 5 ~ 1219.2 MM | upto 6 M |
SS Seamless Pipe (Custom Size) | As per requirement | 5 ~ 203.2 MM | upto 6 M |
NB Sizes (in stock) | SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 | 1/8” ~ 8” | upto 6 M |
Standard material of Stainless Steel Pipe
AMS/ ASTM Specifictaion | Types |
AMS 5558 | Steel Tubing, Welded, Corrosion and Heat Resistant 18 Cr; 11 Ni, (Cb + Ta) (SAE 30348) Thin Wall. |
AMS 5572 | Steel Tubing, Seamless Corrosion and Heat Resistant 25 Cr; 20 Ni (SAE 30310). Annealed Structural. |
AMS 5571 | Steel Tubing, Seamless Corrosion andHeai Resistant 18 Cr; 11 Ni; (Cb + Ta)‹SAE 30347). Annealed Structural. |
ASTM A270 | Seamless and Welded Austenitic Stainless Steel Sanitary Tubing. |
AMS 5574 | Seamless Type 309S Annealed Structural. |
ASTM A268 ASME SA268 |
Welded & Seamless ferritic SS Tubing for General Service, Available Types 430, 446, 429, 409, 405, 329, 430Ti, 410, 443, XMs & others |
MIL-T-8504 (T 304) | Tubing, Steel, Corrosion Resistant 18-8) Annealed, Aircraft Hydraulic Seamless, Welded. |
MIL-T-6737 (T 321) | Tubing, Steel, Corrosion and Heat Resistant (18-8 Stabilized), Welded. Annealed. |
ASTM A358 | Electric fusion welded austenitic chromium nickel altoel for high temperature |
ASTM A376 | Seamless austenitic pipe for high temp central station service. |
ASTM A 409 | Welded large outside diameter light wall austenitic chromium nickel. AS pipe for corrosive or High-Temperature Service. |
ASTM A213 ASME SA 213 |
Seamless Ferritic Stainless Steel and Austenitic Stainless Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes. |
AMS 5565 | Steel Tubing, Welded, Corrosion Resistant 19 Cr; 9 Ni (SAE 30304). |
AMS 5561 | Steel Tubing, Welded and DrawnHigh Pressure Hydraulic. |
ASTM A530 | general requirements for carbon, ferritic alloy, and austenitic alloy steel pipe. |
ASTM A511 | Seamless Pipes Mechanical Tubing. |
ASTM A632 | Welded and Seamless austenitic tubing for General Service in small diameter. |
AMS 5567 | Steel Tubing, Seamless or Welded Corrosion Resistant 19 Cr; 10 Ni (SAE 30304) Hydraulic, Solution Treated. |
AMS 5557 | Steel Tubing, Corrosion and Heat Resistant 18 Cr; 11 Ni; Ti (SAE30321) Hydraulic. Type-1 Seamless Pipes Type-2 Welded & Drawn Pipes |
AMS 5576 | Steel Tubing, Welded, Corrosion and Heat Resistant 18 Cr; 10 Ni; Ti (SAE 30321). Annealed Structural. |
MIL-T-5695 | Tubing, Steel, Corrosion Resistant(304),Cold Drawn (1/2 or 1/4 hard Smls or W & D. |
MIL-T-8808 (T 321) (T 347) |
Tubing, Steel, Corrosion Resistant (18-8 Stabilized), Aircraft Hydraulic Quality. Annealed. Seamless, Welded & Drawn. |
AMS 5560 | Steel Tubing, Seamless CorrosionResistant 19 Cr; 9 Ni (SAE 30304). |
AMS 556 | Steel Tubing, Corrosion and Heat Resistant 18 Cr; 11 Ni; (Cb + Ta) (SAE 30347) Hydraulic. |
AMS 5647 | Seamless Type 304L |
ASTM A249 ASME SA249 |
Austenitic SS welded boiler, Superheater, Heat-Exchanger, and Condenser Tubes. |
MIL-T-8506 (T 304) | Tubing, Steel, Corrosion Resistant (304) Annealed. Seamless, Welded. |
MIL-T-8606 (T 304L) (T 321) (T 347) |
Tubin , steel, Corrosion Resistant 18-8 Annealed. Welded & Drawn. |
ASTM A554 | Welded Pipes MechanicalTubing. |
AMS 5570 | Steel Tubing, Seamless Corrosion and Heat Resistant 18 Cr; 10 Ni; Ti tSAE 30321). Annealed Structural. |
MIL-T-8973 (T304L) (T 316L) (T 321) (T 347) |
Tubing, Steel, Corrosion Resistant, Aerospace Vehicle Hydraulic System. ³/ Hard. Seamless, Welded & Drawn. |
AMS 5562 | Steel Tubing, Seamless Corrosion Resistant 21 Cr; 6 Ni; 9 Mn Annealed. |
AMS 5646 | Seamless Type 347 |
AMS 5573 | Seamless Type 316 Annealed Structural. |
ASTM A450 ASME SA450 |
General Requirements for Alloy Steel Tubes. |
ASTM A269 | Seamless and Welded Austenitic Stainless Steel Tubing for General Service. |
A EBS 5577 | Steel Tubing, Welded, Corrosion and Heat Resistant 25 Cr; 20 Ni; (SAE 30310). Annealed Structural. |
AMS 5639 | Seamless Type 304 |
AMS 5645 | Seamless Type 321 |
ASTM A312 ASME SA312 |
Seamless and Welded Austenitic Pipes. |
AMS 5648 | Seamless Type 316 |
AMS 5566 | Steel Tubing, Seamless or Welded Corrosion Resistant 19 Cr; 10 Ni (SAE 30304) High Pressure Hydraulic. |
AMS 5575 | Steel Tubing, Seamless Corrosion and Heat Resistant 16 Cr; 11 Ni; (Cb + Ta) (SAE 30347). Annealed Structural. |
MIL-T-6845 (T 304) | Tubing, Steel, Corrosion Resistant 304) Aerospace Vehicle Hydraulic ³/ Hard, Seamless, Weldsd Drawn. |
MIL-P-1144 (T 304) (T 304L) (T 316) (T 316L) (T-321) (T 347) |
Pipes, Stainless Steel, (Corrosion Resisting). Seamless or Welded. Annealed. |
AMS 5559 | Steel Tubing, Welded, Corrosion and Heat Resistant 18 Cr, 10 Ni, Ti, (SAE 30321) Thin Wall. |
Price list of Stainless Steel 1 inch pipe
NB (MM) |
SIZE OD (MM) |
THICKNESS (MM) |
SCHEDULE |
UNIT WT (KG/MTR) |
PRICE LIST IN INR (Rs/MTR) |
ERW PIPE PRICE ($/MTR) | |
---|---|---|---|---|---|---|---|
15 | 21.30 | 2.11 | 1/2" | SCH.10S | 1.02 | 231.54 | $ 3.32 |
21.30 | 2.77 | 1/2" | SCH.40S | 1.29 | 292.83 | $ 4.20 | |
20 | 26.70 | 2.11 | 3/4" | SCH.10S | 1.30 | 295.10 | $ 4.23 |
26.70 | 2.87 | 3/4" | SCH.40S | 1.71 | 388.17 | $ 5.57 | |
25 | 33.40 | 2.77 | 1" | SCH.10S | 2.12 | 481.24 | $ 6.91 |
33.40 | 3.38 | 1" | SCH.40S | 2.54 | 576.58 | $ 8.27 | |
32 | 42.20 | 2.77 | 1.1/4" | SCH.10S | 2.73 | 619.71 | $ 8.89 |
42.20 | 3.56 | 1.1/4" | SCH.40S | 3.44 | 780.88 | $ 11.21 | |
40 | 48.30 | 2.77 | 1.1/2" | SCH.10S | 3.16 | 717.32 | $ 10.29 |
48.30 | 3.68 | 1.1/2" | SCH.40S | 4.11 | 932.97 | $ 13.39 | |
50 | 60.30 | 2.77 | 2" | SCH.10S | 3.99 | 905.73 | $ 13.00 |
60.30 | 3.91 | 2" | SCH.40S | 5.52 | 1253.04 | $ 17.98 | |
65 | 73.00 | 3.05 | 2.1/2" | SCH.10S | 5.34 | 1212.18 | $ 17.40 |
73.00 | 5.16 | 2.1/2" | SCH.40S | 8.76 | 1988.52 | $ 28.54 | |
80 | 88.90 | 3.05 | 3" | SCH.10S | 6.55 | 1486.85 | $ 21.34 |
88.90 | 5.49 | 3" | SCH.40S | 11.45 | 2599.15 | $ 37.30 | |
100 | 114.30 | 3.05 | 4" | SCH.10S | 8.48 | 1924.96 | $ 27.62 |
114.30 | 6.02 | 4" | SCH.40S | 16.32 | 3704.64 | $ 53.16 | |
125 | 141.30 | 3.40 | 5" | SCH.10S | 11.74 | 2664.98 | $ 38.24 |
141.30 | 6.55 | 5" | SCH.40S | 22.09 | 5014.43 | $ 71.96 | |
150 | 168.30 | 3.40 | 6" | SCH.10S | 14.03 | 3184.81 | $ 45.70 |
168.30 | 7.11 | 6" | SCH.40S | 28.69 | 6512.63 | $ 93.46 | |
200 | 219.10 | 3.76 | 8" | SCH.10S | 20.27 | 4601.29 | $ 66.03 |
219.10 | 8.18 | 8" | SCH.40S | 43.18 | 9801.86 | $ 140.66 |
ASTM A213 / A312 Stainless Steel TP 321H Pipe and Tube other Available Types
Stainless Steel TP321H Seamless Pipes | Stainless Steel TP321H Seamless Tubing |
ASTM A312 Stainless Steel 321H Welded Pipes | A249 SS 321H Welded Tubes |
321H Stainless Steel ERW Pipes | SS SUS 321H Rectangular Pipes |
ASTM A213 Stainless Steel 321H Rectangular Tubes | TP321H Stainless Steel ERW Tubes Supplier |
UNS S32109 Stainless Steel Seamless Tubing | Stainless Steel TP321H Heat Ex-changer Tubes |
Stainless Steel DIN 1.4878 Pipes | ASTM A213 321H Stainless Steel Square Pipes |
321H SS Electric Fusion Welding Pipes | TP321H SS EFW Tubing Stockiest |
Stainless Steel ASTM A213 TP321H Welded Tubing | 321H Stainless Steel ASTM A213 Seamless Tubing |
ASME SA 249 SS 321H Welded Tubes Exporter | 321H Stainless Steel Instrumentation Tubes Dealer |