Stainless Steel Mechanical Tube

Steel mechanical tubes play a role in numerous industries, such as construction, automotive, and manufacturing. These tubes are renowned for their durability, impressive strength, and remarkable resistance to corrosion – all thanks to the material they're made of, i.e., stainless steel.


The term "mechanical" signifies that these tubes are specifically designed to withstand kinds of stress. Whether its pressure bending or force applied during handling and operation steels remarkable strength to weight ratio allows these tubes to endure stress without compromising their structural integrity.


One noteworthy characteristic of steel is its resistance to corrosion, making these tubes suitable for use in environments even if they are corrosive or high in humidity. This property also extends the lifespan of the tubes, reducing the need for maintenance or replacements.


The manufacturing process of steel tubes involves meticulous craftsmanship that ensures smooth interiors and uniform wall thickness. This enhances their ability to handle external pressures effectively. Additionally these tubes come in sizes, shapes and wall thicknesses to provide design flexibility, for applications.


Different grades of steel are utilized in the production of these tubes. The choice of which grade to use generally depends on the requirements of the application. For instance the 304 grade is often preferred due to its versatility and its ability to be easily shaped and welded. On the other hand the 316 grade is chosen for its increased resistance to corrosion against chlorides.


Steel mechanical tubes represent a combination of durability, versatility and resistance to corrosion. With their construction and ability to withstand environments these tubes are crucial components, across various industries. Ultimately, their usage helps improve efficiency and prolong the lifespan of systems and structures.

Specification

Standards -
Types Welded, Seamless, ERW, Fabricated, CEW, CDW, CDS, DOM
Size range 1/2" OD - 12" OD
Production technique Decoiling, Punching, Bending, Welding,  Cutting, Moulding
Standards ASTM, AISI, JIS, DIN, EN, SUS, GB
Form Round, Hydraulic,  Coiled,  Square,  U Shape,  Rectangular,  Straight,  Honed Tubes,  Pan Cake Coils
Thickness Range SCH 10, SCH 160, SCH XXH, SCH XXS, SCH 5, SCH 40, SCH XS, SCH 80S, SCH 80
Custom Size/Thickness Available
End Treaded, Beveled End, Plain End
Surface Finish 8K,  1D,  No.3,  180G,  BA,  No.4,  500G,  No.1,  Mirror Polished,  320G,  HL,  No.8, 400G,  2B,  600G or 800G Mirror finish Tubing,  2D,  400G Satin/ Hairline or Custom Finish as per customer's specification.
Marking Standard
Name of Manufacturer
Schedule
Pressure Class
Tube Size, etc
Test Certificates
Third Party Inspection Report
Manufacturer Test Certificate
Raw Materials Certificate
100% Radiography Test Report
Laboratory Test Certificate from Govt. Approved Lab
EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)

Available Tubes in Our Warehouse

Thin Wall Tubing

Thin Wall Tubing

Seamless Tube

Seamless Tube

Erw Tube

Erw Tube

Bright Annealed Tube

Bright Annealed Tube

Coil Tubing

Coil Tubing

Condenser Tube

Condenser Tube

Welded Tube

Welded Tube

Heat Exchanger Tube

Heat Exchanger Tube

Small Diameter Tubing

Small Diameter Tubing

Pressure Rating

Tube Size
(inches)
Tube ScheduleTemperature (oF)
100200300400500600650700750
1"40304826292362217120191924186718241810
80421336343265300227912659258025282501
160614052964759437540683876376136843646
1 1/2"40225719471750160814961425138313541340
80318227442466226721082009194919091889
160461939843580329130602916282927722743
2"40190216401474135512601201116511411129
80274723692129195718201734168216481631
160449938803486320529802840275526992671
3"40180615581400128711961140110610841072
80255322021979181916911612156415321516
160384033122976273625442424235223042280
4"4015311321118710911014967938919909
80221319091715157714661397135513281314
160360131062791256623862273220621612138
5"40134211581040956889847822805797
80198117091535141113121250121311891176
160341429452646243322622155209120492027
6"4012191052945869808770747732724
80191316501483136312671208117211481136
160328928362549234321792076201419731953
8"401073926832765711678657644637
80169214591311120511211068103610151005
160317527382460226221032004194419051885
10"40974840755694645615596584578
80160913881247114710661016986966956
160314727142439224220851986192718801868

Chemical Composition

STAINLESS STEEL Mechanical Tube GRADESUNSCMnPSSiCrNiMoTiNbN
TP304S304000.0820.0450.03118.0-20.08.0-11.0
TP304LS304030.03520.0450.03118.0-20.08.0-13.0
TP316S31600.0820.0450.03116.0-18.011.0-14.02.0-3.0
TP316LS316030.03520.0450.03116.0-18.010.0-14.02.0-3.0

Mechanical Properties

MaterialHeatTemperureTensile StrengthYield StrengthElongation %, Min
TreatmentMin.Ksi (MPa), Min.Ksi (MPa), Min.
º F(º C)
TP304Solution1900 (1040)75(515)30(205)35
TP304LSolution1900 (1040)70(485)25(170)35
TP316Solution1900(1040)75(515)30(205)35
TP316LSolution1900(1040)70(485)25(170)35

Tolerances

Size
Inches 
ODB
Over/
Under, In.
WallCD Over/
Under %
Cut 
Length Inches
OvalityB Double Outside Diameter Tolerlance 
When Wall Is:
Under 1/20.00515+1/8 –0less than 0.015
1/2 to 1-1/2 excl.0.00510+1/8 –0less than 0.065
1-1/2 to 3-1/2 excl.0.01010+3/16 –0less than 0.095
3-1/2 to 5-1/2 excl.0.01510+3/16 –0less than 0.150
5-1/2 to 8 excl.0.03010+3/16 –0less than 0.240
8 to 8-5/8 excl.0.04510+3/16 –0less than 0.300

Tolerances (Hot Finished Round Tube)

Tolerances (Hot Finished Round Tube)
Specified
Size,
Outside
Diameter,
In.
Ratio of
Wall
Thickness
to Outside
Diameter
Tolerances (Hot Finished Round Tube)Permissible
Variations
in Cut 
Length
(in.A)
Outside
Diameter,
In.
Wall Thickness, %
0.109, In. 
and under
0.109 to 0.172
(in., incl.)
Over 0.172
to 0.203 
(in., incl.)
Over 
0.203, In.
OverUnderOverUnderOverUnderOverUnderOverUnder
Under 3all wall
thicknesses
0.0230.02316.516.51515141412.512.53/160
3 to 5-1/2
excl.
all wall
thicknesses
0.0310.03116.516.51515141412.512.53/160
5-1/2 to 8
excl.
all wall
thicknesses
0.0470.047141412.512.53/160
8 to 10-3/4
excl
5% and over0.0470.04712.512.53/160
10-3/4 to
12-3/4 incl.
under 5%0.0630.06312.512.53/160

Tube Wall Thickness /Shedule

GAUGETHICKNESS RANGE(INCHES)TYPICAL VALUE (INCHES)
220.025 through 0.0290.028
200.031 through 0.0350.035
190.038 through 0.0420.042
180.044 through 0.0490.049
170.053 through 0.0580.058
160.060 through 0.0650.065
150.066 through 0.0740.072
140.075 through 0.0850.083
130.087 through 0.0970.095
120.101 through 0.1110.109
110.112 through 0.1220.12
100.126 through 0.1360.134
90.140 through 0.1500.148
80.157 through 0.1670.165
70.175 through 0.1850.18

Tube Sizes

OD
in.
WT
in.
lb/ftMax. OD,
mm
Min. ID,
mm
Max. OD,
mm
Min. ID,
mm
Size Chucked true to ODChucked true to ID
1.5000.3134.0291.4571.0371.4151.000
1.5000.3754.5801.4570.9311.4120.181
1.6250.2503.7321.5821.2651.5441.231
1.6250.3134.4531.5821.1591.5401.122
1.6250.3755.0891.5821.0521.5371.012
1.7500.2504.0711.7071.3911.6691.356
1.7500.3134.8771.7071.2841.6651.247
1.7500.3755.5981.7071.1781.6621.138
1.8750.2504.4101.8321.5171.7941.482
1.8750.3135.3011.8321.4101.7901.372
1.8750.3756.1071.8321.3031.7871.263
1.8750.4386.8271.8321.1961.7831.154
2.0000.3756.6151.9571.4281.9121.389
2.0000.2504.7501.9571.6411.9191.607
2.0000.3135.7251.9571.5351.9151.498
2.0000.4387.4211.9571.3221.9081.279
2.0000.5008.1421.9571.2151.9051.170
2.1250.1883.9442.0831.8791.6541.847
2.1250.2505.0892.0831.7672.0451.732
2.1250.3136.1492.0831.6602.0411.623
2.1250.3757.1242.0831.5532.0381.513
2.1250.4388.0152.0831.4462.0341.404
2.1250.5008.8212.0831.3402.0311.294
2.2500.1884.1982.2102.0042.1741.972
2.2500.2505.4282.2101.8912.1711.857
2.2500.3136.5732.2101.7852.1681.748
2.2500.3757.6332.2101.6782.1641.639
2.2500.4388.6082.2101.5722.1611.529
2.2500.5009.4992.2101.4652.1571.420
2.3750.1884.4532.3362.1282.3012.096
2.3750.2505.7672.3362.0172.2981.982
2.3750.3136.9972.3361.9102.2941.872
2.3750.3758.1422.3361.8032.2911.763
2.3750.4389.2022.3361.6962.2871.654
2.3750.50010.1782.3361.5902.2831.544
2.5000.1884.7072.4622.2512.4272.219
2.5000.2506.1072.4622.1402.4232.106
2.5000.3137.4212.4622.0352.4201.997
2.5000.3758.6512.4621.9282.4171.888
2.5000.4389.7962.4621.8222.4131.779
2.5000.50010.8562.4621.7152.4091.669
2.5000.62512.7222.4621.5022.4021.450
2.5000.75014.2492.4621.2882.3951.232
2.6250.1884.9622.5892.3752.5532.343
2.6250.2506.4462.5892.2642.5502.230
2.6250.3137.8452.5892.1582.5462.121
2.6250.3759.1602.5892.0532.5432.013
2.6250.43810.3902.5891.9462.5391.904
2.6250.50011.5352.5891.8392.5361.794
2.6250.62513.5702.5891.6262.5291.576
2.6250.75015.2662.5891.4132.5221.357
2.7500.1885.2162.7132.4982.6782.467
2.7500.2506.7852.7132.3882.6742.353
2.7500.3138.2692.7132.2822.6702.244
2.7500.3759.6692.7132.1762.6672.136
2.7500.43810.9832.7132.0712.6642.028
2.7500.50012.2132.7131.9652.6601.919
2.7500.62514.4182.7131.7512.6531.700
2.7500.75016.2842.7131.5382.6461.481
2.8750.1885.4702.8372.6222.8022.590
2.8750.2507.1242.8372.5112.7982.476
2.8750.3138.6932.8372.4062.7952.368
2.8750.37510.1782.8372.3002.7922.260
2.8750.43811.5772.8372.1942.7882.152
2.8750.50012.8922.8372.0892.7852.043
2.8750.62515.2662.8371.8762.7781.825
2.8750.75017.3022.8371.6632.7701.606
3.0000.1885.7252.9542.7572.9182.725
3.0000.2507.4642.9542.6452.9152.610
3.0000.3139.1172.9542.5392.9112.502
3.0000.37510.6862.9542.4332.9082.394
3.0000.43812.1712.9542.3282.9042.285
3.0000.50013.5702.9542.2222.9012.177
3.0000.62516.1142.9542.0112.8941.960
3.0000.75018.3202.9541.7982.8871.741
3.0000.87520.1852.9541.5842.8801.522
3.0001.00021.7122.9541.3712.8731.304
3.1250.1885.9793.0782.8823.0422.850
3.1250.2507.8033.0782.7693.0392.735
3.1250.3139.5413.0782.6633.0352.626
3.1250.37511.1953.0782.5573.0322.517
3.1250.43812.7643.0782.4523.0282.409
3.1250.50014.2493.0782.3463.0252.301
3.1250.62516.9633.0782.1353.0182.084
3.1250.75019.3373.0781.9223.0111.866
3.1250.87521.3733.0781.7093.0041.648
3.1251.00023.0693.0781.4962.9971.429
3.2500.1886.2343.2023.0073.1672.976
3.2500.2508.1423.2022.8953.1632.860
3.2500.3139.9653.2022.7883.1602.750
3.2500.37511.7043.2022.6813.1562.641
3.2500.43813.3583.2022.5753.1532.533
3.2500.50014.9273.2022.4703.1492.424
3.2500.62517.8113.2022.2593.1432.208
3.2500.75020.3553.2022.0483.1351.991
3.2500.87522.5603.2021.8343.1281.772
3.2501.00024.4263.2021.6213.1211.554
3.3750.1886.4883.3273.1333.2913.102
3.3750.2508.4813.3273.0213.2882.986
3.3750.31310.3903.3272.9143.2842.876
3.3750.37512.2133.3272.8063.2812.767
3.3750.43813.9523.3272.6993.2772.656
3.3750.50015.6063.3272.5933.2742.548
3.3750.62518.6593.3272.3823.2672.331
3.3750.75021.3733.3272.1713.2602.115
3.3750.87523.7483.3271.9593.2531.898
3.3751.00025.7833.3271.7463.2461.679
3.5000.1886.7433.4513.2593.4153.227
3.5000.2508.8213.4513.1463.4123.112
3.5000.31310.8143.4513.0393.4083.002
3.5000.37512.7223.4512.9323.4052.892
3.5000.43814.5453.4512.8253.4012.782
3.5000.50016.2843.4512.7183.3982.672
3.5000.62519.5073.4512.5063.3912.456
3.5000.75022.3913.4512.2953.3842.239
3.5000.87524.9353.4512.0843.3772.022
3.5001.00027.1403.4511.8713.3701.804
3.7500.1887.2513.7003.5103.6643.478
3.7500.2509.4993.7003.3983.2673.363
3.7500.31311.6623.7003.2913.6573.253
3.7500.37513.7403.7003.1833.6543.143
3.7500.43815.7333.7003.0763.6503.033
3.7500.50017.6413.7002.9693.6462.923
3.7500.62521.2033.7002.7543.6402.703
3.7500.75024.4263.7002.5433.6332.486
3.7500.87527.3103.7002.3313.6262.270
3.7501.00029.8543.7002.1203.6192.053
4.0000.1887.7603.9483.7613.9123.729
4.0000.25010.1783.9483.6493.9093.614
4.0000.31312.5103.9483.5413.9063.504
4.0000.37514.7573.9483.4343.9023.394
4.0000.43816.9203.9483.3273.8983.284
4.0000.50018.9983.9483.2203.8953.174
4.0000.62522.8993.9483.0063.8882.954
4.0000.75026.4623.9482.9713.8812.735
4.0000.87529.6843.9482.5793.8742.517
4.0001.00032.5683.9482.3683.8672.300
4.2500.1888.2694.1974.0134.1613.980
4.2500.25010.8564.1973.9004.1573.865
4.2500.31313.3584.1973.7934.1543.755
4.2500.37515.7754.1973.6864.1503.645
4.2500.43818.1084.1973.5784.1473.535
4.2500.50020.3554.1973.4714.1443.426
4.2500.62524.5964.1973.2574.1373.206
4.2500.75028.4974.1973.0434.1302.986
4.2500.87532.0594.1972.8284.1232.766
4.2501.00035.2824.1972.6154.1162.548
4.5000.1888.7784.4464.2644.4094.231
4.5000.25011.5354.4464.1514.4064.116
4.5000.31314.2064.4464.0444.4034.006
4.5000.37516.7934.4463.9374.3993.896
4.5000.43819.2954.4463.8304.3963.786
4.5000.50021.7124.4463.7224.3933.676
4.5000.62526.2924.4463.5084.3853.456
4.5000.75030.5334.4463.2934.3783.237
4.5000.87534.4344.4463.0794.3723.017
4.5001.00037.9964.4462.8654.3652.797
4.7500.1889.2874.6944.5154.6584.483
4.7500.25012.2134.6944.4024.6554.367
4.7500.31315.0544.6944.2954.6514.257
4.7500.37517.8114.6944.1884.6484.147
4.7500.43820.4824.6944.0814.6444.037
4.7500.50023.0694.6943.9744.6413.928
4.7500.62527.9884.6943.7594.6343.708
4.7500.75032.5684.6943.5454.6273.488
4.7500.87536.8094.6943.3304.6203.268
4.7501.00040.7104.6943.1164.6133.048
5.0000.1889.7964.9434.7674.9074.734
5.0000.25012.8924.9434.6544.9034.619
5.0000.31315.9024.9434.5464.9004.508
5.0000.37518.8284.9434.4394.8964.398
5.0000.43821.6704.9434.3324.8934.289
5.0000.50024.4264.9434.2254.8894.179
5.0000.62529.6844.9434.0114.8823.959
5.0000.75034.6044.9433.7964.8753.739
5.0000.87539.1834.9433.5814.8693.519
5.0001.00043.4244.9433.3674.8613.299
5.2500.25013.5705.1924.9055.1524.869
5.2500.31316.7515.1924.7975.1484.759
5.2500.37519.8465.1924.6905.1454.649
5.2500.43822.8575.1924.5835.1424.539
5.2500.50025.7835.1924.4765.1384.430
5.2500.62531.3815.1924.2615.1314.210
5.2500.75036.6395.1924.0475.1243.990
5.2500.87541.5585.1923.8335.1173.770
5.2501.00046.1385.1923.6195.1103.550
5.5000.25014.2495.4255.1715.3855.136
5.5000.31317.5995.4255.0645.3815.026
5.5000.37520.8645.4254.9575.3784.917
5.5000.43824.0445.4254.8505.3784.807
5.5000.50027.1405.4254.7435.3714.697
5.5000.62533.0775.4254.5285.3644.477
5.5000.75038.6755.4254.3145.3574.257
5.5000.87543.9335.4254.1005.3504.038
5.5001.00048.8525.4253.8865.3433.819
6.0000.25015.6065.9225.6745.8825.639
6.0000.37522.8995.9225.4595.8755.419
6.0000.43826.4195.9225.3525.8715.309
6.0000.50029.8545.9225.2455.8685.199
6.0000.62536.4695.9225.0305.8614.979
6.0000.75042.7465.9224.8165.8544.759
6.0000.87548.6835.9224.6025.8474.539
6.0001.00054.2805.9224.4075.8404.340
6.2500.50031.2116.1715.4966.1175.450
6.2500.62538.1666.1715.2826.1065.230
6.2500.75044.7816.1715.0676.1025.011
6.5000.50032.5686.4205.7476.3655.701
6.5000.62539.8626.4205.5336.3585.481
6.5000.75046.8176.4205.3196.3515.261
6.5001.00059.7086.4204.8906.3374.822
6.7500.37525.9536.6696.2136.6216.172
6.7500.50033.9256.6695.9986.6145.952
6.7500.75048.8526.6695.5696.6005.512
6.7501.00062.4226.6695.1416.5865.073
7.0000.50035.2826.9176.2506.8626.203
7.0000.75050.8886.9175.8216.8485.763
7.0001.00065.1366.9175.3926.8345.324
7.5000.37529.0067.4156.9657.3676.924
7.5000.50037.9967.4156.7517.3596.704
7.5000.75054.9597.4156.3227.3466.265
7.5001.00070.5647.4155.8937.3315.825
8.0001.00075.9927.9126.4007.8296.331
9.0000.75067.1728.9077.8348.8377.776
9.0001.00086.8488.9077.4068.8237.336

Application

Aerospace

Cleaning Factories

Food Processing

Food Processing

Oil and Gas

Oil and Gas

Pharmaceutical

Pharmaceutical

Power Plant

Power Plant

Ship Building

Ship Building

Water Systems

Water Systems

Refinery

Refinery