Small Diameter bright annealed stainless steel tube 3 / 8 Inch
TP309S / 310S
Material Grade :
American Standard | TP304 , TP304L , TP310S , TP316 , TP316L , TP316Ti , TP321 , TP347
, 904L Etc |
European Standard | 1.4301 , 1.4306 , 1.4845 , 1.4401 , 1.4404 , 1.4571 , 1.4541 ,
1.4550 , 1.4539 Etc |
German Standard | X5CrNi18-10 , X2CrNi19-11 , X12CrNi25-21 , X5CrNi17-12-2 ,
X5CrNi17-12-3 , X2CrNiMo18-14-3 , X6CrNiTi18-10 , X6CrNiTb18-10 Etc |
Corrosion Test | If clients need will be conducted |
Chemical Analysis | Will be tested as per required quality standards |
Destructive / Mechanical Testing | Tensile / Hardness / Flattening |
Eddy Current Testing | Using digital flaw-mark testing System to do test and mark in
surface homogeneities |
Hydrostatic Testing | 100% Hydrostatic Testing carried out according to ASTM-A 450 norms
for checking tube leakage, and biggest pressure we can support
20Mpa/7s . |
Air Under Pressure Test | To check any evidence of air leakage |
Visual Inspection | After passivation, every single length of tubes is subjected to
thorough visual inspection by trained staff for detecting surface
flaws & other imperfections |
Specifications :
DN | NPS(Inch) | D(mm) | SCH5S | SCH10S | SCH40S | STD | SCH40 | SCH80 | XS | SCH80S | SCH160 | XXS |
6 | 1/8 | 10.30 | - | 1.24 | 1.73 | 1.73 | 1.73 | 2.41 | 2.41 | 2.41 | - | - |
8 | 1/4 | 13.70 | - | 1.65 | 2.24 | 2.24 | 2.24 | 3.02 | 3.02 | 3.02 | - | - |
10 | 3/8 | 17.10 | - | 1.65 | 2.31 | 2.31 | 2.31 | 3.20 | 3.20 | 3.20 | - | - |
15 | 1/2 | 21.30 | 1.65 | 2.11 | 2.77 | 2.77 | 2.77 | 3.73 | 3.73 | 3.73 | 4.78 | 7.47 |
20 | 3/4 | 26.70 | 1.65 | 2.11 | 2.87 | 2.87 | 2.87 | 3.91 | 3.91 | 3.91 | 5.56 | 7.82 |
25 | 1 | 33.40 | 1.65 | 2.77 | 3.38 | 3.38 | 3.38 | 4.55 | 4.55 | 4.55 | 6.35 | 9.09 |
32 | 1 1/4 | 42.20 | 1.65 | 2.77 | 3.56 | 3.56 | 3.56 | 4.85 | 4.85 | 4.85 | 6.35 | 9.70 |
40 | 1 1/2 | 48.30 | 1.65 | 2.77 | 3.68 | 3.68 | 3.68 | 5.08 | 5.08 | 5.08 | 7.14 | 10.15 |
50 | 2 | 60.30 | 1.65 | 2.77 | 3.91 | 3.91 | 3.91 | 5.54 | 5.54 | 5.54 | 8.74 | 11.07 |

Where can be used ?
1 . General service industries ( petroleum , food , chemical ,
paper , fertilizer , fabric , aviation and nuclear
2 . Fluid , gas and oil transport
3 . Pressure and heat transmission
4 . Construction and ornament
5 . Boiler heat exchangers
6 . Decorative usage ( road lamp facilities , bridge handrail ,
expressway railing , bus stop , airport and gymnasium ) boiler ,
auto parts , medical equipment , building materials , food industry
MTSCO has been dedicated to producing bright annealed tubes since
2014 , owning complete producing technology and abundant managing
experience . And the raw material such as mother tube , round bar
we use is from Chinese biggest and well-known steel mill : Walsin ,
Yongxing etc . Also we have advanced NDT equipments for the tests
such as Eddy Current test , Ultrasonic test , Hydraulic test and so
on . Welcome you contact us in free ! Stainless steel seamless
bright annealed tube’s final surface is polished and bright
annealed. And the polished grade is includes 180 # , 320 # , 400 #
, 600 # , 800 # . According to standard very strictly , tubes which
produced by us always have correct OD and WT tolerance. And they
are very suitable for chromatography industry.