Seamless-Straight

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For the past decade, TRIS has produced seamless precise tubes of diverse quality requirements and steel grades and supplied for semiconductor, automobile, petrochemical, and medical industries. These tubes are mainly of a 1 inch or less outer diameter and made of mainly TP304, TP 316L, 317L, 904L, and Super Duplex steel types.


Our precise tubes are treated in cold drawing-degreasing- BA heat treatment process and meet strict and high quality requirements.


In the area of semiconductor tubes in the world, we have proven how excellent our products are by supplying more than 2,000,000 meters of tubes to major customers like Samsung and Intel annually for the last ten years.

All the products of TRIS satisfy the international standard like ASTM, JIS, EN, and meet requirements of ISO9001, 14001, AD 2000 W0 PED as well.

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Tube Size
Item Size Standard Grade

O.D.

(Outside Diameter)

3.175mm~38.1mm

(1/8"~1.5“)

3.175~10.0(0.125~0.393)

-0, +0.080(±0.0032)

10.1~15.0(0.398~0.591)

±0.13(±0.005)

15.1~20.0(0.594~0.787)

±0.13(±0.005)

20.1~38.1(0.791~1.5)

±0.13(±0.005)

W.T.

(Wall Thickness)

0.25mm~3.0mm

(0.01"~0.12“)

0.25~1.0(0.01~0.039)

±10%

1.01~1.5(0.040~0.059)

±10%

1.51~1.9(0.059~0.075)

±10%

1.91~3.0(0.075~0.12)

±10%

Length

1,000~6,100(4~20ft)

+10, -0/(+0.4, -0)

Straightness

Straight Tubing

2mm/M

Hardness (HRB)

Annealed

75~90

it:mm(inch)

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