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Type: Seamless tube
Production process: cold rolling
Surface: Both inner and outer surface in bright
Material: 304, 304L, 310S, 316, 316L, 316H, 321, 2205, 2507, 904L etc.
Standard: ASTM, JIS, BS, EN, DIN, GB, etc.

Inquiry
Product introduction

Stainless steel precision tube, also known as cold-rolled precision stainless steel pipe, is a kind of seamless pipe with high precision and surface finish.

The characteristics of Stainless steel precision tube:
1. Cold-rolled precision steel pipe has high tolerance dimension accuracy, good inner and outer surface finish, and no oxide layer on the surface.
Tolerance: The tolerance of outer diameter is less than 51 mm, the tolerance of wall thickness and outer diameter is less than (+0.05 mm), the tolerance of outer diameter is more than 51 mm, and the tolerance of wall thickness and outer diameter is less than (+0.08mm).
Roundness: the outer diameter below 42, roundness ≤ 0.8 mm, the outer diameter above 42 mm, the roundness ≤ 1 mm.
Straightness: Outer diameter is less than 32, straightness ≤ 1 m m/m, if outer diameter is more than 32, straightness ≤ 1.2 mm/M.
Stainless steel precision tube, without polishing, the roughness of general external surface: Ra < 0.6 micron, Ra < 0.8 micron of inner hole.
After precision polishing for inner and outer surface of stainless steel precision tube, the surface roughness is Ra < 0.4 micron and Ra < 0.6 micron of inner hole.

2.Precision cold-rolled steel tube has excellent comprehensive performance, can withstand high pressure, cold bending, flattening, no cracking, no wrinkle, can do all kinds of complex deformation and mechanical processing.

Standard size :

ISO DIN 1 DIN 2 IDF GB
φ19.1x1.5 φ28x1.5 φ29x1.5 φ19.1x1.2 φ25x1.6
φ25.4x1.5 φ34x1.5 φ35x1.5 φ25.4x1.2 φ32x1.6
φ31.8x1.5 φ40x1.5 φ41x1.5 φ32x1.2 φ38x1.6
φ38.1x1.5 φ52x1.5 φ53x1.5 φ38.1x1.2 φ45x1.6
φ50.8x1.5 φ70x2 φ70x2 φ50.8x1.2 φ57x1.6
φ63.5x2 φ85x2 φ70x2 φ63.5x2 φ76x2
φ76.1x2 φ104x2 φ70x2 φ76x2 φ89x2
φ101.6x2 φ129x2 φ70x2 φ89x2 φ108x2
φ154x2 φ70x2 φ101.6x2 φ133x2
Remarks:(customized sizes are also accepted)


Chemical composition: 

Grade UNS Chemical Component %
C Mn P S Si Ni Cr Mo N Other 
304 S30400 0.08 2.00  0.045 0.03 1.00  8.0-11.0 18.0-20.0 - - -
304L S30403 0.035 2.00  0.045 0.03 1.00  8.0-13.0 18.0-20.0 - - -
310S S31008 0.08 2.00  0.045 0.03 1.00  19.0-22.0 24.0-26.0 0.75 - -
310H S31009 0.04~0.10 2.00  0.045 0.03 1.00  19.0-22.0 24.0-26.0 - - -
316 S31600 0.08 2.00  0.045 0.03 1.00  11.0-14.0 16.0-18.0 2.0-3.0 - -
316L S31603 0.035 2.00  0.045 0.03 1.00  10.0-14.0 16.0-18.0 2.0-3.0 - -
316H S31609 0.04~0.10 2.00  0.045 0.03 1.00  11.0-14.0 16.0-18.0 2.0-3.0 - -
321 S32100 0.08 2.00  0.045 0.03 1.00  9.0-12.0 17.0-19.0 - 0.1 Ti: 5(C+N)-0.7
321H S32109 0.04~0.10 2.00  0.045 0.03 1.00  9.0-12.0 17.0-19.0 - - Ti: 4(C+N)-0.6
S31803 0.03 2.00 0.03 0.02 1.00 21.0-23.0 4.50-6.50 2.50-3.50 0.08~0.20 -
2205 S32205 0.03 2.00 0.03 0.02 1.00 22.0-23.0 4.50-6.50 3.00-3.50 0.14-0.20 -
2507 S32750 0.03 1.20 0.035 0.02 0.80 24.0-26.0 6.0-8.0 3.0-5.0 0.24~0.32 Cu: 0.50
904L S08904 0.02 2.00 0.045 0.035 1.00 19.0-23.0 23.0-28.0 4.0-5.0 0.10 Cu: 1.0-2.0
Application of Precision Stainless Steel Pipe:
Cold-rolled precision steel tubes are widely used in automobiles, motorcycles, electric vehicles, petrochemical, electric power, ships, aerospace, bearings, pneumatic components, medium and low pressure boilers and other fields.

Packing: In plastic bag and wooden box:

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