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Precision micro tubes are seamless or welded thin-wall tubes produced with tight dimensional tolerances and controlled surface quality. Huashang Steel produces tubing with outer diameters as small as 0.2 mm, with tolerance regulation tailored to meet specific technical requirements from commercial users. These tubes are designed for scenarios requiring precise fluid control, thermal transfer, and component integration across multiple industrial fields.
Grades include 304/L/H/LN, 316L/H/LN/Ti, 321/H, 317/L/LN, 347/H, 310S/H, and 309S.
This range covers super austenitic stainless steel grades such as N08904(904L), S31254, and N08367, plus super duplex steel grades including S31803, S32205, S32750, and S32760 for demanding corrosion and strength requirements.
Options include pure nickel (N4, N6), titanium grades (GR1 to GR12), Hastelloy alloys, Inconel alloys, Monel alloys, and Incoloy alloys, for extreme temperature, corrosion, and high-pressure service conditions.
Parameter | Range |
Outside Diameter (OD) | 0.20 mm –10 mm |
Inside Diameter (ID) | 0.05 mm – 6 mm |
Wall Thickness | 0.05 mm – 2.00 mm |
Length | Up to 6000 mm |
Straightness | ≤ 1 mm/m |
Surface Finish | Bright Annealed (BA), Pickled, Polished |
Tolerance | ±0.005 mm to ±0.05 mm |
Ultra fine micro tube options include 0.20 × 0.05 mm, 0.30 × 0.05 mm, 0.50 × 0.10 mm, 0.71 × 0.10 mm, and 1.00 × 0.15 mm. Precision thin wall tube options include 1.50 × 0.20 mm, 2.00 × 0.20 mm, 3.00 × 0.30 mm, 4.00 × 0.50 mm, and 6.00 × 0.50 mm.
Custom dimensions are available based on customer drawings and technical specifications.
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Production follows a standardized 12-step workflow to ensure consistent output across batches: raw material inspection, tube piercing, cold drawing, precision sizing, bright annealing, straightening, cutting, cleaning, surface treatment, dimensional inspection, final testing, and packaging. Each step follows defined process parameters to maintain dimensional stability and surface quality.
All tubes undergo structured inspection to verify compliance with international quality standards.
Routine checks cover dimensional verification (OD, ID, wall thickness, length, straightness), material validation (PMI testing, chemical composition analysis, spectrometer testing), mechanical property testing (tensile test, yield strength test, elongation test, hardness test), surface quality inspection, and non-destructive testing including eddy current test, ultrasonic test, dye penetrant test, hydrostatic pressure test, and air leakage test.
Additional inspection services are available on request, including helium leak test, cleanliness testing, metallographic examination, grain size analysis, and ferrite content testing.
Tolerance control ranging from ±0.005 mm to ±0.05 mm, delivered through cold drawing and precision sizing technology
Minimum wall thickness of 0.05 mm to support thin-wall application requirements
Multiple surface finish options to accommodate ultra-clean application scenarios
Pressure-bearing structure compatible with heat exchanger and fluid transfer systems
Graded corrosion resistance across material options for different service environments
Broad material selection covering stainless steel, nickel alloys, titanium, and duplex stainless steel
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These tubes are used in microtube heat exchangers, printed circuit heat exchangers (PCHE), hydrogen cooling systems, LNG cryogenic equipment, aerospace thermal management systems, and fuel cell systems for thermal transfer and fluid distribution.
They are integrated into medical devices and analytical instruments such as chromatography systems and laboratory equipment, supporting precision fluid delivery requirements.
The tubing serves ultra-clean gas and fluid delivery systems in semiconductor manufacturing, as well as precision fluid control systems across industrial operations.
Our standard precision micro tubes have an outer diameter range of 0.20 mm –10 mm, inner diameter range of 0.05 mm – 6 mm, wall thickness range of 0.05 mm – 2.00 mm, and maximum length of 6000 mm.
We support custom production in austenitic stainless steel, super austenitic stainless steel, super duplex steel, pure nickel, titanium, Hastelloy, Inconel, Monel, and Incoloy alloys, with grade selection based on customer application requirements.
Tolerance levels range from ±0.005 mm to ±0.05 mm, with specific values determined by tube dimensions and material grades.
Yes, custom sizes and specifications are available based on customer-provided drawings and technical requirements.
Huashang Steel serves enterprise customers worldwide with precision micro tube solutions, supporting both standard and custom specifications for diverse industrial use cases. For project-specific requirements, contact our technical team for tailored support.
