Capillary tube

Q: What are the common execution standards?

For stainless steel: ASTM A312/A269/A789, EN 10216, GB/T 14976 ; For alloy steel: ASTM B163( ASME SB163) ,ASTM B165(ASME SB165), ASTM B167(ASME SB167), ASTMB444 (ASME SB444) EN 10216, GB/T 8163 .

Q: What quality certificates can you provide?

We can provide MTC (Mill Test Certificate EN 10204 3.1/3.2), Chemical Composition Report, Mechanical Property Report, Non-destructive Testing (UT/ET/RT), Hydro-static Test, ISO 9001, PED, CE .

Q: What’s the difference between seamless pipe and welded pipe?

Seamless pipe has no welding seam, featuring higher pressure bearing capacity, stronger corrosion resistance and higher dimensional accuracy , which is suitable for high-pressure/high-temperature/corrosive working conditions (such as petroleum, chemical industry, boiler). Welded pipe has a welding seam with lower cost, suitable for low-pressure fluid transmission.

Q: Do you support third-party inspection?

Yes, we support third-party inspection by SGS, BV, TUV, Intertek etc., and whole-process supervision of production is available.

The wall thickness of capillary tubes may range from 0.1mm to 3.0mm.

Stainless steel capillary tubes have excellent corrosion resistance and mechanical strength, and are suitable for use in the chemical, food, pharmaceutical and other industries.

What are the common execution standards?3132778360@qq.com2026-06-14T12:43:50+00:00

What are the common execution standards?

For stainless steel: ASTM A312/A269/A789, EN 10216, GB/T 14976; For alloy steel: ASTM B163( ASME SB163) ,ASTM B165(ASME SB165), ASTM B167(ASME SB167), ASTMB444 (ASME SB444)EN 10216, GB/T 8163.

What quality certificates can you provide?3132778360@qq.com2026-06-14T12:45:08+00:00

What quality certificates can you provide?

We can provide MTC (Mill Test Certificate EN 10204 3.1/3.2), Chemical Composition Report, Mechanical Property Report, Non-destructive Testing (UT/ET/RT), Hydro-static Test, ISO 9001, PED, CE.

What’s the difference between seamless pipe and welded pipe?3132778360@qq.com2026-06-14T12:43:05+00:00

What’s the difference between seamless pipe and welded pipe?

Seamless pipe has no welding seam, featuring higher pressure bearing capacity, stronger corrosion resistance and higher dimensional accuracy, which is suitable for high-pressure/high-temperature/corrosive working conditions (such as petroleum, chemical industry, boiler). Welded pipe has a welding seam with lower cost, suitable for low-pressure fluid transmission.

What materials and grades do your seamless pipes cover?3132778360@qq.com2026-06-14T12:40:45+00:00

What materials and grades do your seamless pipes cover?

Answer:

stainless steel : 304/L,316/L,347H,316Ti,317/L,253Ma,904L,

Duplex Steel: S31254(254SMo）S31803;S32205;S32750;S32760

Alloy steel:

Monel400/K500;

Inconel600/601/625/718/725/617/740;

HastelloyalloyC22/C276/C2000/B/B2/B3/X/230/G2/G3/G30/G35; Incoloy800/H/HT/8028/825/8330/840/925/926/8120;

Ni200;Ni201;Alloy20;

Customization according to ASTM/EN/JIS/GB standards is available.

Do you support third-party inspection?3132778360@qq.com2026-06-14T12:45:46+00:00

Do you support third-party inspection?

Yes, we support third-party inspection by SGS, BV, TUV, Intertek etc., and whole-process supervision of production is available.