Hot Sale Welded 304 Stainless Steel Tube with High Quality

What kind of coiled tubing we can produce? stainless steel tube 304

unit:mm

D4 / T3 Bright Annealed Stainless Steel Tubes ASTM A213 ASTM A269 EN10216-5 TC1

Bright annealed stainless steel tubes as per following standard:

ASTM A213 ASTM A269 EN10216-5 TC-1

Tolerance:D4/T3 (±0.5%,±0.1 min)/(±10%,±0.2 min)

NDT Tests:Eddy Current or Hydraulic Test or UT

Heat treatment on tubes: Bright Annealed

Quality Assurance: ISO 9001&PED 97/23/EC certificated with 100% traceability on all instrument tubes and material test reports(EN 10204/3.1B)accompany every shipment upon request.

Application:
Instrument Tubing
Chromatography tubing
Hydraulic Tubing
High Pressure Tubing
Cleaned Tubing
Multi Core Tubing

Why choose bright annealed tube?

1.Superior Surface Finish
The traditional annealing :Open furnace---Oxygen atmosphere---form Scale, tarnish the material,For more than 12m tubes this method is hard to clean inner surface.

A special bright annealing:Closed furnace---Intert atmosphere use noble gases(Nitrogen and argon)Preventing Oxygen to contact with marterial ---Surface finish is clean,bright and precision,which is an excellent starting point for further process,like electro-polishing and mechanical polishing. For more than 12m tubes,this method is much cleaner smoother on both inner and outer surface.

2.Better Mechanical Property

The temperature of furnace can reach more than 1350℃,and the tolerance for setting and real temperature can be controlled whithin +/-2℃,which is impossible for the traditional annealing.

3.Perfect Inspection Method And Inspection Equipment
100%PMI test
100%Hydraulic test
100%Inner cleaned by sponge
100%Dimension test
100%Surface test

Quality of precision drawn tubing is same to precision rolling.

4.More Precision Dimension
Advanced cold drawn technology from Japan and Korean,Making the close dimension controls.

Product pictures:

Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the international standards as well. Ningbo Pipeway Trade Co.,Ltd is our branch company for all internation business service for our company.

Our Production equipments including 16 cold drawing lines and 22 cold rolled machines:

We have full testing equipments for different kinds of testing for steel tubes:

Our products can produced as DIN,ASTM,ASME,EN,JIS,BS,GB,GOST,ISO etc international standard 

Precision steel tubes:DIN2391 st52/A519 4130 4140 1026/EN10305-1 E355+N/EN10305-4 E235+N

Boiler steel tubes:ASTM A192/A179/A210 Gr.A/A213;DIN17175 st35.8/EN10216

Seamless Mechanical tubes: ASTM A519, EN10297-1/EN10210 S355J2H

Wire line Drill Rods:BQ,NQ,HQ,PQ XJY750,XJY850 4130+SR 1541

Oil and Gas line pipes:API 5L Grade B,A106 Gr.B,A53 Gr.B,API 5D

Stainless Steel tubes 304,304L,316,316L

Steel pipes and tube Size range:OD 4-300mm,Wt:0.5-30mm

We have 15 years experience of exporting steel tubes and steel pipes , main exporting to American, Europe, Asian, Australia, Africa .

We have cerficate of ISO9001,TS16949,TUV/PED for different market demand: