Austenitic Stainless Steel Pipe

Place of Origin:	Zhejiang

Company Profile

Wenzhou Zhongyuan Steel Industrial Co.,Ltd

Location:	Wenzhou, Zhejiang, China (Mainland)
Business Type:	Manufacturer
Main Products:	Seamless Stainless Steel Pipe, Welded Stainless Steel Pipe, Food Grade Stainless Steel Tubing

Product Detail

Model No.:	304, 304L, 316L etc.

Product Description

ASTM A249 304 304L 316L Welded Stainless Steel Heat Exchanger Tube

Quick Detail:

Size Random: 6mm to 219mm
Thickness Random: 0.5mm to 8.0 mm
Thicnness Tolerance: +/- 002mm
Length Random: 1000mm, 2000mm, 6000mm or as required
Surface Finish: 2B Finish, BA Finish, No.1 Finish etc.
Tube Standard: ASTM A249
304 Nickel Content: Above 8%
316L Nickel Content: Above 10%
321 Nickel Content: Above 9%

Specifications

Grade	200Series And 300 Series
Thickness	0.5mm-8mm or according to customer's required
Length	Nomal is 6/5.8m,or according to customer's demand
Size	Insider Diamter: Mini 3.2mm Outsider Diameter: Max 304.8mm
Surface	No. 1 \| 2B \| BA \| Bright \| Mirror \| HL etc.
Packing	Every tube is sleeved in plastic bag individually,and then several tube are packed by weaving bag,which is seaworthy.Or 50kg/bundle,500kg/bundle.We can pack as clients' requirement.
Thickness tolerance	±0.02mm
Test	Squash test,extended test,water pressure test,heat treatment,NDT
Technique	Welded
Certification	ISO,SGS,CQC,etc.
Sample	Available

Surface Finish

Steel is first rolled to the wanted size and thickness and then annealed to change the properties of the final material. Any oxidation that forms on the surface is removed by pickling, and a passivisaion layer is created on the surface. A final finish can then be applied to achieve the desired aesthetic.

The surface of our round welded stainless steel heat exchanger tube includes:
mirror polishing/stain/customized

Surface Finish	Definition	Application
2B	Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster.	Medical equipment, Food industry, Construction material, Kitchen utensils.
BA	Those processed with bright heat treatment after cold rolling.	Kitchen utensils, Electric equipment, Building construction.
NO.3	Those finished by polishing with No.100 to No.120 abrasives specified in JIS R6001.	Kitchen utensils, Building construction.
NO.4	Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001.	Kitchen utensils, Building construction, Medical equipment.
HL	Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size.	Building Construction.
NO.1	The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling.	Chemical tank, pipe.