welded Stainless steel tube and pipe are widely used in decoration pipe, furniture, oil tube,motor parts,washing machinery and other mechanical parts as well as other industries!The ISO 9001 system ensure the good quality and good surface! With the strength of good quality,competitive price, a large number of stock, good after-sale service, Bozhong metal group has been cooperating with many famous companies such as the Allengheny Ludlim, ThyssenKrupp VDM.
Various types of stainless steel welded tube/pipe
1.)Decoration Tube:
This kind tube is the most common tube and widely used in the daily life like construction,decoration.This tube usually of low technical requirement,only a high requirement about the ot surface like 400 grit,600 grit and mirror finish.
2.)Sanitary Tube/Pipe:
This Tube/Pipe usually used in the food industry,chemicals, food containers,Fluid transports.This Tube requires high quality on both inside and out side surfaces
3.)Motor use Tube/Pipe
This Tube/Pipe used in machinery,motors. Usually have a high requirement about the tolerance,roughness,physical properties..It has a high requirement about the hardness,bendingness..
Standard: AISI, ASTM, DIN, EN, GB and JIS
Materials:
300series:301,302,303,304,304L,309,309s,310,310S,316,316L,316Ti,317L,321,347,
200series:201,202,202cu,204;
400series:409,409L,410,420,430,431,439,440,41,444;
Others:2205,2507,2906,330,660,630,631,17-4ph,17-7 ph, S31803904L,etc
Duplex stainless steel:
(S22053,S25073,S22253,S31803,S32205,S32304;2205,2507)
Special Stainless Steel:
(904l,347,347h,317,317l,316ti,254mo)
Types:
Round Tube
Square Tube
Retangular Tube
Surface:180grit,320 grit,400grit,600grit bright polish, hairline, satin and mirror
Packing: each tube in plastic bag with size label outside, about 500 to 800kg in one bundle with a hanging belt in middle or customer requirement.
Quality Control of square tube :
1. Surface Inspection
2. Outside/Inside Diameter Inspection
3. Thickness/Length Inspection
4. Width Inspection
5. Air pressure
6. Straightness
7. Expanding/Flattening Test
8. Packing Check
9. Marking
Application
