Specifications
Stainless Steel Square Tube Welded Sanitary 304 Square Tube/Pipe Steel Pipe:Â
1.Material:201,202,304,316L,430,etcÂ
2.OD:6mm-950mmÂ
Thickness:0.25-4mmÂ
3.Surface:Mirror,Satin/HL
 Name |
Stainless Steel pipe |
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Standard |
ASTM A554, A249, A269 and A270, A312 |
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Material Grade |
201 ( Ni 1.2%), 202 (Ni 3.5%~4.5%), 301(Ni 5%) 304 (Ni 8%, Cr 18%), 316 (Ni 10%, Cr 18%), 316L (Ni10%~14%), 430 |
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Outer Diameter |
6mm--159mm |
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Thickness |
0.25mm - 3.5mm |
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Length |
6m or as customers' request |
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|
 Tolerance |
a) Outer Diameter: Â +/- 0.2mm |
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b) Thickness: +/- 0.02mm | ||||||
c) Length: +/- 5mm | ||||||
Surface |
180G, 320G, 400G Satin / Hairline 400G, 500G, 600G or 800G Mirror finish |
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Application |
Decoration construction, upholstery, industry instrument |
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Test |
Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT |
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    Chemical Composition of Material |
 Material  Composition |
201 |
202 |
304 |
316 |
430 |
C |
≤0.15 |
≤0.15 |
≤0.08 |
≤0.08 |
≤0.12 |
|
Si |
≤1.00 |
≤1.00 |
≤1.00 |
≤1.00 |
≤1.00 |
|
Mn |
5.5-7.5 |
7.5-10 |
≤2.00 |
≤2.00 |
≤1.00 |
|
P |
≤0.06 |
≤0.06 |
≤0.045 |
≤0.045 |
≤0.040 |
|
S |
≤0.03 |
≤0.03 |
≤0.030 |
≤0.030 |
≤0.030 |
|
Cr |
16-18 |
17-19 |
18-20 |
16-18 |
16-18 |
|
N |
3.5-5.5 |
4-6 |
8-10.5 |
10-14 |
 |
|
Mo |
 |
 |
 |
2.0-3.0 |
 |
|
|
 Mechanical Property |
Material Item    |
201 |
202 |
304 |
316 |
|
Tensile Strength |
≥535 |
≥520 |
≥520 |
≥520 |
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Yield Strength |
≥245 |
≥205 |
≥205 |
≥205 |
||
Extension |
≥30% |
≥30% |
≥35% |
≥35% |
||
Hardness (HV) |
<253 |
<253 |
<200 |
<200 |
||
Payment |
Payment by T/T, 30% as advance payment and 70% balance pay before shipping. |
|
 Delivery time |
A.7 days if this goods is stock goods. B.20 days if this goods will be produced after order |
Validity |
Valid time is 3 days for price usually. |
Pictures of stainless steel square pipe
Our advantage process
(1).Internal Leveling
Leveling within is the use of specialized equipment in the flattened seam weld on a pressurizedÂ
multipass rolling,eventually leveling welding, inner and outer surface smooth weld withoutÂ
delamination.
(2).Annealing Oline
stainless steel tubing from 1040-1080degree celsius and annealing foe processing gas shield to
  eliminate the pipe stress, reduce the hardness of the pipe, the surface brightness enhancementÂ
 purposes.
(3).Quasi-plasma Welding
It can be different grits, polished inside and outside different surface treatments.
(4).Polished Inside and OutsideÂ
It can be different grits, polished inside and outside different surface treatments.
packing and shipping
Packing detail:Â in Bundles or Wooden Cases
Delivery detail:Â .7-30days,In fact the delivery time will depend on specific sizes and quantity.
Product category
Stainless Steel Seamless Pipes or Tubes
Seamless Stainless Steel Heat Ex-changer U-Tubes
Duplex Stainless Steel Seamless Pipes or Tubes
Nickle Alloy Seamless Pipes or Tubes
Nickel Alloy Seamless U-Tubes
Stainless Steel Welding Pipes or Tubes
comany information
Stainless steel pipes or tubes is more than just one of our many products; it is the heart of our business. Since 2009, We has consistently provided quality tubular products and top tier customer service to the industrial marketplace. We service a wide variety of industries including oil and gas, petrochemical, power generation, semiconductor, food and beverage, marine, automotive.
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Our technical personnel is strong and the sales team is high-quality. In the global market, Our products have been exported to America, Australia, Singapore,Malaysia, Israel,  Canada, South Africa, Italy, South Korea, and other places in the world.Â
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we have advanced, scientific management idea. "Good faith as the foundation, customer foremost" is our consistent business tenet. "Quality first, service foremost" is our principle. "Full varieties" is our market weapon. "The international first-class" is our forever goal.
FAQ
Q:Are you a factory ?
A:We are a factory setted up more than 10years and export more than 6 years,
you also can see my company is manufacturers on Website.
Q:When is the delivery date?
A:15-30days in general
Q:Could you send me a quotation ?
A:Sure, before the exactly quotation we need information followed:
1.Product material grandÂ
2.Quantity
3.The size range of your product
4.Your requirement,such as deal with the surface or any other requirement
5.Best,Please show us your product picture
Q:Can you send me a sample?
A:yes,and the sample also is free
Q:How about the after service ?
A:Free of charge for one year warranty , if have any problem,when our technicianer go there to check,after confirm it,we will change it at once
Q:What about the shipping package?
A:Standard packing or as customer requirements
Contact Information
Warmly welcome to contact me in 24 hours ,information as follows:
Â
Longquan Hongda Copper And Aluminum Casting Co., Ltd. , http://www.qd-diecasting.com