321 Stainless Steel Pipe Description

321 stainless steel pipe has good processing and welding properties, making cutting, bending, welding and other processing operations easy to perform. Besides, it has superior mechanical properties such as tensile strength, flexural strength and elongation, and can meet the requirements of use in various environments. Because 321 stainless steel pipes have excellent corrosion resistance and high temperature performance, they are commonly seen in petroleum, chemical industry, aviation, aerospace. Since the production process of petroleum and chemical industries involves a large amount of corrosive media such as acids, alkalis, and salts, 321 stainless steel pipes can effectively cope with the corrosion of these media and ensure the stable operation of the equipment. 321 stainless steel pipe has become one of the important structural materials in the aviation and aerospace fields.


Product Parameters

Product Name321 Stainless Steel Pipe
TypeSteel Pipe
Outer diameterRound Tube4mm-200mm
Square Tube10*10mm-100*100mm
Rectangular Tube10*20mm-50*100mm
Wall Thickness0.6mm-6.0mm
Length1-6 meters, Length can be customized
StandardASTM, AISI, JIS, GB, DIN, EN, etc.
SurfaceBlack, Bright Polished, Rough Turning, Matt Surface Treatment, No. 4. BA, etc.
Scope of ApplicationCommon applications for stainless steel pipes include food processing,Textile operations, Breweries, Water treatment plants, Oil and gas processing,Fertilizers and pesticides, Chemical applications, Construction, Pharmaceuticals, Auto parts, etc.
CertificateISO, SGS, BV, etc.
Production TechnologyHot Rolling, Cold Rolling
Edge ProcessingEdging, Trimming

 

Chemical Composition

CSiMnCrNiSP
≤ 0.08≤ 0.75≤ 2.017.0~19.09.0~12.0≤ 0.03≤ 0.045

 

Mechanical Properties

Tensile Strength Kb (MPa)Yield Strength σ0.2 (MPa)Elongation D5 (%)Hardness
≥520≥205≥ 40≤ 187HB;≤ 90HRB;≤ 200HV

 

Physical Performance

Density(g/cm³)Modulus of Elasticity(Gpa)Coefficient of Thermal Expansion(10-6/°C)Coefficient of Thermal Conductivity(W/m*K)Resistivity(ΜΩ. cm)
7.9219316.616.072

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FAQ

Always ready to help you solve problems

1. What's your payment terms?

A: Payments 30%TT deposit and 70% TT before delivery or Negotiated payment method. We will show you the photos of products and package before you pay the balance.


2. Can you accept customize?

A: Yes. It can be customized as per the customers‘ request.


3. How about the MOQ? If my first order qty is small, will you accept?

A:We would like to do our best to support your trial order qty so even 1 piece or 1kg is okay to start cooperation; because we have confidence to move on second order with your esteemed company.


4.How to ensure the quality?

A:Mill Test Certificate is supplied with shipment.lf needed a Third Party Inspection is acceptable or SGS.


5.How can I get your quotation as soon as possible?

A:The email will be checked within 24 hours,meanwhile the Wechat and WhatsApp will be online in 24 hours.Please send us your requirement and order information,specification(Steel grade,size,quantity,destination port),we will workout a best price soon.

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