321 Stainless Steel Pipe
This is an austenitic stainless steel that is chemically similar to 304 but is stabilized with Titanium. The addition of Titanium (at least five times the carbon content) ties up the carbon, preventing the formation of chromium carbides when the material is exposed to the sensitization temperature range (427°C to 816°C / 800°F to 1500°F). This stabilization makes the material highly resistant to intergranular corrosion after welding, without requiring post-weld annealing. It also offers higher creep and stress rupture properties compared to 304. 321 pipe is essential for applications requiring both the general corrosion resistance of 304 and superior resistance to intergranular attack and stress corrosion cracking at high service temperatures. Primary uses include aircraft piston engine exhaust stacks and manifolds, thermal oxidizers, expansion joints, refinery equipment, high-temperature chemical process equipment, and steam boiler tubing.
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- Commodity name: 321 Stainless Steel Pipe
This is an austenitic stainless steel that is chemically similar to 304 but is stabilized with Titanium. The addition of Titanium (at least five times the carbon content) ties up the carbon, preventing the formation of chromium carbides when the material is exposed to the sensitization temperature range (427°C to 816°C / 800°F to 1500°F). This stabilization makes the material highly resistant to intergranular corrosion after welding, without requiring post-weld annealing. It also offers higher creep and stress rupture properties compared to 304. 321 pipe is essential for applications requiring both the general corrosion resistance of 304 and superior resistance to intergranular attack and stress corrosion cracking at high service temperatures. Primary uses include aircraft piston engine exhaust stacks and manifolds, thermal oxidizers, expansion joints, refinery equipment, high-temperature chemical process equipment, and steam boiler tubing.
321 Stainless Steel Pipe Description
Applications
Aircraft Piston Engine Manifolds Thermal Oxidizers Refinery Equipment High-Temperature Chemical Processes Boiler Casings Jet Engine Parts Welding Equipment Expansion Joints Superheaters Petroleum Refining Equipment Product Parameters
Product Name
321 Stainless Steel Pipe
Type
Steel Pipe
Outer diameter
Round Tube
4mm-200mm
Square Tube
10*10mm-100*100mm
Rectangular Tube
10*20mm-50*100mm
Wall Thickness
0.6mm-6.0mm
Length
1-6 meters, Length can be customized
Standard
ASTM, AISI, JIS, GB, DIN, EN, etc.
Surface
Black, Bright Polished, Rough Turning, Matt Surface Treatment, No. 4. BA, etc.
Scope of Application
Common 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.
Certificate
ISO, SGS, BV, etc.
Production Technology
Hot Rolling, Cold Rolling
Edge Processing
Edging, Trimming
Approximate grade comparison table
UNS GB JIS DIN EN GOST 321 07Cr18Ni11Ti / S32100 SUS321 S32100 X6CrNiTi18-10 1.4541 (X6CrNiTi18-10) Chemical Composition
C
Si
Mn
Cr
Ni
S
P
≤ 0.08
≤ 0.75
≤ 2.0
17.0～19.0
9.0～12.0
≤ 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)
7.92
193
16.6
16.0
72
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321 Stainless Steel Pipe - Stock Warehouse
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321 Stainless Steel Pipe - Product Inspection
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321 Stainless Steel Pipe - Product Measurement
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321 Stainless Steel Pipe- Product Packaging
Taigang Yilian
Your reliable steel supplier
Taigang Yilian has 10+ warehouses with ready stock. The annual supply capacity is approximately 10 million tons. It has 10 years of experience in large-scale project supply. The customer reorder rate reaches 86%. We ensure quality and quantity, provide material certificates, and will refund if the products are not qualified, so please be assured the purchase.
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