321 Stainless Steel Pipe

Standards:

Equivalent material of 321 austenitic stainless steel pipe:

• GB: 06Cr18Ni11Ti / 0Cr18Ni10Ti

• ASTM: S32100 / 321

• JIS: SUS321

• ISO: X6CrNiTi18-10

• EN: X6CrNiTi18-10 / 1.4541

Properties:

Chemical composition of austenitic 321 steel pipe:

• C: ≤0.08

• Si: ≤0.75

• Mn: ≤2.00

• P: ≤0.045

• S: ≤0.030

• Ni: 9.00~12.00

• Cr:17.00~19.00

• N: ≤0.10

• Ti: ≥5XC

Mechanical properties of 321 steel pipe:

• Yield Strength R_P0.2/MPa: ≥205

• Tensile Strength R_m/MPa: ≥515

• Elongation after break A/%: ≥40

• Hardness value: HBW≤217；HRB≤95；HV≤220

Physical properties of ss 321 seamless pipe:

• Density/（kg/dm³）20℃：8.03

• Melting Range/℃：1398-1427

• Specific Heat[kJ/(kg•K)]0℃~100℃：0.50

• Thermal Conductivity/[W/(m•K)]：100℃:16.3；500℃:22.2

• Coefficient of Thermal Expansion/(10^-6/K)：0℃~100℃:16.6；0℃~500℃:18.6

• Electrical Resistivity/(Ω•mm²/m)20℃：0.72

• Modulus of Elasticity(kN/mm²)20℃：193

• Magnetic: No

Application:

Austenitic 321 steel pipe is a derivative of 304 stainless steel, and there is not much difference in corrosion resistance.However, under the heat-resistant working conditions of 500-600 degrees Celsius, 321 stainless steel pipes are mostly used.
It is because 321 austenitic stainless steel pipe has titanium as a stabilizing element, which effectively controls the formation of chromium carbide.
At the same time, 321 steel pipe is also a heat-strength steel, which makes it have better resistance to intergranular corrosion and high-temperature strength, so it can be used to manufacture linings and pipelines for wear-resistant acid containers and wear-resistant equipment.
 

Application range of ss 321 seamless pipe:

• Petroleum waste gas combustion pipeline

• Engine exhaust pipe

• Boiler shell, heat exchanger, heating furnace parts

• Silencer parts for diesel engines

• Boiler pressure vessel

• Chemical transport vehicle

• Expansion joint

• Spiral welded pipes for furnace pipes and dryers

FAQ:

Q:Can you send samples?
A:Sample can be for free,freight cost collect. 
Q:What product information do I need to provide? 
A:Steel grade/thickness/width/quantity,these will decide the price.
Q:About product prices? 
A:Prices vary from period to period due to cyclical changes in the price of raw materials.
Q:What are the certifications for your products? 
A:We have ISO 9001,CE,SGS,BV and other certifications.
Q:How about the delivery time? 
A:Regularly the delivery time around 10-15 days,customized one will inform the delivery time ahead.
Q:Does the product have quality inspection before loading? 
A:All the products are strictly tested before packaging,also can inspect by third party inspection.
Q:How to pack the products?
A:Standard export package with waterproof film and wooden pallet.It can effectively protect products from corrosion.