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Help CenterWholesale SS Stainless Pipes S32705 Duplex Stainless Steel Tube
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Wholesale SS Stainless Pipes S32705 Duplex Stainless Steel Tube
The s32705 duplex stainless steel tube has good welding performance. Compared with ferritic stainless steel and austenitic stainless steel, it is not like the welding heat affected zone of ferritic stainless steel, and the plastic toughness is greatly reduced due to severe grain coarsening. Nor is it sensitive to hot cracking of welds like austenitic stainless steel. Due to its special advantages, duplex stainless steel is widely used in petrochemical equipment, seawater and wastewater treatment equipment, oil and gas pipelines, papermaking machinery and other industrial fields. In recent years, it has also been studied in the field of bridge load-bearing structures prospects.
Quick Details
Name |
S32705 duplex stainless steel tube |
Standard |
ASTM A554, A249, A269 and A270, A312 |
Material Grade |
201 ( Ni 0.8%), 202 (Ni 3.5%~4.5%), 301(Ni 5%) 304 (Ni 8%, Cr 18%), 316 (Ni 10%, Cr 18%), 316L (Ni10%~14%), |
Outer Diameter |
6mm--159mm |
Thickness |
0.3mm - 3.0mm |
Length |
6m or as customers' request |
|
Tolerance |
a) Outer Diameter: +/- 0.2mm |
b) Thickness: +/- 0.02mm |
|
c) Length: +/- 5mm |
|
Surface |
180G, 320G, 400G Satin / Hairline 400G, 500G, 600G or 800G Mirror finish |
Application |
Decoration construction, upholstery, industry instrument |
Test |
Squash test, extended test, water pressure test, crystal rot test, heat treatment, NDT |
Chemical Composition
Grade |
C max |
Si max |
Mn max |
P max |
S max |
Cr |
Ni |
Mo |
N |
Cu |
S32750 |
0.030 |
0.8 |
1.2 |
0.030 |
0.015 |
24.0-26.0 |
6.0-8.0 |
3.0-5.0 |
0.24-0.32 |
0.5max |
S31803 |
0.030 |
1.0 |
2.0 |
0.030 |
0.020 |
21.0-23.0 |
4.50-6.50 |
2.50-3.50 |
0.08-0.20 |
|
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 |
||
Yield Strength |
≥245 |
≥205 |
≥205 |
≥205 |
||
Extension |
≥30% |
≥30% |
≥35% |
≥35% |
||
Hardness (HV) |
Production Process
Raw material→Slitting→Molding→Welding→Cooling→Automatic cutting→Automatic polishing→Inspection→Packing→Loading
Application
The S32705 duplex stainless steel tube is a hollow circular steel strip, which are widely used in petroleum, chemical, medical, food, light industry, machinery, instruments and other industrial pipelines and mechanical components. In addition, the bending, torsional strength is the same, the weight is light, so it is widely used in the manufacture of machinery parts and engineering structures are also used. For the production of a variety of conventional weapons, artillery barrel.
Packing & Shipping
Packing Concrete Steps:
First, pipes covered with wooden plate for protection in transportation.
Second, All pipes will be loaded in strong wooden packages.
Third, Every cartons loaded with good shoring and strengthening.
Fourth, Take container loading pictures and seal the container.
Finial, Transportation speed is quick. And keep customer each step informed.
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