Duplex stainless steel pipes are becoming more and more common. Due to its excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion, duplex stainless steel pipe are being offered by all the major stainless steel mills.
|
Specification |
|
| Size | OD: 6.0 ~ 406.4mm; WT: 1 ~ 50mm;
O.D.1/8”-16”;W.T.:SCH 10(S);-SCH XXS Length: as your requirement,11.8M MAX |
| Process | Seamless |
| Grade | S31803, S32205, S32520,S32750,S32760 |
| Standard | ASTM A789, ASTM A790 |
| Surface | Aid Pickling, Polishing(180#, 220#, 240#, 320#, 400#,) |
| Theoretical Weight(kg/m) | Weight/meter = (OD-WT)*WT*0.02507 Both OD and WT in mm. |
Note:
OD is the specified outside diameter.
WT is the specified wall thickness
Chemical Composition
|
UNS |
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
N |
Cu |
Others |
|
S31803 |
0.030 |
2.00 |
0.030 |
0.020 |
1.00 |
4.5-6.5 |
21.0-23.0 |
2.5-3.5 |
0.08-0.20 |
… |
… |
|
S32205 |
0.030 |
2.00 |
0.030 |
0.020 |
1.00 |
4.5-6.5 |
22.0-23.0 |
3.0-3.5 |
0.14-0.20 |
… |
… |
|
S32520 |
0.030 |
1.50 |
0.035 |
0.020 |
0.80 |
5.5-8.0 |
24.0-26.0 |
3.0-5.0 |
0.20-0.356 |
0.5-3.00 |
… |
|
S32750 |
0.030 |
1.20 |
0.035 |
0.020 |
0.80 |
6.0-8.0 |
24.0-26.0 |
3.0-5.0 |
0.24-0.32 |
0.5 |
… |
|
S32760 |
0.05 |
1.00 |
0.030 |
0.010 |
1.00 |
6.0-8.0 |
24.0-26.0 |
3.0-4.0 |
0.20-0.30 |
0.50-1.00 |
W0.50-1.00 |
Note A: Maximum, unless a range or minimum is indicated. Where ellipses(…) appear in this table, there is no minimum and analysis for the element need not to be determined or reported.
Tensile and Hardness
|
UNS Designation |
Tensile Strength, min MPa |
Yield Strength, min MPa |
Elongation in 50mm min, % |
Hardness, Max |
|
|
HBW |
HRC |
||||
|
S31803 |
620 |
450 |
25 |
290 |
30 |
|
S32205 |
655 |
450 |
25 |
290 |
30 |
|
S32520 |
770 |
550 |
25 |
310 |
… |
|
S32750 |
800 |
550 |
15 |
300 |
32 |
|
S32760 |
750 |
550 |
25 |
300 |
… |
Tolerances
|
Group |
Size, Outside Diameter, mm |
Tolerances in Outside Diameter, mm |
Average Wall Tolerance in Wall Thickness, % |
Minimum Wall Tolerances in Wall Thickness, % |
Tolerances in Cut Length, mm |
Thin Wall Tubes |
||
|
Over |
Under |
Over |
Under |
|||||
|
1 |
Up to 12.7, excl |
±0.13 |
±15 |
30 |
0 |
3 |
0 |
… |
|
2 |
12.7 to 38.0, excl |
±0.13 |
±10 |
20 |
0 |
3 |
0 |
Less than 1.6mm specified |
|
3 |
38.1 to 88.9, excl |
±0.25 |
±10 |
20 |
0 |
5 |
0 |
Less than 2.4mm specified |
|
4 |
88.9 to 139.7, excl |
±0.38 |
±10 |
20 |
0 |
5 |
0 |
Less than 3.8mm specified |
|
5 |
139.7 to 203.2, excl |
±0.76 |
±10 |
20 |
0 |
5 |
0 |
Less than 3.8mm specified |
Packing Information
BUNDLE PACKAGE
WOODEN CASE
PLASTIC PACKAGE