ANSI B16.9 ASTM A403 WP321 90Deg LR Elbow DN100 Sch40S
Short Description
Model No.: WP321-90Deg-LR-Elbow-DN100-Sch40S
China Elbow Manufacturer www.pipelinedubai.com offers ANSI B16.9 ASTM A403 WP321 90Deg LR Elbow, DN100, Sch40S.
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Key Specifications / Features
Type: 90Deg LR Elbow
Material: 321
Degree: 90 Degree
Size: 4 inch (DN100)
Standard: ANSI B16.9, THK: Sch40S
Ends: BW
Composition ranges for 321 grade stainless steel
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Mo |
Ni |
N |
Other |
|
|
321 |
min. max |
– 0.08 |
2.00 |
0.75 |
0.045 |
0.030 |
17.0 19.0 |
– |
9.0 12.0 |
0.10 |
Ti=5(C+N) 0.70 |
|
321H |
min. max |
0.04 0.10 |
2.00 |
0.75 |
0.045 |
0.030 |
17.0 19.0 |
– |
9.0 12.0 |
– |
Ti=4(C+N) 0.70 |
|
347 |
min. max |
0.08 |
2.00 |
0.75 |
0.045 |
0.030 |
17.0 19.0 |
– |
9.0 13.0 |
– |
Nb=10(C+N) 1.0 |
Mechanical properties of 321 grade stainless steel
|
Grade |
Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness |
|
|
Rockwell B (HR B) max |
Brinell (HB) max |
||||
|
321 |
515 |
205 |
40 |
95 |
217 |
|
321H |
515 |
205 |
40 |
95 |
217 |
|
347 |
515 |
205 |
40 |
92 |
201 |
|
321H also has a requirement for a grain size of ASTM No 7 or coarser. |
|||||
Physical properties of 321 grade stainless steel in the annealed condition
|
Grade |
Density (kg/m3) |
Elastic Modulus (GPa) |
Mean Coefficient of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C (J/kg.K) |
Electrical Resistivity (nΩ.m) |
|||
|
0-100°C |
0-315°C |
0-538°C |
at 100°C |
at 500°C |
|||||
|
321 |
8027 |
193 |
16.6 |
17.2 |
18.6 |
16.1 |
22.2 |
500 |
720 |
Grade specifications for 321 grade stainless steel
|
Grade |
UNS No |
Old British |
Euronorm |
Swedish SS |
Japanese JIS |
||
|
BS |
En |
No |
Name |
||||
|
321 |
S32100 |
321S31 |
58B, 58C |
1.4541 |
X6CrNiTi18-10 |
2337 |
SUS 321 |
|
321H |
S32109 |
321S51 |
– |
1.4878 |
X10CrNiTi18-10 |
– |
SUS 321H |
|
347 |
S34700 |
347S31 |
58G |
1.4550 |
X6CrNiNb18-10 |
2338 |
SUS 347 |
|
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted. |
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Possible alternative grades to 321 grade stainless steel
|
Grade |
Why it might be chosen instead of 321 |
|
304L |
The requirement is for resistance to intergranular corrosion, not for high temperature strength |
|
3CR12 |
Only mild “high temperature” environment is present… up to about 600°C. |
|
304H |
Only mild “high temperature” environment is present… up to about 800°C. |
|
310 |
The temperature of the operating environment is up to about 1100°C – too high for 321 or 321H. |
|
S30815 (253MA) |
The temperature of the operating environment is up to about 1150°C- too high for 321 or 321H. |
