What is High Temperature 321H Stainless Steel ?
Stainless Steel 321 is Ni-Cr-Ti austenitic stainless steel, its performance is very similar to 321, but because of the addition of titanium metal, so that it has better grain boundary corrosion resistance and high temperature strength. Due to the addition of titanium metal, it effectively controls the formation of chromium carbide, which is widely used in petrochemical, electric power, bridge and automobile industries.
High Temperature Equivalent Materials of 321H Stainless Steel :
|
Grade |
UNS
No
|
Japanese |
British |
DIN |
|
|
JIS |
BS |
No |
Name |
||
|
304H |
S30409 |
- |
- |
1.4948 |
X6CrNi18-10 |
|
321 |
S32100 |
SUS 321 |
321S31 |
1.4541 |
X6CrNiTi18-10 |
321H Stainless Steel Chemical Compositions Analysis:
Weight % (all values are maximum unless a range is otherwise indicated)
|
Grade |
C |
Mn |
Si |
P |
S |
Cr |
Ni |
N |
Other |
|
321H |
0.04-0.10 |
2.00 |
1.00 |
0.045 |
0.030 |
17.0-19.0 |
9.0-12.0 |
0.10 |
4x(C+N)min,
0.70 max Ti
|
|
321 |
0.08 |
2.00 |
1.00 |
0.045 |
0.030 |
17.0-19.0 |
9.0-12.0 |
0.10 |
5x(C+N)min,
0.70 max Ti
|
High Temperature 321H Stainless Steel Pipe & Tube Description:
|
Out Diameter(OD): |
NPS 1/8"-3/4”-3”-6”-12”-20”-40”-80", DN6--DN200--DN500-DN2000, 4mm-21.3-48.3-168.3-355.6-508-762-2032mm, 0.375", 0.5", 1", 1.25". |
|
Wall Thickness(W.T.): |
0.7mm-50mm, Sch5S, SCH10S, SCH20, SCH40, Sch80, Sch XXS, 0.035”, 0.065”, 0.083”, 0.89mm, 1.2mm, 1.65mm, BWG, SWG. |
|
Length(L): |
Fixed 6 meters, or other Length as Specified. |
|
End: |
Plain End, Bevel End. |
|
Delivery Condition: |
Annealed and Pickled, Bright Annealed, Polished(400#,600#), Hairline. |
|
Inspection: |
100% PMI, Hydrostatic Test, Eddy Current, Ultrasonic, X-Ray, Penetrant Test. |
|
Mechanical Test: |
Tension Test, Flattening Test, Flaring Test, Hardness Test, Impact Test. |
|
Tolerance: |
According to the Production Standard. |
|
Packing: |
By Bundles, Plywood Cases. |
|
Marking: |
YASE PIPELINE, Material Grade, Standard, Specification, Heat No., Lot No. |
|
Mill Test Certificate: |
According to EN 10204 3.2 |
|
Production Time: |
2-30 Days, or up to the quantity. |
|
Shipping: |
By Sea, By Air, By Express. |
|
MOQ: |
100KGS. |
|
Sample: |
Free samples but freight charge paid by customer. |
|
Customized: |
Available. |
YASE PIPELINE Manufacturing 321H Stainless Steel Products:
321H Stainless Steel Boiler Tube
321H Stainless Steel Furnace Tube
321H Stainless Steel High Temperature Tube
321H Stainless Steel Tubes & Pipes
321H Stainless Steel Seamless Pipe & Tubes
321H Stainless Steel Welded Pipe & Tubes
321H ERW/EFW Stainless Steel Pipe
321H Cold Drawing Seamless Stainless Steel Pipe
321H Cold Rolling Seamless Stainless Steel Pipe
321H Stainless Steel Precision Tube
321H Stainless Steel Sanitary Tube
321H Stainless Steel Condenser Tube
321H Stainless Steel Heat Exchanger Tube
321H Large Diameter Stainless Steel Pipe
321H Heavy Wall thickness Stainless Pipe
High Temperature 321H Stainless Steel Mechanical Properties:
Typical Values at 68°F (20℃)
|
Grade |
Tensile Strength (MPa) min |
Yield Strength (MPa) min |
Hardness Max |
|
|
Rockwell (HR B) |
Brinell (HB) |
|||
|
304H |
515 |
205 |
92 |
201 |
|
321 |
515 |
205 |
95 |
217 |
High Temperature 321 Stainless Steel Physical Properties:
|
Grade |
Density kg/m3 |
Elastic Modulus
(a) GPa
|
Mean Coefficient of
Thermal Expansion (b)
|
Thermal
Conductivity
|
Specific Heat
0-100°C
J/kg.K
|
Elect. Resis- tivity nΩ.m |
|||
|
0-100°C
μm/m/°C
|
0-315°C
μm/m/°C
|
0-538°C
μm/m/°C
|
at 100°C
W/m.K
|
at 500°C
W/m.K
|
|||||
|
321H |
8000 |
193 |
16.6 |
17.2 |
18.6 |
16.1 |
22.2 |
500 |
720 |
|
321 |
8000 |
193 |
16.6 |
17.2 |
18.6 |
16.1 |
22.2 |
500 |
720 |
High Temperature 321H Stainless Steel Good For:
321H is a titanium stabilized austenitic stainless steel with good overall corrosion resistance. It has excellent resistance to intergranular corrosion when exposed to carbon carbide precipitation at temperatures ranging from 800-1500°F (427-816°C). This alloy resists oxidation to 1500°F (816°C) and has higher creep and stress rupture properties than alloys 304 and 304L. It also has good low temperature toughness.
Alloy 321H (UNS S 32109) stainless steel plate is the higher carbon (0.04 - 0.10) version of the alloy. It was developed for enhanced creep resistance and for higher strength at temperatures above 1000oF (537°C). In most instances, the carbon content of the plate enables dual certification.
High Temperature 321 Stainless Steel Pipe Dimension Chart :
|
Nominal
Pipe Size
|
Outside Diameter (mm) |
Nominal Wall Thickness Schedule (mm) |
|||||||||
|
NPS |
DN |
OD |
SCH
5s
|
SCH
l0s
|
SCH
40s
|
STD |
SCH 40 |
SCH
80s
|
SCH XS |
SCH 80 |
SCH XS |
|
1/8 |
6 |
10.3 |
- |
1.24 |
1.73 |
1.73 |
1.73 |
2.41 |
2.41 |
2.41 |
2.41 |
|
1/4 |
8 |
13.7 |
- |
1.65 |
2.24 |
2.24 |
2.24 |
3.02 |
3.02 |
3.02 |
3.02 |
|
3/8 |
10 |
17.1 |
- |
1.65 |
2.31 |
2,31 |
2.31 |
3.2 |
3.2 |
3.2 |
3.2 |
|
1/2 |
15 |
21.3 |
1.65 |
2.11 |
2.77 |
2.77 |
2.77 |
3.73 |
3.73 |
3.73 |
3.73 |
|
3/4 |
20 |
26.7 |
1.65 |
2.11 |
2.87 |
2.87 |
2.87 |
3.91 |
3.91 |
3.91 |
3.91 |
|
1 |
25 |
33.4 |
1.65 |
2.77 |
3.38 |
3.38 |
3.38 |
4.55 |
4.55 |
4.55 |
4.55 |
|
1 1/4 |
32 |
42.2 |
1.65 |
2.77 |
3.56 |
3.56 |
3,56 |
4.85 |
4.85 |
4.85 |
4.85 |
|
1 1/2 |
40 |
48.3 |
1.65 |
2.77 |
3.68 |
3.68 |
3.68 |
5.08 |
5.08 |
5.08 |
5.08 |
|
2 |
50 |
60.3 |
1.65 |
2.77 |
3.91 |
3.91 |
3.91 |
5.54 |
5.54 |
5.54 |
5.54 |
|
2 1/2 |
65 |
73 |
2.11 |
3.05 |
5.16 |
5.16 |
5.16 |
7.01 |
7.01 |
7.01 |
7.01 |
|
3 |
80 |
88.9 |
2.11 |
3.05 |
5.49 |
5.49 |
5.49 |
7.62 |
7.62 |
7.62 |
7.62 |
|
3 1/2 |
90 |
101.6 |
2.11 |
3.05 |
5.74 |
5.74 |
5.74 |
8.08 |
8.08 |
8.08 |
8.08 |
|
4 |
100 |
114.3 |
2.11 |
3.05 |
6.02 |
6.02 |
6.02 |
8.56 |
8.56 |
8.56 |
8.56 |
|
5 |
125 |
141.3 |
2.77 |
3.4 |
6.55 |
6.55 |
6.55 |
9.53 |
9,53 |
9.53 |
9,53 |
|
6 |
150 |
168.3 |
2.77 |
3.4 |
7.11 |
7.11 |
7.11 |
10.97 |
10.97 |
10.97 |
10.97 |
|
8 |
200 |
219.1 |
2.77 |
3.76 |
8.18 |
8.18 |
8.18 |
12.7 |
12.7 |
12.7 |
12.7 |
|
10 |
250 |
273.1 |
3.4 |
4.19 |
9.27 |
9.27 |
9.27 |
12.7 |
12.7 |
15.09 |
12.7 |
|
12 |
300 |
323.9 |
3.96 |
4.57 |
9.53 |
9.53 |
10.31 |
12.7 |
12.7 |
17.48 |
12.7 |
|
14 |
350 |
355.6 |
3.96 |
4.78 |
- |
9.53 |
11.13 |
- |
12.7 |
19.05 |
12.7 |
|
16 |
400 |
406.4 |
4.19 |
4.78 |
- |
9.53 |
12.7 |
- |
12.7 |
21.44 |
12.7 |
|
18 |
450 |
457.2 |
4.19 |
4.78 |
- |
9.53 |
14.27 |
- |
12.7 |
23.83 |
12.7 |
|
20 |
500 |
508 |
4.78 |
5.54 |
- |
9.53 |
15.09 |
- |
12.7 |
26.19 |
12.7 |
High Temperature 321H Stainless Steel Tube Dimension Chart :
|
Outside Diameter |
Birmingham Wire Gauge (BWG) |
|||||||
|
20 |
18 |
16 |
15 |
14 |
13 |
|||
|
Inch |
Mm |
|
|
|
|
|
|
|
|
(0.889 Mm) |
(1.245 Mm) |
(1.651 Mm) |
(1.829 Mm) |
(2.108 Mm) |
(2.413 Mm) |
|||
|
Weight, Kg/M (Average Wall ) |
||||||||
|
1/4 |
0.25 |
6.35 |
0.12 |
0.16 |
0.19 |
– |
– |
– |
|
1/3 |
0.313 |
7.95 |
0.15 |
0.21 |
0.25 |
0.28 |
– |
– |
|
3/8 |
0.375 |
9.525 |
0.19 |
0.25 |
0.31 |
0.34 |
0.39 |
– |
|
1/2 |
0.5 |
12.7 |
0.25 |
0.34 |
0.45 |
0.49 |
0.55 |
0.61 |
|
5/8 |
0.625 |
15.875 |
0.33 |
0.45 |
0.58 |
0.64 |
0.71 |
0.8 |
|
3/4 |
0.75 |
19.05 |
0.4 |
0.55 |
0.72 |
0.77 |
0.88 |
0.98 |
|
7/8 |
0.875 |
22.225 |
0.46 |
0.64 |
0.83 |
0.92 |
1.04 |
1.18 |
|
1 |
1 |
25.4 |
0.54 |
0.74 |
0.97 |
1.06 |
1.21 |
1.37 |
|
1 1/8 |
1.125 |
28.575 |
0.61 |
0.83 |
1.1 |
1.21 |
1.37 |
1.56 |
|
1 1/4 |
1.25 |
31.75 |
0.68 |
0.94 |
1.23 |
1.35 |
1.53 |
1.76 |
|
1 3/8 |
1.375 |
34.925 |
0.74 |
1.03 |
1.35 |
1.49 |
1.7 |
1.93 |
|
1 1/2 |
1.5 |
38.1 |
0.82 |
1.13 |
1.49 |
1.64 |
1.87 |
2.17 |
|
1 3/4 |
1.75 |
44.45 |
0.97 |
1.32 |
1.74 |
1.92 |
2.2 |
2.5 |
|
2 |
2 |
50.8 |
– |
1.52 |
1.99 |
2.2 |
2.53 |
2.89 |
|
2 1/4 |
2.25 |
57.15 |
– |
1.73 |
2.26 |
2.48 |
2.87 |
3.26 |
|
2 3/8 |
2.375 |
60.325 |
– |
1.81 |
2.38 |
2.63 |
3.02 |
3.44 |
|
2 1/2 |
2.5 |
63.5 |
– |
1.91 |
2.52 |
2.78 |
3.18 |
3.66 |
|
2 7/8 |
2.875 |
73.025 |
– |
2.2 |
2.9 |
3.2 |
3.68 |
4.2 |
|
3 |
3 |
76.2 |
– |
2.31 |
3.04 |
3.35 |
3.85 |
4.39 |
|
3 1/2 |
3.5 |
88.9 |
– |
2.69 |
3.56 |
3.93 |
4.51 |
5.15 |
|
4 |
4 |
101.6 |
– |
– |
4.11 |
4.54 |
5.21 |
5.95 |
High Temperature 321H Pipe & Tube Dimensions Tolerance Chart:
|
Dimensions
Standard
|
Out Diameter（mm） |
Wall Thickness（%） |
Cutting Length（mm） |
|||
|
Size(mm) |
Tolerance |
Size(mm) |
Tolerance |
Tolerance |
||
|
ASTM213 |
D＜25.4 |
+0.10/-0.10 |
D＜38.1 |
+20/0 |
D＜50.8 |
+3.0/0 |
|
25.4~38.1 |
+0.15/-0.15 |
|||||
|
38.1~50.8 |
+0.20/-0.20 |
|||||
|
50.8~63.5 |
+0.25/-0.25 |
D≥38.1 |
+22/0 |
D≥50.8 |
+5.0/0 |
|
|
63.5~76.2 |
+0.30/-0.30 |
|||||
|
76.2~101.6 |
+0.38/-0.38 |
|||||
|
101.6~190.5 |
+0.38/-0.64 |
|||||
|
190.5~228.6 |
+0.38/-1.14 |
|||||
|
ASTM A269 |
D＜12.7 |
+0.13/-0.13 |
|
+15/-15 |
|
+3.2/0 |
|
12.7~38.1 |
+10/-10 |
|||||
|
38.1~88.9 |
+0.25/-0.25 |
+4.8/0 |
||||
|
88.9~139.7 |
+0.38/-0.38 |
|||||
|
139.7~203.2 |
+0.76/-0.76 |
|||||
|
ASTM A312 |
10.29~48.26 |
+0.40/-0.80 |
|
+12.5/-12.5 |
|
+6.0/0 |
|
48.26~114.30 |
+0.80/-0.80 |
|||||
|
114.30~219.08 |
+1.60/-0.80 |
|||||
|
219.08~457.20 |
+2.40/-0.80 |
|||||
|
ASTM A789 |
D≤12.7 |
+0.13/-0.13 |
|
+15/-15 |
|
+3.0/0 |
|
12.7~38.1 |
+10/-10 |
|||||
|
38.1~88.9 |
+0.25/-0.25 |
+5.0/0 |
||||
|
88.9~139.7 |
+0.38/-0.38 |
|||||
|
139.7~203.2 |
+0.76/-0.76 |
|||||
|
ASTM A790 |
10.29~48.26 |
+0.40/-0.80 |
|
|
|
|
|
48.26~114.3 |
+0.80/-0.80 |
|
|
|
|
|
|
114.3~219.08 |
+1.60/-0.80 |
|
|
|
|
|
|
219.08~457.20 |
+2.40/-0.80 |
|
|
|
|
|
|
JIS G3459 |
D<30 |
+0.30/-0.30 |
S<2 |
+20/-20 |
|
+7.0/0 |
|
D≥30 |
+1%-1% |
S≥2 |
+10/-10 |
|
||
|
EN17455-02 |
10~30 |
+0.30/-0.30 |
S≤3 |
+14/-14 |
1.0~3.0 |
+15.0/0 |
|
30~50 |
+4.00/-4.00 |
S＞3 |
+12/-10 |
|||
|
D＞50 |
+9%/-9% |
|
|
|||
|
EN17456-02 |
6~10 |
+0.20/-0.20 |
0.5~1.0 |
+0.15/-0.15 |
|
+15.0/0 |
|
10~30 |
+0.30/-0.30 |
1.0~3 |
+14/-14 |
|
||
|
30~50 |
+4.00/-4.00 |
S＞3 |
+12/-10 |
|
||
|
D＞50 |
+0.90%-0.9% |
|
|
|
||
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