Product Description
Super Ferrite Stainless Steel Welded Tube AISI443 for Exhaust system
Chemical Component
| Material |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Ti |
Nb |
N |
| 409L |
0.006 |
0.25 |
0.17 |
0.020 |
0.001 |
12.5 |
- |
- |
0.15 |
0.20 |
0.007 |
| 429 |
0.008 |
1.5 |
0.30 |
0.002 |
0.001 |
15.0 |
- |
- |
0.15 |
0.5 |
0.010 |
| 439 |
0.009 |
0.25 |
0.25 |
0.02 |
0.001 |
17.5 |
- |
- |
0.15 |
0.20 |
0.010 |
| 441 |
0.009 |
0.25 |
0.25 |
0.02 |
0.001 |
17.5 |
- |
- |
0.15 |
0.45 |
0.010 |
| 436L |
0.007 |
0.47 |
0.24 |
0.016 |
0.003 |
17.5 |
0.12 |
1.09 |
0.15 |
0.22 |
0.013 |
| 443 |
0.009 |
0.25 |
0.25 |
0.02 |
0.001 |
20.5 |
- |
- |
0.25 |
0.25 |
0.011 |
| 444 |
0.010 |
0.25 |
0.14 |
0.014 |
0.003 |
18.3 |
0.18 |
1.99 |
0.16 |
0.32 |
0.012 |
| 445 |
0.009 |
0.25 |
0.25 |
0.02 |
0.001 |
20.8 |
- |
- |
0.25 |
0.25 |
0.011 |
| 445J1 |
0.009 |
0.25 |
0.25 |
0.02 |
0.001 |
21.5 |
- |
0.8 |
0.25 |
0.25 |
0.011 |
| 445J2 |
0.009 |
0.25 |
0.25 |
0.02 |
0.001 |
21.5 |
- |
1.8 |
0.25 |
0.25 |
0.011 |
| 446 |
0.010 |
0.25 |
0.20 |
0.023 |
0.002 |
26.5 |
2.5 |
3.5 |
0.15 |
0.30 |
0.021 |
304 stainless steel pipe tube
WHAT IS SUPER FERRITE STAINLESS STEEL?
*It is a kind of ferrite stainless steel which contains low carbon ,Nitrogen and other chemical element.
*C+N≤120ppm -400ppm(250ppm,150ppm).
CHARACTERISTICS
*With very low carbon and nitrogen-meet the requirement of processing and performance
*Niobium titanium dual stabilization-improved welding performance
*Chromium content:low chromium(10.5-15%),chromium(15-22%)and high chromium(22-32%);
ADVANTAGE
*Good abilities of stress corrosion, all kinds of localized corrosion,antioxidant corrosion(including high temperature oxidation resistance).
*Low density
*Good thermal conductivity: It is 30%-50% higher than Austenite. Small coefficient of thermal expansion: It is 30%-40% less than Austenite.
*Big elastic modulus
*Good processing properties
*Easily bending, stamping, curling, pinin, cold forging and machining.
*Excellent deep drawability
APPLICABLE INDUSTRIES
Exhaust system:429,436L,439M,441
Decorative/products:019Cr21Cu Ti(443)
Water System:444,445J1/445J2
High corrosion resistance:446
The Tolerance of Outer Diameter and Wall Thickness Unit:mm
| Hot rolling(extrusion,expansion) steel tube |
Cold drawn(rolling)steel tube |
| Diamension |
Tolerance |
Diamension |
Tolerance |
| Ordinary Grade PA |
High Grade PC |
Ordinary Grade PA |
High Grade PC |
|
Nominal Outer Diameter
D
|
68~159 |
±1.25%D |
±1%D |
Nominal Outer Diameter
D
|
6~10 |
±0.20 |
±0.15 |
| >10~30 |
±0.30 |
±0.20 |
| >30~50 |
±0.40 |
±0.30 |
| >50~219 |
±0.85%D |
±0.75%D |
| >159 |
±1.5%D |
>219 |
±0.9%D |
±0.8%D |
|
Nominal Wall Thickness
S
|
<15 |
+15%S
-12.5%S
|
±12.5%S |
Nominal Wall Thickness
S
|
≤3 |
±12%S |
±10%S |
| ≥15 |
+20%S
-15%S
|
>3 |
+12.5%S
-10%S
|
±10%S |
The Tolerance of Minimum Wall Thickness Unit:mm
| Manufacturing Method |
Diamension |
Tolerance |
| Ordinary Grade PA |
High Grade PC |
|
Hot rolling(extrusion,expansion) steel tube
W-H
|
Smin<15 |
+25%Smin
0
|
+22.5%Smin
0
|
| Smin≥15 |
+32.5%Smin
0
|
|
Cold drawn(rolling)steel tube
W-C
|
All Wall Tickness |
+22%Smin
0
|
+20%Smin
0
|
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