|
C |
Mn |
P |
S |
Si |
Ni Nickel |
Cr Chromium |
Mo |
Cu |
Nb + Ta Niobium + Tantalum |
Fe Iron |
|
0.07 max |
2.00 max |
0.045 max |
0.035 max |
1.0 max |
32.00–38.00 |
19.00–21.00 |
2.0–3.0 |
3.0–4.0 |
(8.0xC) - 1.0 max |
35.0 max |
20G Alloy pipe
13 month agoAlloy 20 is an austenitic nickel-iron-chromium-molybdenum alloy with copper additions. This combination makes it more suitable for applications involving sulfuric, phosphoric and nitric acids. The chromium and molybdenum content provides good resistance to pitting and crevice corrosion. This grade offers excellent resistance to chloride-induced stress corrosion cracking (SCC). Alloy 20 can be used in a variety of chemical process environments and has good performance in most acids, alkalis, salts and seawater.
Alloy 20 (UNS N08020) Composition %
20G Alloy Steel Tube Dimensional Tolerances
|
OD |
OD Tolerance |
Wall Tolerance |
|
.250” |
± .005” |
± 15% |
|
.375” |
± .005” |
± 15% |
|
.500” |
± .005” |
± 15% |
20G Alloy Steel Pipe Mechanical Properties
|
Yield Strength: |
35 ksi min |
|
Tensile Strength: |
80 ksi min |
|
Elongation (min 2"): |
30% |
20G seamless steel pipe is mainly used for general boiler purposes, but also used as furnace pipe, heat exchanger pipe and seamless pipe for piping in oil refineries. GNEE Group offers 20G steel tubes with guaranteed hydrostatic, flattening and combustion tests, as well as surface quality and non-destructive testing, in addition to chemical compositions and various mechanical properties.
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