A stainless steel that is designed to provide resistance to wide range of corrosive environments is a 904l stainless steel pipe.The main reason for this pipe to offer excellent corrosion resistance is because of the combination of nickel and chromium, in addition to molybdenum and copper to its chemical composition.
Adding to this, it has a chemical composition of 23-28% nickel, 19-235 chromium, 4-5% molybdenum, 1-2% copper, and 2% manganese.Due to the presence of the above-mentioned ratios of nickel and molybdenum, it also shows excellent resistance to pitting, cracking, and general corrosions when compared to grade 316L and 317L.
There are many aspects that can be seen and shows uniqueness when one chooses stainless steel 904l pipe.
ASTM A312 tp904l pipe
Stainless steel 904l pipe
SS 904l tube
Because of the presence of molybdenum content in the chemical composition or mixture of 904l pipe and higher content of nickel and chromium, this pipe does not only provide resistance to crevice, but also to corrosion in wide range of environments.They also suffer less stress corrosion along with other standard corrosions when comparing other grades of stainless-steel pipes such as 304L.They even resist corrosions.
Length | Size | Wall Thickness |
---|---|---|
single, double random | 1/2 " to 48" NB | 0.3 to 50 mm |
Process | Specification | Application |
seamless, hot rolled, annealed, welded | ASTM B677, A213, B674, B673 | oil refinery, chemical plant |
904l stainless steel seamless pipe
UNS N08904 welded pipe
WNR 1.4539 seamless tube
Grade | P | C | Si | CU | Mn | S | Ni | Cr | MO | |
---|---|---|---|---|---|---|---|---|---|---|
904L | Min | – | – | – | 1.00 | – | – | 23.00 | 19.0 | 4.00 |
max | 0.045 | 0.20 | 1.00 | 2.00 | 2.00 | 0.035 | 28.00 | 23.0 | 5.00 |
Density | 8.0 g/cm3 |
Melting Point | 1454 °C (2650 °F) |
Tensile Strength | Psi – 75000 , MPa – 515 |
Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
Elongation | 35 % |
STANDARD | UNS | EN | JIS | WERKSTOFF NR. | AFNOR | BS | KS |
---|---|---|---|---|---|---|---|
SS 904L | N08904 | X1NiCrMoCu25-20-5 | SUS 890L | 1.4539 | Z2 NCDU 25-20 | 904S13 | STS 317J5L |
Ss 904l tube tends to have low resistance to scratches because of their low rockwell hardness.Very important to note that this rockwell hardness depends entirely upon the hardness of the material.Hence they tend to scratch easily, when comparing other grades of stainless steel alloys.
TIG/GTAW, SMAW, SAW, MIG/GMAW and PAW are the ideal ways by which you can weld 904l tubing.The material which is to be used for this purpose must be a nickel-based alloy or filter metal.
As 904l stainless steel seamless pipes are offering excellent and characteristic properties, they are widely demanded by most of the industries and nominal customer.
Btu/(lb °F) | Temperature, °C | Temperature, °F | J/(kg °C) |
---|---|---|---|
0.12 | 100 | 200 | 485 |
0.11 | 20 | 68 | 460 |
0.13 | 300 | 600 | 545 |
0.15 | 700 | 1300 | 615 |
0.12 | 200 | 400 | 515 |
0.14 | 500 | 1000 | 590 |
0.14 | 400 | 800 | 570 |
0.15 | 600 | 1200 | 605 |
O.D.Inches | Nominal | 80 | 10 | 80s & E.H. | 40s & Std | 10s | 40 | 160 |
---|---|---|---|---|---|---|---|---|
.540 | 1/4 | .119 | .065 | .119 | .088 | .065 | .088 | |
.405 | 1/8 | .095 | .049 | .095 | .068 | .049 | .068 | |
.675 | 3/8 | .126 | .065 | .126 | .091 | .065 | .091 | |
1.050 | 3/4 | .154 | .083 | .154 | .113 | .083 | .113 | .218 |
.840 | 1/2 | .147 | .083 | .147 | .109 | .083 | .109 | .187 |
1.315 | 1 | .179 | .109 | .179 | .133 | .109 | .133 | .250 |
1.900 | 1 1/2 | .200 | .109 | .200 | .145 | .109 | .145 | .281 |
1.660 | 1 1/4 | .191 | .109 | .191 | .140 | .109 | .140 | .250 |
2.375 | 2 | .218 | .109 | .218 | .154 | .109 | .154 | .343 |
3.500 | 3 | .300 | .120 | .300 | .216 | .120 | .216 | .437 |
2.875 | 2 1/2 | .276 | .120 | .276 | .203 | .120 | .203 | .375 |
4.000 | 3 1/2 | .318 | .120 | .318 | .226 | .120 | .226 | |
5.000 | 4 1/2 | .355 | .247 | |||||
4.500 | 4 | .337 | .120 | .337 | .237 | .120 | .237 | .531 |
5.563 | 5 | .375 | .134 | .375 | .258 | .134 | .258 | .625 |
7.625 | 7 | .500 | .301 | |||||
6.625 | 6 | .432 | .134 | .432 | .280 | .134 | .280 | .718 |
8.625 | 8 | .500 | .148 | .500 | .322 | .148 | .322 | .906 |
18.000 | 18 | .937 | .250 | .500 | .375 | .188 | .562 | 1.781 |
10.750 | 10 | .593 | .165 | .500 | .365 | .165 | .365 | 1.125 |
9.625 | 9 | .500 | .342 | |||||
12.750 | 12 | .687 | .180 | .500 | .375 | .180 | .406 | 1.312 |
14.000 | 14 | .750 | .250 | .500 | .375 | .188 | .437 | 1.406 |
11.750 | 11 | .500 | .375 | |||||
16.000 | 16 | .843 | .250 | .500 | .375 | .188 | .500 | 1.593 |