Stainless steel type 347 is part of a family of stainless steel alloys (301, 302Type 347 stainless steel has slightly improved corrosion resistance over type 321 stainless steel in strongly oxidizing environments., 303, 304, 316, 347). Type 347 is a columbium/tantalum stabilized austenitic chromium-nickel stainless steel which was developed to provide an 18-8 type alloy with improved intergranular-corrosion resistance. Type 347 has a slightly improved corrosion resistance over other types of stainless steel in strongly oxidizing environments as a result of the addition of columbium and tantalum. Columbium-tantalum carbides precipitate within the grains instead of forming at the grain boundaries. Type 347 should be considered for applications requiring intermittent heating between 800ºF (427ºC) and 1650ºF (899ºC), or for welding under conditions which prevent a post-weld anneal.
SIZE 6MM TO 200MM DIA ROUND BAR.
SIZE 1MM TO 100MM THICKNESS PLATE.
SIZE 6MM TO 350MM OD PIPE .
SIZE 0.5MM TO 6MM DIA WIRE.
.AVAILABLE IN STOCK.
Nominal Composition in Percentage:Ni 11.00
Cr 18.00
Fe Balance
Si 1.00
Mn 2.00
C 0.080
P 0.045
S 0.030
Cb+Ta 10 x C
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Specifications : FERRALIUM to MLA-MPS-255FG46 BAR, ASTM A276
Ferralium 255 SD50 sets a new bench mark for Super Duplex as the first to state 570N/mm2 as the minimum 0.2% Proof Stress. It offers excellent corrosion resistance in a wide variety of corrosive chemicals including sulphuric, phosphoric and nitric acids.
In Seawater and other chloride containing environments Ferralium 255 SD50 also provides outstanding resistance to pitting and crevice corrosion, with Critical Pitting Temperature exceeding 50°C.
Excellent ductility and impact strength at both ambient and sub-zero temperatures combine with a high resistance to abrasion, erosion and cavitation erosion.
Listed in NACE MR 01 75 for sour service and having gained ASME Approval for Pressure Vessel applications, Ferralium 255-SD50 is tested to the highest degree using tests designed to guarantee that the trade-marked product possesses high integrity, a correct phase balance and the absence of sigma and other deleterious phases.
Ferralium 255 SD50 is particularly applicable for large forgings, as the formation of sigma phase is much less likely than it is for other Super Duplexes.
CHEMICAL PROPERTIES
Elements | C | Cr | Cu | Fe | Mo | Mn | N | Ni | P | S | Si |
---|---|---|---|---|---|---|---|---|---|---|---|
Minimum | 24.50 | 1.50 | REMAINDER | 3.10 | 0.80 | 0.20 | 5.50 | 0.20 | |||
Maximum | 0.030 | 26.50 | 2.00 | 3.80 | 1.20 | 0.25 | 6.50 | 0.025 | 0.005 | 0.70 |
SIZE 6MM TO 200MM DIA ROUND BAR.
SIZE 1MM TO 100MM THICKNESS PLATE.
SIZE 6MM TO 350MM OD PIPE .
SIZE 0.5MM TO 6MM DIA WIRE.
.AVAILABLE IN STOCK.
SIZE 6MM TO 200MM DIA ROUND BAR.
SIZE 1MM TO 100MM THICKNESS PLATE.
SIZE 6MM TO 350MM OD PIPE .
SIZE 0.5MM TO 6MM DIA WIRE.
.AVAILABLE IN STOCK.
Technical Data SheetChemical Composition Limits | ||||||||||
Weight% | C | Si | Mn | P S max | Cr | Ni | Cu | Cb | Fe | Mo |
AMS 5659 15-5 | 0.07 | 1.0 | 1.0 | 0.03P 0.015S | 14.0-15.50 | 3.50-4.50 | 2.50-4.50 | 0.45 | Bal | 0.50 |
Material | Condition | Ultimate Tensile Strength (ksi) | 0.2 % Yield Strength (ksi) | Elongation % in 2D | % Reduction of Area | Rockwell C Hardness |
Alloy 15-5 PH Bar AMS 5659 | Cond A | - | - | - | - | 363 HB max |
Alloy 15-5 PH Bar AMS 5659 | H900 | 190 | 170 | 10 | 35 | 388-444 |
Alloy 15-5 PH Bar AMS 5659 | H925 | 170 | 155 | 10 | 38 | 375-429 |
Alloy 15-5 PH Bar AMS 5659 | H1025 | 155 | 145 | 12 | 45 | 331-401 |
Alloy 15-5 PH Bar AMS 5659 | H1075 | 145 | 125 | 13 | 45 | 311-375 |
Alloy 15-5 PH Bar AMS 5659 | H1100 | 140 | 115 | 14 | 45 | 302-363 |
Alloy 15-5 PH Bar AMS 5659 | H1150 | 135 | 105 | 16 | 50 | 277-352 |
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Specifications : ASTM A182 TP304H, ASTM A213 TP304H, ASTM A240 TP304H
Unlike 304L, Type 304H has a higher carbon content making the steel more suitable for use in applications where elevated temperatures are present. It is an austenitic chromium-nickel steel alloy and the greater carbon content delivers an increased tensile and yield strength.
The material is recommended for use in ASME pressure vessels in working service above 525° C due to the grade's heat resistant properties.
Benefits of using 304H Stainless SteelBenefits of using Grade 304H stainless steel include:
304H stainless steel is commonly found in the oil refining, gas and chemical industry and is used in industrial boilers, pressure vessels, heat exchangers, pipelines and condensers. The material is also used throughout the power generation industry.
Chemical Composition of Grade 304H Stainless SteelThe chemical composition of Grade 304H Stainless Steel is provided in the table below.
UNS NO | Grade | C | Si | Mn | P | S | Cr | Mo | Ni | N |
S30409 | 304H | 0.04/0.10 | 0.75 | 2.00 | 0.045 | 0.030 | 18.00/20.00 | - | 8.00/10.50 | 0.10 |
SIZE 6MM TO 200MM DIA ROUND BAR.
SIZE 1MM TO 100MM THICKNESS PLATE.
SIZE 6MM TO 350MM OD PIPE .
SIZE 0.5MM TO 6MM DIA WIRE.
.AVAILABLE IN STOCK.
Additional Information:
SS 13 - 8 PH PIPE
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