Alloy 825 Stainless Steel Coil Tubing Price

Short Description:

SIHE STAINLESS STEEL ’s Incoloy 825 is a Ni-Fe-Cr alloy with additions of molybdenum, copper and titanium. Nickel steel 825 alloy’s chemical composition is designed in order to offer brilliant resistance to many corrosive environments. Alloy 825 material has improved resistance to aqueous corrosion. Incoloy 825 UNS N08825 has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. Alloy 825 pipes and tubes are especially resistant to sulfuric and phosphoric acids. This alloy is used for chemical processing, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.

ASTM B163 Incoloy 825 all forms are as per the ISO 17025, ISO 9001:2008, 18001:2007, 14001:2004 standards such as Sheet, Plate, Bar, Pipe & Tube welded as well as seamless, Fittings (like flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples), Weld Wire (AWS Classification: ERNiFeCr-1 y ENiCrMo-3), Wire.

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Alloy 825 (UNS N08825) Chemical Composition, %

Ni	Fe	Cr	Mb	Cu	Ti	C	Mn	S	Si	Al
38.0-46.0	22.0 min	19.5-23.5	2.5-3.5	1.5-3.0	.6-1.2	0.05 max	1.0 max	0.03 max	0.5 max	0.2 max

Corrosion Resistance
Alloy 825 has a high level of corrosion resistance. It resists general corrosion, pitting, crevice corrosion, intergranular corrosion, and stress-corrosion cracking in both reducing and oxidizing environments.

In what applications is Incoloy 825 used?

Chemical Processing
Pollution-control
Oil and gas well piping
Nuclear fuel reprocessing
Components in Pickling equipment like heating coils, tanks, baskets and chains
Acid production

ASTM Specifications

Pipe Smls	Pipe Welded	Tube Smls	Tube Welded	Sheet/Plate	Bar	Forging	Fitting
B423				B424	B425	B564	B366, B564

General Mechanical Properties

Tensile (ksi)	.2% Yield (ksi)
85	30-35

Typical Mechanical Properties

Material	Form and Condition	Tensile Strength MPa	Yield Strength (0.2% Offset) MPa	Elongation (%)
Alloy 825 Tube	Annealed	772	441	36
Alloy 825 Tube	Cold Drawn	1000	889	15
Alloy 825 Bar	Annealed	690	324	45
Alloy 825 Plate	Annealed	662	338	45
Alloy 825 Sheet	Annealed	758	421	39

Incoloy 825 Specification

UNS N08825

WS 2.458

FMC Spec M41104, M40116, M40154

NACE MR-0175/ISO 15156

Alloy 825 Rod, Bars, Forgings	BS 3076 NA16 ASTM B 425 ASTM B 564 ASME SB 425 ASME SB 564 ASME Code Case N-572 DIN 17752, DIN 17753, DIN 17754 VdTUV 432
Other Similar Specifications	ASTM B366 ASME SB 366 DIN 17744
Alloy 825 Sheet, Strip and Plate
BS3072 NA16 BS 3073 NA16 ASTM B 424 ASTM B 906	ASME SB 424 ASME SB 906 DIN 17750 VdTUV 432
Alloy 825 Pipe and Tube	BS 3074 NA16 ASME SB 163 ASTM B 423, ASME SB 423 ASTM B704,ASME SB 704 ASTM B 705, ASME SB 705 ASTM B 751, ASME SB 751 ASTM B 755, ASME SB 755 ASTM B 829, ASME SB 829 DIN 17751, VdTUV 432

Incoloy 825 Melting Point

Element	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
Incoloy 825	8.14 g/cm3	1400 °C (2550 °F)	Psi – 80,000 , MPa – 550	Psi – 32,000 , MPa – 220	30 %

Incoloy 825 Equivalent

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN	OR
Incoloy 825	2.4858	N08825	NCF 825	NA 16	ЭП703	NFE30C20DUM	NiCr21Mo	XH38BT

Alloy 825 Tubing

Alloy 825 is an austenitic nickel-iron-chromium alloy also defined by additions of molybdenum, copper and titanium. It was developed to provide exceptional resistance to numerous corrosive environments, both oxidizing and reducing. With a nickel content range between 38%–46%, this grade exhibits pronounced resistance to stress corrosion cracking (SCC) induced by chlorides and alkalis. The chromium and molybdenum content also provides good pitting resistance in all environments except strongly oxidizing chloride solutions. Utilized as an effective material in a wide variety of process environments, alloy 825 maintains good mechanical properties from cryogenic temperatures up to 1,000° F.

Product Specifications
ASTM B163, B829 / ASME SB163 / NACE MR0175

Size Range

Outside Diameter (OD)	Wall Thickness
.250”–.750”	.035”–.065”

Cold finished and bright annealed tube.

Chemical Requirements
Alloy 825 (UNS N08825)
Composition %

Ni Nickel	Cu Copper	Mo Molybdenum	Fe Iron	Mn Manganese	C Carbon	Si Silicon	S Sulfur	Cr Chromium	Al Aluminum	Ti Titanium
38.0–46.0	1.5–3.0	2.5–3.5	22.0 min	1.0 max	0.05 max	0.5 max	0.03 max	19.5–23.5	0.2 max	0.6–1.2