Inconel 725 Round Bar | UNS N07725 | ASTM B805

Inconel 725 Round Bar Supplier, 2.4856 Round Bar Distributor, UNS N06725 Round Bar Stockist, BS 3076 Round Bar Exporter, ASTM B166 Round Bar Manufacturer.

PM Industries manufactures, supplies, and stocks Inconel 725 Round Bar (UNS N07725). It's a nickel-chromium-molybdenum alloy with niobium and titanium additions, developed specifically for sour gas and high-chloride service where both high mechanical strength and reliable corrosion resistance must be met simultaneously. The alloy is age-hardenable, achieving strength levels that exceed what solid-solution nickel alloys like 625 can provide, while maintaining the corrosion resistance of 625 as a baseline.

2.4856 Round Bar, Inconel 725 Round Bar, ASTM B166 Round Bar, UNS N06725 Round Bar.

725 is essentially a higher-strength, sour-service-qualified version of 625. Where 625 is the right choice for corrosion resistance at moderate strength levels, 725 is specified when downhole pressures, mechanical loads, or NACE strength limits require more than 625 can deliver in the annealed condition. That makes 725 the preferred specification for high-pressure completion equipment and structural oilfield components where corrosion resistance and strength are both hard requirements.

Sour gas service is the application driver for 725. In downhole environments containing hydrogen sulfide, carbon dioxide, chlorides, and high pressures, the combination of stress, corrosion, and hydrogen exposure creates failure mechanisms that eliminate most lower-alloy options. 725 meets NACE MR0175/ISO 15156 qualification requirements in the age-hardened condition, which is the baseline requirement for downhole and wellhead components in sour production wells. That qualification combined with its high strength makes it practical for high-pressure completion hardware where Incoloy 925 or 718 may not provide sufficient corrosion resistance for the specific chemistry involved.

Hydrogen embrittlement resistance is good, which matters in high-pressure hydrogen sulfide environments where susceptible alloys absorb hydrogen at the surface and develop internal cracking under applied stress. 725's nickel content keeps it well above the threshold where that failure mode is a concern, making it reliable in conditions that would embrittle lower-nickel grades.

Strength in the aged condition is substantially higher than 625 in the annealed state. For fasteners, hangers, and structural components that need both the corrosion resistance of the 625-family and mechanical strength beyond what the annealed alloy delivers, 725 fills that specific requirement directly.

Bar is available in solution-annealed and aged conditions across a range of diameters and surface finishes with full material certification to ASTM B805, AMS 5918, and applicable specifications including NACE MR0175/ISO 15156. Contact PM Industries for stock availability, dimensions, and pricing.

Specification Inconel 725 Round Bar

Specification	ASTM, EN, DIN, JIS, BS, ASME, AISI
Condition	Hardened & tempered, annealed
Length	1 to 6 Meters, Custom Cut Lengths
Round Bars	Outside Diameter in the range of 4mm to 500mm above as per the customer requirement.
Bright Bars	Outside Diameter in the range of 4mm to 500mm above as per the customer requirement.
Hex Bars	18mm – 57mm (11/16″ to 2-3/4″) above as per the requirement.
Square Bars	18mm – 47mm (11/16″ to 1-3/4″) above as per the requirement.
Flat Bars	1/2” to 10” in thickness range of 2mm to 150mm
Finish	Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Technique	Hot Rolled, Cold Rolled, Cold Drawn, Forged Round Bar, Rod
Tolerance	H8, H9, H10, H11, H12, H13, K9, K10, K11, K12 or as per clients’ requirements
Test Certificates	EN 10204/3.1B, NACE MR0103, NACE MR0175
Raw Materials Certificate	100% Radiography Test Report
Inspection	Third Party Inspection Report, etc

Available Types

UNS N06725 Surface finish

CD	Cold drawn	P	Polished
BD	Bright drawn	SRE	Slit rolled edge
CG	Centreless ground	HF	Hot finished
CF	Cold finished	HRAP	Hot rolled annealed and pickled
P&T	Peeled and turned	RT	Rough turned/peeled
ST	Smooth turned	PR	Peeled and reeled

Dimensions chart of Alloy 725 Round Bar

Size & Dimensions of Inconel 725 round bar
Metric		US Bar		ASTM/ Canadian		Japanese
Bar Size	Diam. (mm)	Bar Size	Diam. (Inch)	Bar Size	Diam. (mm2)	Bar Size	Diam. (mm)
5	5	#2	0.250	10M	100	6	6
5.5	5.5	#3	0.375	15M	200	10	10
6	6	#4	0.500	20M	300	13	13
7	7	#5	0.718	25M	500	16	16
8	8	#6	0.750	30M	700	19	19
9	9	#7	0.875	35M	1000	22	22
10	10	#8	1.000	45M	1500	25	25
11	11	#9	1.125	55M	2500	29	29
12	12	#10	1.250	32	32
14	14	#11	1.375	35	35
16	16	#12	1.500	38	38
18	18	#13	1.718	41	41
20	20	#14	1.750	44	44
22	22	#15	1.875	48	48
25	25	#16	2.000	51	51
28	28	#18	2.250	57	57
32	32
36	36
40	40
44	44
50	50

Tolerances

Type	SIZES (mm)	SIZES (Inches)	ISO Tolerance
Cold Drawn and Polish	3.00 – 75.00	1/8” – 3.00”	h8-h9-h10-h11, ASTM B637
Cold Drawn and Ground	10.00 – 75.00	5/6” – 2.50”	h8-h9-h10-h11
Peeled and Polished	40.00 – 150.00	1.50” – 6.00”	h11, ASTMA-484 h11-DIN 1013
Peeled and Ground	20.00 – 50.00	3/4″ – 2.00”	h9-h10-h11, ASTM B637

ASTM B637 UNS N06725 bar Ready Shape and Form

Hollow Rod Round Rod Precision Ground Bars Rings Flat Bars Channel Bars T-Bars Round Square Blocks

Rectangle Threaded Billet Half Round Bars I/H Bars Triangle Forging Hex (A/F) Profiles Rectangular Bar Ingot

UNS N06725 Welding Rod Tolerances

Section/Shape	diameter, width or Size across flats	variation Permitted
	millimeter	millimeter
Flat (thickness)	< 18 > 30 ≦ 50 > 18 ≦ 30 > 50 ≦ 80	+ 0 to - 00.110 + 0 to - 00.250 + 0 to - 00.130 + 0 to - 00.350
Square and hexagon	> 18 ≦ 30 ≥ 6 ≦ 18 > 30 ≦ 50 > 80 ≦ 105 > 50 ≦ 80	+ 0 to - 00.110 + 0 to - 00.090 + 0 to - 00.130 + 0 to - 00.250 + 0 to - 00.160
Round	> 18 ≦ 30 ≥6 ≦ 18 > 30 ≦ 50 > 80 ≦ 100 > 50 ≦ 80	+ 0 to - 00.085 + 0 to - 00.070 + 0 to - 00.100 + 0 to - 00.140 + 0 to - 00.120
Flat (width)	< 18 > 30 ≦ 50 > 18 ≦ 30 > 50 ≦ 80 > 160 ≦ 320 > 100 ≦ 130 > 80 ≦ 100 > 130 ≦ 160	+ 0 to - 00.110 + 0 to - 00.160 + 0 to - 00.130 + 0 to - 00.190 + 1.00 to - 1.00 + 0 to - 00.350 + 0 to - 00.220 + 0 to - 1.00

Inconel 725 Round Bar Condition

H&T	Hardened and tempered.
ANN	Annealed
PH	Precipitation hardened.

Available Stock of Inconel 725 Round Bar

Inconel 725 Annealed Round Bar	2.4856 Shafting Round Bar
ASTM B166 Normalized Round Bar	BS 3076 Automotive Round Bar
UNS N06725 Quenched & Tempered Round Bar	Aerospace Round Bar
2.4856 Solution Annealed Round Bar	Inconel 725 Oil & Gas Round Bar
BS 3076 Hardened Round Bar	ASTM B166 Marine Round Bar
Bright Round Bar	UNS N06725 Medical Grade Round Bar
Inconel 725 Polished Round Bar	2.4856 Hot Rolled Round Bar
ASTM B166 Mirror Finish Round Bar	BS 3076 Cold Drawn Round Bar
UNS N06725 Pickled & Passivated Round Bar	Cold Rolled Round Bar
2.4856 Coated / Plated Round Bar	Inconel 725 Forged Round Bar
BS 3076 Commercial Round Bar	ASTM B166 Peeled Round Bar
Precision Round Bar	UNS N06725 Turned Round Bar
Inconel 725 Straight Length Round Bar	2.4856 Ground Round Bar
ASTM B166 Cut-to-Length Round Bar	BS 3076 Centreless Ground Round Bar
UNS N06725 Structural Round Bar	Precision Ground Round Bar