N06690 - ASTM B 166-2025 - H2ABC

中文版

USA UNS	N06690
Corresponding Standard	ASTM B 166-2025 Standard Specification for Nickel-Chromium-Aluminum Alloy, Nickel-Chromium-Iron Alloys, Nickel-Chromium-Cobalt-Molybdenum Alloy, Nickel-Iron-Chromium-Tungsten Alloy, and Nickel-Chromium Molybdenum-Copper Alloy Rod, Bar, and Wire
Classification	Nickel and Nickel Alloys
Properties	Corrosion Resistance

Chemical Element Composition Content (%)

Component	Fe	C	Si	Mn	S	Cr	Ni	Cu
Minimum Value	7	-	-	-	-	27	58	-
Maximum Value	11	0.05	0.5	0.5	0.015	31	-	0.5

Mechanical Properties

Condition and Diameter (d) or Distance Between Parallel Surfaces mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Hardness HBW
Rounds: d<12.7	Cold-worked	≥825	≥620	≥7 ①
Rounds: 12.7≤d≤25.4	Cold-worked	≥760	≥585	≥10
Rounds: 25.4＜d≤63.5	Cold-worked	≥725	≥550	≥12
Squares, hexagons. and rectangles：d≤ 6.4	Cold-worked	≥690	≥550	≥5 ①
Squares, hexagons. and rectangles：6.4＜d＜12.7	Cold-worked	≥655	≥480	≥7
Rounds: 6.4≤d≤12.7	Hot worked	≥655	≥310	≥20
Rounds: 12.7＜d≤76.2	Hot worked	≥620	≥275	≥25
Rounds: d＜76.2	Hot worked	≥585	≥240	≥30
Squares, hexagons. and rectangles: All sizes	Hot worked	≥585	≥240	≥20
Rings and disks	Hot worked				Hardness B75 to B100, or equivalent
Rods and bars, all sizes	Cold-worked (annealed) or hot-worked (annealed):	≥586	≥240	≥30 ①
Rings and disks	Cold-worked (annealed) or hot-worked (annealed):				Hardness B75 to B95, or equivalent

Approximate Comparison Table Corrosion-Resistant Alloy

China		United States		Germany
GB	ISC	Commercial Grade	UNS	L-Nr.
NS 3105 (NS 315) (0Cr30Ni60Fe10)	H 06690 H 03105	Inconel 690	N 06690	2.4642

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