AISI AISI 661

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AISI 661 Profile
AISI 661 Chemical composition
AISI 661 Mechanical Properties
AISI 661 Physical Properties
AISI 661 Heat treatment
AISI 661 Size Availability
AISI 661 Relevant products

Profile

This page is mainly introduced the AISI 661 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of AISI 661,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
AISI 661

Steel Garde:AISI 661
Type:Special Alloy
Country:USA
Standard:AISI
Application:precipitation hardening

Relevant products:

SKD-11 Cold working die steel

X165CrMoV12 Cold...

17-4ph steel wire

A387 F5 / Grade 5 Coil / Sheet

D2 Round Bar

P20 tool steel round bar

D3 tool steel round bar/plate

T30402/X155CrVMo12...

1.4980 Round Bar

DT413 / 4Cr5MoSiV1MOD

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
AISI 431	AISI	USA
AISI 440A	AISI	China
AISI 440B	AISI	USA
AISI 440F	AISI	USA
AISI 440F Se	AISI	USA
AISI 501	AISI	USA
AISI 501A	AISI	USA
AISI 501B	AISI	USA
AISI 502	AISI	USA
AISI 503	AISI	USA
AISI 504	AISI	USA
AISI S13800		USA
AISI S15500	AISI	USA
AISI 632	AISI	USA
AISI 630	AISI	USA
AISI 635	AISI	USA
AISI 631	AISI	USA
AISI 633	AISI	USA
AISI 633	AISI	USA
AISI 634	AISI	USA
AISI 634	AISI	USA
AISI 650	AISI	USA
AISI 652	AISI	USA
AISI 653	AISI	USA
AISI 660	AISI	USA
AISI 662	AISI	USA
AISI 662	AISI	USA
AISI 663	AISI	USA
AISI 664	AISI	USA
AISI 665	AISI	USA
AISI 670	AISI	USA
AISI 671	AISI	USA
AISI 680	AISI	USA
AISI 681	AISI	USA
AISI 682	AISI	USA
AISI 683	AISI	USA
AISI 684	AISI	USA
AISI 685	AISI	USA
AISI 686	AISI	USA
AISI 687	AISI	USA
AISI 688	AISI	USA
AISI 689	AISI	USA
AISI 690	AISI	USA
X10CrAISi7/X10CrAI7	DIN	Germany
X10CrAISi13/X10CrAI13	DIN	Germany
X10CrAISi18/X10CrAI18	DIN	Germany
X10CrAISi25/X10CrAI24	DIN	Germany
Q195		China
Q215		China
Q215 B		China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	225～585	σb/MPa
Yield Strength	882	σ 0.2 ≥/MPa
Elongation	99	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	728～330	-
HRC	30	-

Physical Properties

Thermal expansion	51-09	e-6/K
Thermal conductivity	27-14	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7846-7129	째C
Density	2797-3384	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
AISI 661 Special Alloy	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk