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A 493 S40940 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 493 S40940

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SAE A 493 S40940

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This page is mainly introduced the A 493 S40940 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 493 S40940,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

Steel Garde:A 493 S40940
Type:Stainless Steels
Country:USA
Standard:SAE
Standard Number:

ITEM Standard Number Descriptions

1 A 493 (2009) Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging
Metallographic Structure:Ferrite
Application:Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

ITEM	Standard Number	Descriptions
1	A 493 (2009)	Stainless Steel Wire and Wire Rods for Cold Heading and Cold Forging

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
S40940	AISI	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.06
Mn		1.00
Si		1.00
P		0.045
S		0.04
Cr	10.50	11.70
Ni		0.50
Mo

Mechanical Properties

Tensile strength	166～509	σb/MPa
Yield Strength	427	σ 0.2 ≥/MPa
Elongation	16	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	574～655	-
HRC	30	-

Physical Properties

Thermal expansion	69-14	e-6/K
Thermal conductivity	98-55	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5690-3435	째C
Density	5534-1349	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)
A 493 S40940 Stainless Steels	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