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A 240 Type 304H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 240 Type 304H

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SAE A 240 Type 304H

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This page is mainly introduced the A 240 Type 304H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 240 Type 304H,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Steel Garde:A 240 Type 304H
Type:Stainless Steels
Country:USA
Standard:SAE

Standard Number:

ITEM	Standard Number	Descriptions
1	A 240/A 240M (2012)	Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Metallographic Structure:Austenite
Application:Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Relevant products:

S30409/304H/S30409/1.4948 Tube

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
304H	UNS	USA
A 182 F 304H	SAE	USA
A 213 TP304H	SAE	USA
A 249 TP304H	SAE	USA
A 271 TP304H	SAE	USA
A 312 TP304H	SAE	USA
A 336 Grade F304H	SAE	USA
A 358 304H	SAE	USA
A 376 TP304H	SAE	USA
A 403 CR304H	SAE	USA
A 403 WP 304H	SAE	USA
A 430 FP 304H	SAE	USA
A 452 TP304H	SAE	USA
A 240 S30409	SAE	USA
A 249 S30409	SAE	USA
A 358 S30409	SAE	USA
A 813 S30409	SAE	USA
A 814 S30409	SAE	USA
A 965 S30409	SAE	USA
S30409	AISI	USA
SA-240 S30409	AMS	USA
SA-358 S30409	AMS	USA
SA-813 S30409	AMS	USA
SA-814 S30409	AMS	USA
SA-965 S30409	AMS	USA
S30415	AISI	USA
A 240 S30452	SAE	USA
A 276 S30452	SAE	USA
S30452	AISI	USA
SA-240 S30452	AMS	USA
SUS 304HFB	JIS	Japan
SUS 304HTP	JIS	Japan
STSF304H	KS	Korea

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.04	0.10
Si		1.00
Mn		2.00
P		0.04
S		0.03
Cr	18.0	20.0
Ni	8.00	11.0

Mechanical Properties

Tensile strength	996～373	σb/MPa
Yield Strength	809	σ 0.2 ≥/MPa
Elongation	53	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	500～993	-
HRC	30	-

Physical Properties

Thermal expansion	25-31	e-6/K
Thermal conductivity	59-13	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7520-2740	째C
Density	1854-3571	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 240 Type 304H 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