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

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UNS 304H

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This page is mainly introduced the 304H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 304H,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Chemical compositions of SAE wrought stainless steels

Steel Garde:304H
Type:Stainless Steels
Country:USA
Standard:UNS
Standard Number:

ITEM Standard Number Descriptions

1 SAE J 405 (1998) Chemical compositions of SAE wrought stainless steels
Metallographic Structure:Austenite
Application:Chemical compositions of SAE wrought stainless steels

ITEM	Standard Number	Descriptions
1	SAE J 405 (1998)	Chemical compositions of SAE wrought stainless steels

Relevant products:

S30409/304H/S30409/1.4948 Tube

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 182 F 304H	SAE	USA
A 213 TP304H	SAE	USA
A 240 Type 304H	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	366～322	σb/MPa
Yield Strength	979	σ 0.2 ≥/MPa
Elongation	24	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	750～006	-
HRC	30	-

Physical Properties

Thermal expansion	13-94	e-6/K
Thermal conductivity	35-77	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7073-9399	째C
Density	1309-8264	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)
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