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18-8 Type 304 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 18-8 Type 304

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ASME 18-8 Type 304

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This page is mainly introduced the 18-8 Type 304 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 18-8 Type 304,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

MIL-S-5059D Steel, corrosion resistant (18-8) plate, sheet and strip; Replaced by: SAE AMS 5513; SAE AMS 5910; SAE AMS 5911; SAE AMS 5912; SAE AMS 5913, SAE AMS 5524; SAE AMS 5516; SAE AMS 5517; SAE AMS 5518; SAE AMS 5519; SAE AMS 5901; SAE AMS 5902; SAE AMS 5903; SAE AMS 5904; SAE AMS 5905; SAE AMS 5906; SAE AMS 5907

Replaced by SAE-AMS5513, SAE-AMS5910-5913, SAE-AMS5524, SAE-AMS5516-5519, SAE-AMS5901-5907

Steel Garde:18-8 Type 304
Type:Stainless Steels
Country:USA
Standard:ASME
Standard Number:

ITEM Standard Number Descriptions

1 MIL-S-5059D Steel, corrosion resistant (18-8) plate, sheet and strip
Metallographic Structure:Austenite
Application:Steel, corrosion resistant (18-8) plate, sheet and strip

ITEM	Standard Number	Descriptions
1	MIL-S-5059D	Steel, corrosion resistant (18-8) plate, sheet and strip

Relevant products:

T30402/X155CrVMo12...

06Cr19Ni10/S30408/...

S30409/304H/S30409/1.4948 Tube

S30403/304L/S30403/1.4307 Tube

S30453/304LN/1-4311 Tube

ASTM A269 TP304...

1.4307/S30403/304L...

D2(Cr12Mo1V1) Hot Rolled Plate

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
GH3044	GB	China
304	UNS	USA
304	ASTM	USA
304	ASME	USA
A 167 Type 304	SAE	USA
A 182 F 304	SAE	USA
A 213 TP304	SAE	USA
304 L	YB	USA
304L	UNS	USA
304L	ASME	USA
A 167 Type 304L	SAE	USA
A 182 F 304L	SAE	USA
A 213 TP304L	SAE	USA
A 240 Type 304L	SAE	USA
A 249 TP304L	SAE	USA
A 269 TP304L	SAE	USA
A 270 TP304L	SAE	USA
A 276 304L	SAE	USA
A 314 304L	SAE	USA
A 336 Grade F304L	SAE	USA
A 358 304L	SAE	USA
A 403 WP 304L	SAE	USA
A 409 TP304L	SAE	USA
A 473 304L	SAE	USA
A 478 Type 304L	SAE	USA
A 479 304L	SAE	USA
A 493 Type 304L	SAE	USA
A 511 MT304L	SAE	USA
A 554 MT 304L	SAE	USA
A 580 Type 304L	SAE	USA
A 632 Grade TP 304L	SAE	USA
A 666 Type 304L	SAE	USA
A 688 Grade TP 304L	SAE	USA
A 774 Grade TP 304L	SAE	USA
A 778 Grade TP 304L	SAE	USA
A 793 Type 304L	SAE	USA
A 813 Grade TP 304L	SAE	USA
A 814 Grade TP 304L	SAE	USA
A 943 TP304L	SAE	USA
A 959 Type 304L	SAE	USA
F 2281 304L	SAE	USA
F 593 304 L	SAE	USA
F 594 304L	SAE	USA
F 880 Class A1-50 304L	SAE	USA
F 880 Class A1-70 304L	SAE	USA
IC-304L	ASME	USA
SA-182 F 304L	AMS	USA
SA-213 Grade TP 304L	AMS	USA
SA-249 TP 304L	AMS	USA
SA-276 304L	AMS	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Si		1.00
Mn		2.00
P		0.045
S		0.03
Cr	18.0	20.0
Ni	8.00	10.5
N		0.10

Mechanical Properties

Tensile strength	250～317	σb/MPa
Yield Strength	789	σ 0.2 ≥/MPa
Elongation	96	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	233～125	-
HRC	30	-

Physical Properties

Thermal expansion	07-79	e-6/K
Thermal conductivity	35-49	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1245-4875	째C
Density	2148-2983	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)
18-8 Type 304 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