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

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ASME 304L

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This page is mainly introduced the 304L chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 304L,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Tubing, steel, corrosion and heat resistant, for aerospace vehicle hydraulic systems assembled by brazing

Steel Garde:304L
Type:Stainless Steels
Country:USA
Standard:ASME

Standard Number:

ITEM	Standard Number	Descriptions
1	MIL-DTL-23196E	Steel plate, corrosion resistant, austenitic (UNS S30400, S30403, S31600, S34700, and S34800)
2	MIL-P-1144D	Pipe, corrosion-resistant, stainless steel, seamless or welded
3	MIL-S-23196	Steel plate, corrosion resistant, austenitic (UNS S30400, S30403, S31600, S34700, and S34800)
4	MIL-S-4043B	Steel; Corrosion-resisting (extra low carbon type 304), plate, sheet, and strip
5	MIL-S-862B	Steel bar, corrosion resisting, and steel billet, corrosion resisting, reforging application
6	MIL-T-8973	Tubing, steel, corrosion and heat resistant, for aerospace vehicle hydraulic systems assembled by brazing

Metallographic Structure:Austenite
Application:Tubing, steel, corrosion and heat resistant, for aerospace vehicle hydraulic systems assembled by brazing

Relevant products:

S30403/304L/S30403/1.4307 Tube

S30453/304LN/1-4311 Tube

1.4307/S30403/304L...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
304 L	YB	USA
304L	UNS	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
SA-312 Grade TP 304L	AMS	USA
SA-336 Grade F304L	AMS	USA
SA-358 304L	AMS	USA
SA-403 WP 304L	AMS	USA
SA-409 TP304L	AMS	USA
SA-479 Type 304L	AMS	USA
SA-666 304L	AMS	USA
SA-688 TP 304L	AMS	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.030
Si		1.00
Mn		2.00
P		0.045
S		0.03
Cr	18.0	20.0
Ni	8.00	10.0
N		0.10

Mechanical Properties

Tensile strength	715～872	σb/MPa
Yield Strength	797	σ 0.2 ≥/MPa
Elongation	89	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	689～430	-
HRC	30	-

Physical Properties

Thermal expansion	84-25	e-6/K
Thermal conductivity	46-25	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2337-0052	째C
Density	6877-8012	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)
304L 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