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ER 318 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ER 318

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AMS ER 318

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This page is mainly introduced the ER 318 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ER 318,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Bare Stainless Steel Welding Electrodes and Rods

Steel Garde:ER 318
Type:Stainless Steels
Country:USA
Standard:AMS
Standard Number:

ITEM Standard Number Descriptions

1 SFA-5.9/SFA-5.9M Bare Stainless Steel Welding Electrodes and Rods
Metallographic Structure:Precipitation-Hardening
Application:Bare Stainless Steel Welding Electrodes and Rods

ITEM	Standard Number	Descriptions
1	SFA-5.9/SFA-5.9M	Bare Stainless Steel Welding Electrodes and Rods

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 1049 S31803	SAE	USA
A 240 S31803	SAE	USA
A 270 S31803	SAE	USA
A 276 S31803	SAE	USA
A 479 S31803	SAE	USA
A 511 S31803	SAE	USA
A 789 S31803	SAE	USA
A 790 S31803	SAE	USA
A 815 CRS31803	SAE	USA
A 815 WPS31803	SAE	USA
A 928 S31803	SAE	USA
A 949 S31803	SAE	USA
A 955 S31803 Grade 280	SAE	USA
A 955 S31803 Grade 40	SAE	USA
A 955 S31803 Grade 420	SAE	USA
A 955 S31803 Grade 520	SAE	USA
A 955 S31803 Grade 60	SAE	USA
A 955 S31803 Grade 75	SAE	USA
A 959 S31803	SAE	USA
A 988 S31803	SAE	USA
S31803	AISI	USA
SA-240 S31803	AMS	USA
SA-276 S31803	AMS	USA
SA-479 S31803	AMS	USA
SA-789 S31803	AMS	USA
SA-790 S31803	AMS	USA
SA-815 CRS31803	AMS	USA
SA-815 WPS31803	AMS	USA
1.4318	AMS	USA
A 1031 Grade 8615	SAE	USA
A 1031 Grade 8617	SAE	USA
A 1031 Grade 8620	SAE	USA
A 1031 Grade 8630	SAE	USA
A 1031 Grade 8640	SAE	USA
A 1031 Grade 8642	SAE	USA
A 1031 Grade 8645	SAE	USA
A 1031 Grade 8650	SAE	USA
A 1031 Grade 8655	SAE	USA
A 1031 Grade 8660	SAE	USA
A 1031 Grade 8720	SAE	USA
A 1031 Grade 8735	SAE	USA
A 1031 Grade 8740	SAE	USA
A 1082 Grade 31803	SAE	USA
A 213 18Cr-2Mo	SAE	USA
A 803 Grade 18-2	SAE	USA
A 872 J93183	SAE	USA
B 863 Grade 18	SAE	USA
E 318	AMS	USA
E 318	International	USA
E 4318	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
Ni	13.00	15.00
Cr	17.00	19.00
Al
Cu
Ti
Fe
N
Mo	1.75	2.75
V

Mechanical Properties

Tensile strength	955～914	σb/MPa
Yield Strength	937	σ 0.2 ≥/MPa
Elongation	48	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	270～457	-
HRC	30	-

Physical Properties

Thermal expansion	42-39	e-6/K
Thermal conductivity	65-69	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7476-4205	째C
Density	9212-4719	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)
ER 318 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