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Grade 1300 M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Grade 1300 M

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UNS Grade 1300 M

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This page is mainly introduced the Grade 1300 M chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Grade 1300 M,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Categorization and properties of dent resistant, high strength, and ultra high strength automotive sheet steel

Steel Garde:Grade 1300 M
Type:Stainless Steels
Country:USA
Standard:UNS

Standard Number:

ITEM	Standard Number	Descriptions
1	SAE J 2340 (1999)	Categorization and properties of dent resistant, high strength, and ultra high strength automotive sheet steel

Metallographic Structure:Precipitation-Hardening
Application:Categorization and properties of dent resistant, high strength, and ultra high strength automotive sheet steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
300M	UNS	USA
A 646 Grade 300M	SAE	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）	Similar	Remarks
C		0.40
Si		1.60
Mn		0.75
P
S
Ni		0.40
Cr		1.85
Al
Cu
Ti
Fe		remaining
N
Mo
V		0.08

Mechanical Properties

Tensile strength	244～200	σb/MPa
Yield Strength	371	σ 0.2 ≥/MPa
Elongation	14	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	345～461	-
HRC	30	-

Physical Properties

Thermal expansion	86-85	e-6/K
Thermal conductivity	13-62	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7601-6369	째C
Density	8479-3940	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)
Grade 1300 M 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