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ASTM634 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM634

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ASTM ASTM634

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This page is mainly introduced the ASTM634 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ASTM634,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ASTM634

Steel Garde:ASTM634
Type:Stainless Steels
Country:USA
Standard:ASTM
Application:ASTM634

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 564 S35500	SAE	USA
A 693 S35500	SAE	USA
A 705 S35500	SAE	USA
S35500	AISI	USA
SA-564 S35500	AMS	USA
SA-693 S35500	AMS	USA
SA-705 S35500	AMS	USA
A 564 S35500	SAE	USA
A 693 S35500	SAE	USA
A 705 S35500	SAE	USA
S35500	AISI	USA
SA-564 S35500	AMS	USA
SA-693 S35500	AMS	USA
SA-705 S35500	AMS	USA
A 564 634	SAE	USA
A 693 Type 634	SAE	USA
A 705 634	SAE	USA
A 959 Type 634	SAE	USA
AISI634	AISI	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.10	0.15
Si		0.50
Mn	0.50	1.25
P		0.04
S		0.03
Cr	15.0	16.0
Ni	4.00	5.00
Mo	2.50	3.25
N	0.07	0.13

Mechanical Properties

Tensile strength	182～189	σb/MPa
Yield Strength	720	σ 0.2 ≥/MPa
Elongation	88	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	872～402	-
HRC	30	-

Physical Properties

Thermal expansion	70-21	e-6/K
Thermal conductivity	44-35	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0335-7542	째C
Density	1107-5033	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)
ASTM634 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