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202 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 202

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YB 202

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This page is mainly introduced the 202 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 202,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
AISI 202

Steel Garde:202
Type:Stainless Steels
Country:USA
Standard:YB

Standard Number:

ITEM	Standard Number	Descriptions
1	A 213/A 213M (2011)	Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
2	A 240/A 240M (2012)	Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications
3	A 249/A 249M (2010)	Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes
4	A 276 (2010)	Stainless Steel Bars and Shapes
5	A 314 (2008)	Stainless Steel Billets and Bars for Forging
6	A 473 (2009)	Stainless Steel Forgings
7	A 959 (2011)	Standard Guide for Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
8	SAE AMS-QQ-S-763B (1998)	Steel, Corrosion Resistant, Bars, Wire, Shapes, and Forgings
9	SAE J 405 (1998)	Chemical compositions of SAE wrought stainless steels

Metallographic Structure:Austenite
Application:Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
ASTM 202	SAE	USA
S20200	YB	USA
A 895 S42020	SAE	USA
S42020	AISI	USA
A 582 S42023	SAE	USA
A 895 S42023	SAE	USA
S42023	AISI	USA
A 582 S42023	SAE	USA
A 895 S42023	SAE	USA
S42023	AISI	USA
SUS 202	JIS	Japan
SUS 202	JIS	Japan
SUS 202	JIS	Japan
202S16	B.S.	UK
2HR202	B.S.	UK
STS202	KS	Korea
CNS 202	CNS	China

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.15
Si		1.00
Mn	7.50	10.0
P		0.06
S		0.03
Cr	17.0	19.0
Ni	4.00	6.00
N		0.25

Mechanical Properties

Tensile strength	896～927	σb/MPa
Yield Strength	707	σ 0.2 ≥/MPa
Elongation	16	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	278～896	-
HRC	30	-

Physical Properties

Thermal expansion	13-58	e-6/K
Thermal conductivity	46-72	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1387-9248	째C
Density	4939-5094	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)
202 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