United States · ASME

SB-463 N08020

ASME SB-463

Chemical composition

wt% · log scale

min – max range
typical value

Mechanical properties

value range by condition

High / low temperature

value vs. temperature

Plates annealed · Yield strength Rp0.2
Plates annealed · Tensile strength Rm

Physical properties

vs. temperature

Elastic modulus GPa

Thermal conductivity W/(m·K)

Chemical composition

Element	min	max	Remarks
C		0.07
Cr	19	21
Cu	3	4
Fe			Bal
Mn		2
Mo	2	3
Nb+Ta		1	> 8 x %C
Ni	32	38
P		0.045
S		0.035
Si		1

Mechanical properties

Heat treatment / condition	Yield strength	Tensile strength	Elongation	Hardness
heavy plate, steel strip, Solution annealed, >= 4.75 mm +P; < 4.75 mm +S +P - plates; +S - sheets, strips, sheet	241.00	551.00	30.00
heavy plate, steel strip, Solution annealed, >= 4.75 mm +P; < 4.75 mm +S +P - plates; +S - sheets, strips, HB				薄板
heavy plate, steel strip, Solution annealed, >= 4.75 mm +P; < 4.75 mm +S +P - plates; +S - sheets, strips, HR				薄板

Physical properties

Temperature

-200.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
207.00

-125.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
202.00

-75.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
199.00

20.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
					8.05	0.31

25.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
193.00

50.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		12.20

75.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		12.70

100.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
189.00		13.10

125.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		13.50

150.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
186.00		13.90

175.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		14.30

200.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
184.00		14.70

225.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		15.20

250.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
181.00		15.60

275.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		16.00

300.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
179.00		16.50

325.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		16.90

350.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
176.00		17.40

375.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		17.80

400.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
173.00		18.20

425.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		18.60

450.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
170.00		19.00

475.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
		19.40

500.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
167.00		19.90

550.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
164.00

600.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
161.00

650.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
157.00

700.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
153.00

750.0

Elastic modulus	Mean thermal expansion	Thermal conductivity	Specific heat	Resistivity	Density	Poisson's ratio
150.00

High/low temperature

Yield strength Rp0.2 (MPa)

Condition	Temperature ℃	Approx.
Plates annealed	450	170
Plates annealed	425	174
Plates annealed	400	178
Plates annealed	375	179
Plates annealed	350	180
Plates annealed	325	182
Plates annealed	300	184
Plates annealed	275	186
Plates annealed	250	189
Plates annealed	225	193
Plates annealed	200	196
Plates annealed	175	200
Plates annealed	150	204
Plates annealed	125	208
Plates annealed	100	212
Plates annealed	65	221
Plates annealed	40	241
Plates annealed	-30	241

Tensile strength Rm (MPa)

Condition	Temperature ℃	Approx.
Plates annealed	450	526
Plates annealed	425	526
Plates annealed	400	526
Plates annealed	375	528
Plates annealed	350	530
Plates annealed	325	533
Plates annealed	300	533
Plates annealed	250	533
Plates annealed	200	536
Plates annealed	150	546
Plates annealed	100	551
Plates annealed	40	552
Plates annealed	-30	552

Similar grades

Grade	Region	System
Carpenter 20Nb3	Global	Enterprise standard
Nicrofer 3620 Nb - alloy 20	Germany	VDM
N08020	United States	UNS
SB-729 N08020	United States	ASME
SB-473 N08020	United States	ASME
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SB-464 N08020	United States	ASME
SB-462 N08020	United States	ASME