NK Grade KL33 (Japan / NKK) Material Properties

Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: Japan / NKK

Data updates

Latest Update: 2021-11
Total number of updates: 1
Update History:

Mechanical Properties

Temperature

≤ 0°C
0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 325 MPa view details
Tensile Strength 440 — 560 MPa view details
Elongation, A 12 % view details
Impact Energy val1
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J view details
Yield Strength, Rp0.2 47.1 ksi view details
Tensile Strength 63.8 — 81.2 ksi view details
Elongation, A 12 % view details
Impact Energy val1
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ft·lb view details

Physical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.67 — 7.86 kg/dm³ view details
Poisson Coefficient 0.27 — 0.3 view details
Modulus of Elasticity 27.6 E+03 — 30.5 E+03 ksi view details
Density 0.277 — 0.284 lb/in³ view details
Poisson Coefficient 0.27 — 0.3 view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.14
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Ceq
VALUE
≤ 0.41
UNIT
%
CAS NUMBER
CRITERIA
Mn
VALUE
0.70 – 1.60
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

Rules for the Survey and Construction of Steel Ships, Part K - Materials, Chapter 3 Section 4; Rolled Steels; Rolled Steels for Low Temperature Service / Nippon Kaiji Kyokai (Class NK) / 2021

Heat Treatments

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