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不銹鋼知識(shí)
(AUSTENITE) 321

Chemical&Properties

Specification

Grade

(wt%)Chemical Composition(wt%)

C

Mn

Ni

Cr

Ti

ASTM

321

≤0.08

≤2.00

9.00~12.00

17.00~19.00

5(C+N)-0.70

JIS

SUS 321

≤0.08

≤2.00

9.00~13.00

17.00~19.00

≥5C

GB

06Cr18Ni11Ti

≤0.08

≤2.00

9.00~12.00

17.00~19.00

2.00~3.00

Mechanical&Physical Properties

 

Specification

 

Grade

Mechanical Property

Physical Property

Y.S.
(N/mm2)

T.S.    (N/mm2)EL(%)

Hardness
(HRB)Specific HEAT
(J/g℃)

Modulus of Elasticity
(KN/mm2)

Coefficient of Heat Expansion
10-6cm/cm/℃
(20-100℃)

Thermal
Conductivity
W/m℃(100℃)

JIS

SUS 312

≥205

≥520

≥40

≤90

0.5

193

16.6

16.1

ASTM/GB

312L/06Cr18Ni11T

≥205

≥515

≥40

≤95

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