Table 1 Chemical compositions of the welds

From: Ultrastrong and ductile steel welds achieved by fine interlocking microstructures with film-like retained austenite

GIGA steel weld

Chemical composition, wt.%

Alloy cost (USD/ton)

C

Si

Mn

Al

Ni

Nb

Cr

Ti, Mo

1.2 GPa H-Nb

(1.2 GPa H-Nb/L-Ni)

0.12

0.28

2.3

0.033

0.01

0.035

0.64

added

243

1.2 GPa H-Ni

(1.2 GPa H-Ni/L-Nb)

0.11

0.37

2.2

0.039

1.13

0.016

0.30

458

1.0 GPa H-Nb

(1.0 GPa H-Nb/L-Ni)

0.08

0.59

1.85

0.016

0.01

0.038

0.73

302

1.0 GPa H-Ni

(1.0 GPa H-Ni/L-Nb)

0.08

0.72

1.83

0.013

1.44

0.010

0.34

540

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