Steel

f_i & a_i

Cr

Ni

Mo

W

Mn

Si

V

P

S

N

A

f_i

0.902

1.042

0.929

0.893

0.943

1.405

1.509

1.146

1.121

0.859

a_i

2.092

2.439

0.301

1.080

0.659

0.996

0.113

0.031

0.027

0.011

B

f_i

0.910

1.041

0.939

0.902

0.949

1.418

1.661

1.215

1.152

0.947

a_i

1.429

3.405

0.283

1.317

0.572

1.109

0.120

0.033

0.022

0.019

C

f_i

0.910

1.040

0.938

0.903

0.949

1.451

1.874

1.182

1.148

0.868

a_i

2.185

2.591

0.304

1.210

0.537

1.296

0.163

0.031

0.029

0.017

D

f_i

0.941

1.029

0.961

0.935

0.965

1.287

1.402

1.079

1.085

0.914

a_i

1.628

4.571

0.300

1.243

0.395

0.658

0.094

0.026

0.024

0.020

E

f_i

0.952

1.021

0.973

0.952

0.972

1.218

1.373

1.029

1.024

0.834

a_i

1.971

3.174

0.295

1.019

0.669

0.576

0.071

0.025

0.019

0.017

F

f_i

0.939

1.017

0.977

0.950

0.966

1.281

1.905

1.043

1.059

0.738

a_i

3.287

1.028

0.443

1.700

0.316

1.122

0.160

0.031

0.024

0.024