DIN2393 Welded Precision Steel Tube for automobile parts

Grade

Chemical Composition (%)

Steel Name

Steel Number

C(Max)

Si(Max)

Mn(Max)

P(Max)

S(Max)

Cr

NI

Cu

Mo

V

E155

1.0033

0.11

0.35

0.70

0.03

0.025

-

-

-

-

-

E195

1.0034

0.15

0.35

0.70

0.03

0.025

-

-

-

-

-

E235

1.0308

0.17

0.35

1.20

0.03

0.025

E275

1.0225

0.21

0.35

1.40

0.03

0.025

E355

1.0580

0.22

0.35

1.60

0.03

0.025

Steel Grade

Minimum values for the delivery condition

Steel Name

Steel Number

(+C c )

(+LC c )

(+SR)

(+A d )

(+N)NBK

Rm Mpa

A%

Rm Mpa

A%

Rm Mpa

ReH Mpa

A%

Rm Mpa

A%

Rm Mpa

ReH e Mpa

A%

E155

1.0033

400

6

350

10

350

245

18

260

28

28

270-410

155

E195

1.0034

420

6

370

10

370

260

18

290

28

28

300-440

195

E235

1.0308

490

6

440

10

440

325

14

315

25

25

340-480

235

E275

1.0225

560

5

510

8

510

375

12

390

21

21

410-550

275

E355

1.0580

640

4

590

6

590

435

10

450

22

22

490-630

355

A Rm: tensile strength; ReH: upper yield strength; A: elongation after fracture
B 1Mpa=1N/mm 2
C Depending on the degree of cold work in the finishing pass the yield strength may nearly be as high as the tensile strength.
D For calculation purposes the following relations are recommended:
For delivery condition +C: ReH≥ 0.8Rm for delivery condition +LC: ReH≥ 0.7Rm
E For calculation purposes the following relation is recommended: ReH≥ 0.5Rm
F For tubes with outside diameter≤ 30mm and wall thickness≤ 3mm the ReH minimum values are 10Mpa lower than the values given in this table.