EN 1.4835, ASTM UNS S30815 Stainless Steel

EN 1.4835, ASTM UNS S30815 Stainless Steel

EN 1.4835, ASTM UNS S30815 Stainless Steel General Characteristics EN 1.4835/ASTM UNS S30815 is a stainless steel with excellent oxidation and creep resistance in cyclic conditions that is best employed in temperatures up to 1150 °C/2100 °F. There is a slight susceptibility to embrittlement...
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EN 1.4835, ASTM UNS S30815 Stainless Steel

General Characteristics

EN 1.4835/ASTM UNS S30815 is a stainless steel with excellent oxidation and creep resistance in cyclic conditions that is best employed in temperatures up to 1150 °C/2100 °F. There is a slight susceptibility to embrittlement during continuous operation at 600–850 °C/1110–1560 °F.


Typical Applications

  • Oil industry equipment

  • Conveyor belts

  • Refractory anchors

  • Expansion bellows

  • Radiant tubes, tube shields, and valves and flanges

  • Rotary kilns

  • Exhaust manifolds

  • Power generation applications

  • Cyclone dip tubes

  • Impact separators

  • Bell furnaces and muffle furnaces

  • Automotive components

  • Heat treatment trays

  • Dampers

  • Recuperator tubes for the steel industry

  • Large-scale bakery ovens


Chemical Composition

The typical chemical composition for this grade is given in the table below, together with composition limits given for the product according to different standards. The required standard will be fully met as specified on the order.

The chemical composition is given as % by mass.


CMnCrNiMoNOther

Typical

0.09


21.0

11.0


0.17

Si:1.6 Ce:0.05

ASME II A SA-240

0.05-0.10

≤0.80

20.0-22.0

10.0-12.0


0.14-0.20

Si:1.4-2.0 Ce:0.03-0.08

ASTM A240

0.05-0.10

≤0.80

20.0-22.0

10.0-12.0


0.14-0.20

Si:1.40-2.00 Ce:0.03-0.08

EN 10095

0.05-0.12

≤1.00

20.00-22.00

10.00-12.00


0.12-0.20

Si:1.40-2.50 Ce:0.03-0.08

IS 6911

0.05-0.10

≤0.80

20.0-22.0

10.0-12.0

≤0.70

0.14-0.20

Si:1.40-2.00 Ce:0.03-0.08


Mechanical Properties

The mechanical strength at elevated temperatures for EN 1.4835 are presented in the table below (minimum values).

º C

50

100

150

200

250

300

350

400

450

500

550

600

700

Rp0.2 [MPa]

280

230

198

185

176

170

165

160

155

150

145

140

130

Rm [MPa]

630

585

560

545

538

535

533

530

515

495

472

445

360


At higher temperatures, the creep strength is the dimensioning factor. Creep deformation strength and creep rupture strength for EN 1.4835 are presented in the table below. Values are according to EN 10095.

º C

500

550

600

650

700

750

800

850

900

950

1000

1050

1100

Creep rupture strength Rkm,10 000 [MPa]

-

250

157

98

63

41

27

18

13

9.5

7

5.5

4

Creep rupture strength Rkm, 100 000 [MPa]

-

160

88

55

35

22

15

11

8

5.5

4

3

2.3

Creep deformation strength RA1,10 000 [MPa]

-

230

126

74

45

28

19

14

10

7

5

3.5

2.5

Creep deformation strength RA1, 100 000 [MPa]

-

150

80

45

26

16

11

8

6

4.5

3

2

1.2


Mechanical properties at room temperature are shown in the table below.

StandardRp0.2Rp1.0RmElongationRockwellHB

MPa

MPa

MPa

%



Product type: Cold rolled coil and sheet

Typical (thickness 1 mm)

415

450

750

65



ASME II A SA-240

≥ 310


≥ 600



≤ 217

ASTM A240

≥ 310


≥ 600


≤ 95HRB

≤ 217

EN 10095

≥ 310

≥ 350

650-850

≥ 40



IS 6911

≥ 310


≥ 600


≤ 95HRB

≤ 217

Product type: Hot rolled coil and sheet

Typical (thickness 4 mm)







ASME II A SA-240

≥ 310


≥ 600



≤ 217

ASTM A240

≥ 310


≥ 600



≤ 217

EN 10095

≥ 310

≥ 350

650-850

≥ 40



IS 6911

≥ 310


≥ 600


≤ 95HRB

≤ 217

Product type: Hot rolled quarto plate

Typical (thickness 15 mm)

370

410

700

50



ASME II A SA-240

≥ 310


≥ 600


≤ 95HRB

≤ 217

ASTM A240

≥ 310


≥ 600


≤ 95HRB

≤ 217

EN 10095

≥ 310

≥ 350

650-850

≥ 40



IS 6911

≥ 310


≥ 600


≤ 95HRB

≤ 217

Product type: Wire rod

Typical

370

410

700

50




Physical Properties

Data according to EN 10088

DensityModulus of elasticityThermal exp. at 100 °CThermal conductivity

kg/dm3

GPa

10-6/°C

W/m°C

7.8

200

17,0

15


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