technický list výrobku

zkratka označení: NR*bezešvá trubka EN 10216-5

tol. dle EN/ISO 1127

Art.-Nr.kgsD

NR-030-020

NR-030-016

NR-028-035

NR-026-032

NR-026-026

NR-026-023

NR-025-050

NR-025-020

NR-022-020

NR-021-026

NR-021-020

NR-020-030

NR-020-020

NR-020-015

NR-018-045

NR-018-020

NR-018-010

NR-017-023

NR-017-018

NR-016-020

NR-016-016

NR-015-020

NR-015-015

NR-014-020

NR-013-026

NR-013-023

NR-012-029

NR-012-020

NR-012-015

NR-010-020

NR-010-025

NR-010-010

NR-008-015

NR-008-010

NR-006-010

NR-004-010

1,402

1,140

2,147

1,899

1,582

1,420

2,512

1,152

1,002

1,217

0,967

1,277

0,901

0,695

1,526

0,801

0,426

0,858

0,696

0,701

0,545

0,651

0,509

0,601

0,710

0,645

0,661

0,501

0,394

0,333

0,470

0,225

0,224

0,175

0,125

0,075

2,0

1,6

3,5

3,2

2,6

2,3

5,0

2,0

2,0

2,6

2,0

3,0

2,0

1,5

4,5

2,0

1,0

2,3

1,8

2,0

1,6

2,0

1,5

2,0

2,6

2,3

2,9

2,0

1,5

2,0

2,5

1,0

1,5

1,0

1,0

1,0

30,0

30,0

28,0

26,9

26,9

26,9

25,0

25,0

22,0

21,3

21,3

20,0

20,0

20,0

18,0

18,0

18,0

17,2

17,2

16,0

16,0

15,0

15,0

14,0

13,5

13,5

12,0

12,0

12,0

10,2

10,0

10,0

8,0

8,0

6,0

4,0

1/10vytvořeno 11.01.2021 21:35

Art.-Nr.kgsD

NR-219-100

NR-219-063

NR-168-071

NR-168-050

NR-159-080

NR-159-045

NR-159-040

NR-139-050

NR-139-040

NR-133-040

NR-114-036

NR-108-050

NR-108-040

NR-088-080

NR-088-040

NR-076-050

NR-076-036

NR-076-029

NR-060-080

NR-060-050

NR-060-040

NR-060-036

NR-060-030

NR-060-029

NR-050-050

NR-048-050

NR-048-040

NR-048-032

NR-048-026

NR-042-050

NR-042-032

NR-038-050

NR-038-026

NR-035-050

NR-033-036

NR-033-032

NR-033-020

NR-030-040

NR-030-030

52,390

33,677

28,710

20,445

30,260

17,400

15,570

16,864

13,592

12,921

9,979

12,896

10,417

16,250

8,504

8,889

6,535

5,315

10,470

6,920

5,640

5,111

4,304

4,168

5,634

5,421

4,440

3,614

2,975

5,165

3,140

4,132

2,320

3,756

2,713

2,444

1,588

2,604

2,028

10,0

6,3

7,1

5,0

8,0

4,5

4,0

5,0

4,0

4,0

3,6

5,0

4,0

8,0

4,1

5,0

3,6

2,9

8,0

5,0

4,0

3,6

3,0

2,9

5,0

5,0

4,0

3,2

2,6

5,0

3,2

5,0

2,6

5,0

3,6

3,2

2,0

4,0

3,0

219,1

219,1

168,3

168,3

159,0

159,0

159,0

139,7

139,7

133,0

114,3

108,0

108,0

88,9

88,9

76,1

76,1

76,1

60,3

60,3

60,3

60,3

60,3

60,3

50,0

48,3

48,3

48,3

48,3

42,4

42,4

38,0

38,0

35,0

33,7

33,7

33,7

30,0

30,0

Montážní materiál › trubky › kulaté › bezešvé › speciální materiály › žáruvzdorné

dostupné jakosti: 1.4841

2/10vytvořeno 11.01.2021 21:35

30.0-34.0

19.0-22.0

19.0-22.0

11.0-13.0

9.0-12.0

Ni %

19.0-23.0

24.0-26.0

24.0-26.0

19.0-21.0

17.0-19.0

Cr %

0.15-0.6

Al %

0.020

0.030

0.030

0.030

0.030

S max

0.030

0.045

0.045

0.045

0.045

P max

2.0

2.0

2.0

2.0

2.0

Mn max.

≤1.0

1.5-2.5

≤0.75

1.5-2.5

≤1.0

Si %

≤0.12

≤0.20

≤0.15

≤0.20

≤0.12

C %

1.4876

1.4841

1.4845

1.4828

1.4878

Material

Table 2

Chemical Composition

1100°C

1150°C

1050°C

1000°C

850°C

Temperature*

1.4876

1.4841

1.4845

1.4828

1.4878

Material

X 10 NiCrAlTi 32 20

X 15 CrNiSi 25 20

X 12 CrNi 25 21

X15 CrNiSi 20 12

X12 CrNiTi18 9

Type of Steel

Table 1

Scaling Resistance in the Air

using any test method.

resistance depends enormously on the reaction conditions and cannot be determined

molten salt and metal at temperatures above approximately 550°C. The level of their

and with special resistance to the effects of hot gases and combustion products as well as

loading due to their higher alloy content of chromium, nickel, silicon, and aluminum

Heat-resistant steels are steels possessing good mechanical properties for short and long-term

Characteristics of heat-resistant steels

In the form of pipes, they are used in the construction of heat exchangers, for example.

Heat-resistant steels were specially developed for use at high temperatures.

Pipes made of austenitic, heat-resistant steels

vytvořeno 11.01.2021 21:35 3/10

to that during carburization.

For reductive combustion gases containing nitrogen, the behavior of the steel is similar

.....

sensitive than the corresponding ferritic chromium steels.

The austenitic chromium-nickel steels, especially those with a high nickel content, are less

element as a mixed crystal, which is indicated by a reduced scaling resistance.

steels can occur. In this case, bonding with chromium can result in the depletion of this

When exposed to incompletely combusted gases, carburization of the heat-resistant

....

above the nickel-nickel sulfide eutectic point, which is approx. 640°C.

due to the formation of sulfide. Alloys with high nickel contents can exhibit strong scaling

In complete combusted, sulfurous gases, though, the scaling limit is significantly reduced

when a surplus of air is available.

In combustion gases containing sulfur, there is no significant impact on the scaling resistance

...

100 to 200°C must be taken into account depending on the composition of the gas.

lower. For completely combusted, sulfur-free gases, a reduction of the scaling resistance by

sulfur-free combustion gases. For high water vapor contents, the actual scaling limit may be

The scaling limit temperatures specified in Table 1 apply to air and are an approximation for

..

on the prevailing conditions and may have correspondingly different reaction rates.

a technical standpoint. The reactions can occur individually or simultaneously depending

other solid or molten deposits are particularly important for the scaling resistance from

Oxidation, sulfurization, carburization, nitrogenization, and reactions with ashes and

.

Additional additives, especially of aluminum and silicon, provide additional protection.

protective top layer consisting primarily of chromium oxide.

The scaling resistance the high-alloyed chromium-nickel steels is achieved using a

vytvořeno 11.01.2021 21:35 4/10

(*)=Manufacturer's Code Schöller-Bleckmann Böhler

H500

H525

H522

H550

A700

SBB*

ChN 32 T

20 Ch 25 N 20 S

-

20 Ch 20 N 14 S

12 Ch 48 N 10 T

GOST

-

X 16 CrNiSi 25 2

X 22 CrNi 25 20

-

X 6 CrNiTi1811

UNI

Z 8 NC 32-21

Z 12 CNS 25-20

Z12 CN 25-20

Z15 CNS 20-12

Z 6 CNT 18-10

AFNOR

-

314

310S

309

321

AISI

1.4876

1.4841

1.4845

1.4828

1.4878

Material

Table 3

Comparison of Standards

use the creep strength and elongation time values provided in Table 4.

material creeps when stressed. When calculating for systems, you must

Heat-resistant steels are generally used at temperatures at which the

..

expect a stronger reaction.

may condense. If this condensate contains sulfurous acid or sulfuric acid, then you must

When starting up and shutting down systems and during downtimes, combustion products

.

Nickel and silicon Improve the carburization resistance.

improve resistance against sulfidation.

Sulfidation is increased the most by hydrogen sulfide. Aluminum and silicon

alkaline sulfates, phosphates, metals and/or heavy metal oxides are present.

composition of the deposits and are generally very low, for example like when

the material. The permissible temperature limits depend greatly in this case on the

due to reaction with the scale layer, which quickly leads to the destruction of

For deposits from the combustion gases, low-melting eutectics can form on the steel

vytvořeno 11.01.2021 21:35 5/10

The Ω phase can be dissolved again by annealing at temperatures > 900°C.

while Ni and Al hinder them. The Ω phase is only relevant in actual practice for 1.4821 and 1.4841.

brittle after cooling down to room temperature. Si and Cr promote these precipitation processes,

changes to the ductility at operating temperatures, but that can cause the material to become

between iron and chromium and other transition metals that do not exhibit any non-permissible

range from 550 to 900°C. The Ω phase is a brittle, intermetallic compound

In austenitic steels with higher Cr content, the Ω phase can form the temperature

(**)=The values apply to sample thicknesses ≥ 3 mm.

(*)=0.2% elastic limit

The values apply to cold formed pipes with wall thicknesses of 0.5 to 5 mm

min. 30%

min. 30%

min. 35%

min. 30%

min. 40%

(L0=5Da longitudinal

Fracture Elongation

500-750

550-800

500-750

500-750

500-750

(N/mm²)

Tensile Strength

min. 210

min. 230

min. 210

min. 230

min. 210

(N/mm²)

Elastic Limit*

139-190

150-210

130-190

150-210

130-190

(HB)

Hardness

1.4876

1.4841

1.4845

1.4828

1.4878

(Material)

Type of Steel

Table 4

Mechanical Properties

temperature is generally not affected by this.

lead to a reduction of the ductility. The behavior of the material at the operating

certain temperature ranges that, after cooling down to room temperature, can

When using heat-resistant steels, you must expect changes in the material in

vytvořeno 11.01.2021 21:35 6/10

(*)=The stress, based on the initial diameter, that leads to breakage after 1,000, 10,000 or 100,000 h.

4 N/mm²

19

47

114

3

7

18

80

3

7.5

16

65

10

22

65 N/mm²

for 100,000h

11 N/mm²

30

68

152

8.5

18

40

160

8.5

18

36

120

20

45

115 N/mm²

for 10,000h

20 N/mm²

45

90

200

15

35

80

230

15

35

75

190

35

80

185 N/mm²

for 1,000h

900 °C

800 °C

700 °C

600 °C

900 °C

800 °C

700 °C

600 °C

900 °C

800 °C

700 °C

600 °C

800 °C

700 °C

600 °C

Temperature

1.4876

1.4841

1.4828

1.4878

Material

Table 6

Creep Strength*

after 1,000 or 10,000 h

(*)=The stress, based on the initial diameter, that leads to a permanent elongation of 1%

5 N/mm²

15

40

90

5.7

12

37

105

4

10

25

80

10

30

85 N/mm²

for 10,000h

13 N/mm²

30

70

130

10

23

53

150

8

20

50

120

15

45

110 N/mm²

for 1,000h

900 °C

800 °C

700 °C

600 °C

900 °C

800 °C

700 °C

600 °C

900 °C

800 °C

700 °C

600 °C

800 °C

700 °C

600 °C

Temperature

1.4876

1.4841

1.4828

1.4878

Material

Table 5

1% Elastic Limit*

Characteristic values of the long-term behavior at high temperatures

vytvořeno 11.01.2021 21:35 7/10

(***)=Specific electrical resistance for (O x mm²) : m

(**)=J : (g x °C)

(*)=g/cm³

1.00

0.90

0.85

0.85

0.75

p***

0.50

0.50

0.50

0.50

0.50

Specific Heat**

8.0

7.9

7.9

7.9

7.9

Density*

1.4876

1.4841

1.4845

1.4828

1.4878

Material

Table 9

Other Characteristic Values

(W) : (cm x °C)

0.19

0.19

0.19

0.21

0.21

500°C

0.12

0.14

0.14

0.15

0.15

20°C

1.4876

1.4841

1.4845

1.4828

1.4878

Material

Table 8

Thermal Conductivity

(10 ⁶ mm) : (m x °C)

18.50

19.00

19.00

19.50

-

...1000°C

17.50

18.00

18.00

18.50

19.00

...800°C

16.00

17.00

17.00

17.50

18.00

...400°C

1.4876

1.4841

1.4845

1.4828

1.4878

Material

Table 7

Average linear coefficient of expansion between 20°C and ...

Physical Properties

vytvořeno 11.01.2021 21:35 8/10

and cutting speed.

requires the use of sharper tools and the correct specification of the cutting depth

make the use of dull tools or machining at the cutting depth more difficult,

their low thermal conductivity. Its strong cold hardening behavior, which can

When machining austenitic steels, adequate cooling must be ensured due to

.....

in air or inert gas.

In solution annealing, the steel is cooled in water or air, and for thinner walls,

In terms of cutting operations over the quenched state.

Annealing the austenitic steels at 900°C air temperature offers advantages

....

effects can be undone through subsequent heat treatment with fast quenching.

cold forming properties. After very strong deformation, the resulting cold hardening

Due to their low yield strength and high elasticity, austenitic steels have good

...

austenitic steels. The hot forming temperature is 1150 - 800°C

It should only be necessary in a few cases for the user to hot-form the heat-resistant

..

due to its tendency to become brittle in the Ω phase.

The material 1.4841 should not be used in continuous operation at temperatures below 900°C

and nitrogenization in comparison to ferritic steels.

non-oxidizing atmospheres. On the other hand, they have better resistance to carburization

Due to the NI content, these steels are more sensitive to sulfurous gases, especially in

.

600°C are comparatively high.

titanium and aluminum so that the long-term values for this material at temperatures over

The high temperature strength of the material 1.4876 is improved through the addition of

purposes in which a high mechanical strength is required in addition to scaling resistance.

in addition to their good scaling resistance. For this reason, they can generally be used for

Heat-resistant austenitic CrNi steels are characterized by a high temperature strength

Processing

vytvořeno 11.01.2021 21:35 9/10

heat-resistant pipes. Acceptance is performed according to Steel-Iron Material Data Sheet 470.

An acceptance test certificate according to DIN 50049/3.1 can be made available for the

Acceptance

welded pipes with dimensions and tolerances based on DIN 2462 and DIN 2463.

We supply seamless hot-rolled and cold-processed pipes made of heat-resistant steels as well as

Product Range

2.4806/2.4807

1.4842

1.4842

1.4829

1.4551/1.4829

Electrode or Welding Rod

1.4876

1.4841

1.4845

1.4828

1.4878

Base Metal

Table 10

Filler Metals

Preheating and heat treatment after welding is generally unnecessary.

Sulfurous oven gases, due to the formation of low-melting corrosion products.

Welding slag must be removed. Its presence will lead to high removal rates, especially for

over gas fusion welding.

suitable for welding using all of the known methods. However, arc welding should be preferred

The heat-resistant austenitic steels are, assuming the corresponding qualifications are available,

Welding

vytvořeno 11.01.2021 21:35 10/10