Smithells Metals Reference Book Part 14 pps

Mechanical properties of titanium and titanium alloys 22-89 Table 2238 mANIUM ALLOYS - TYPICAL CREEP PROPERTIES Nominal Stnm MPa to produce 0.1% total p h t k strain in... 22-90 Table

Mechanical properties of titanium and titanium alloys 22-89

Table 2238 mANIUM ALLOYS - TYPICAL CREEP PROPERTIES

Nominal Stnm MPa to produce 0.1% total p h t k strain in

22-90

Table 2238 ‘ITAN~UM ALLOYS - TypIcAL CREW PRoPFRTIEs ( c o n r i d )

Nominal

Mechanical properties of metals and alloys

Stress Mpa to produce 0.1% total plastic strain in

IMI 115 Commercial Annealedrod Room 354

Mechanical properfies of titanium md titanium alloys 22-91

Table 22.39 TITANIUM AND “IANlUM ALLOYS - TYPlCAL FATIGUE PRoPERllEs (w&md)

Endurance h i r

Direct stress (Zero

Annealed rod

Annealed rod

Room Room mom

room

room

400

Room Room

mean) Smooth Kt = 1 Notched Kr = 3.3

Rotating bend Smooth Kt = 1.0 Notched Kt = 2.0 Notched Kr = 3.3

Direct stress (Zero

-an)

smooth Kt = 1.0 Notched Kr t 1.5 Notched Kt 2.0 Notched Kt = 3.3 Rotating bend Smooth Kg = 1 Notched Kt = 2.7 Direct stress G?.ro

continued overleaf

22-92 Mechanical properties of metals and alloys

Table 22.39 TITANIUM AND TITANIUM W O Y S - TYPICAL FATIGUE PROPJiRTIES (continued)

Endumnce limit

SmoothKt=l

Notched Kt = 2.4

Rotating bend

smwth Kt = 1 Notched K t = 3.2

Rotating bend

smooth K t = 1.0 smooth K t = 1.0

smth Kt = 1.0 Smooth K t = 1.0 smooth Kt = 1.0

Notched Kt = 3 3

Rotating bend smooth Kt = 1

smooth Kt = 1 Notched Kt = 3.5

0+640 0+220 0-460

h 2 1 0

Mechanical properties of titanium and titanium alloys 22-93

Table 22.39 TITANIUM AND TITANRTM ALLOYS - TYPICAL FATIGUE F'ROF'ERTIES (mntinrrul)

Endurance limit

Direct stress (Zero minimum)

*Limits for 108 cycles

Table 22.40 IZOD W A C T F'ROF'ERTJES OF TlTANRTM AND TITANlUM ALLOYS

IMI 317 Sn 5.0 Annealed 17.6 20.3 27.1 35.2 528 63.7 70.5 71.8 IMI 318 AI AI 6.0 2 5 A&ed md (13) 13.5 (1s) 14.9 ( ~ 0 ) 20.3 (w 25.7 (39) 40.6 ( 4 9 65.0 (52) 83.5 (53) 92.0

IMI 551 Al 4.0 Fully heat- 13.5 19 20.3 21.7 24.4 26.5

*BSS 131 (1) 0.45 in diameter suaigbt notched test pieces fkod valnes of armmedal purity titanium arc appreciably affected by

variation in hydrogen conlent within cornmeaxial limits (0.008% maximum) in 'li 130 rod

22-94

22.7 Mechanical properties of zinc and zinc alloys

Mechanical properties of metals and alIoys

Table 2241 MECHANICAL PROPERTIES OF ZINC ALLOYS AT ROOM TEMPERATURE

Zinc Unalloyed zinc is generally used only in the wrought

form The data here are some typical values

Total Pb+

(max) direction direction

These alloys are used principally in pressure die castings and other castings Properties are given in Table 26.36 page 26-61 Casting and foundry data

22.8 Mechanical properties of zirconium and zirconium alloys

Table 22d2 MECHANICAL PROPERTIES OF ZIRCONIUM ALLOYS AT ROOM TEMPERATURE

>99.9% purity Crystal bar, 1@3-130

Impurities in cold rolled

ppm by wt and vacuum

0,65, N,15, annealed 2 h

H,12, Hf 35, at 750°C

Ni 20

299.6% purity Sheet material, 250-310

Impurities in cold rolled in r.d

Nb 2.55% Plate, hot rolled 470

Impurities in at 750°C later for forged

2 in gauge 24gauge 150-500 4

un-

Mechanical properties of zirconium alloys 22-95

Table 22.42 MECHANlCAL PROPERTIES OF ZIRCDNIUM ALLOYS AT ROOM TEMPERATURE-continued

Zr 702 Commercially Annealed sheet 207 379 16 5T

REFERENCES TO TABLES 22.42 and 22.43

1 B J Gill Dept of Metallurgy and Materials Tech., University of Surrey, Guildford, England, 1972

2 W Evans and G W Parry, Electrochem Tech., 1966,4,225

3 Imperial Metal Industries pubn 2 Ed/MK105/33/366

4 J Winton and R Murgatroyd, Electrochem Teck, 358

2 2 9 6 Mechanical properties of metals and alloys

molten, relative softness, formability and readiness to form alloys with other met&

of its melting point on the absolute Temperature Scale This results in rather low mechanical strength at room temperature, as would be expected from any metal tested at a temperature

metals, only slight work hardening occurs initially in tin, followed by work-softening with further deformation due to grain growth A similar behaviour is found in tin-rich alloys The mechanical

properties recorded for tin-rich alloys are strongly dependent on impurity levels and the rate of strain

Within reasonable limits any tin-base alloy can be die cast successfully The choice of alloy,

PURE TIN-MECHANICAL PROPERTIES

Tensile strength (at 0.4 mm/mm min) at 20°C 14.5 MPa

Fatigue strength for 10’ reversals at 15°C

Elastic modulus (tension)

Impact strength

Note: Mechanical properties are very dependent on the rate of loading

Tin and its alloys 22-97

(at 280°C) (at 260°C) (at 280°C)

221

221 1.29

na

na

189

111 8.5

Specifications: B.S 219, ASTM B32, DIN 1707

TIN-RICH SOLDERS-MECHANICAL PROPERTIES (BULK)

29

20 4.5

Die cast Die cast

B

9

Annealed for Annealed for

1 h air cooled 1 h air cooled

Cold rolled, Cold rolled, 32% reduction 32% reduction

Chillcast 9.5 Annealed for

1 h air cooled

8 Cold rolled, 32% reduction

Ostalloy 338

Indalloy 100

Note: T m E strength, hardness, ete, are v n y dcpendcnt on thc rate of loading and casting wnditions

Properties are typical values

Tin and its alloys 22-99

FURTHER READING

A General

1 Tin and its Alloys’, E S Hedges, Edward h o l d , London, 1960

2 Tin and Uts Alloys and Compounds’, B T K Barry and C J Thwaites, Ellis Horwood Ltd, Chichester,

3 ‘Metals Handbook‘, 9th Edition, Vol 2, ‘Properties and Selection, Non Ferrous Alloys and Pure Metals’,

4 Goodfellow, ‘Materials for Research and Development’, Catalogue 8, 1987/88

8 Beoiing Alloys

1 ‘E:abbit Alloys for Plain Bearings’, International Tin Research Institute (ITRI), Publication No 149

2 ‘Developments in Plain Bearing Technology’, Tribologiu e Lubrificozione Vol 10, ~94,1975, HTRI Publication

3 ‘Materials for Plain Bearings‘, G C Pratt, International MefaNurgical Review, no 174, Vol 18, p62 1973

4 ‘Tribology Handbook‘, M J Neale, Butterworth, London, 1973

5 ‘Tin-Base Casting Alloys’, C J Evans, Engineering Morerials and Desqn, pf5, Aug, 1975

6 ‘Tin in Plain Bearings’, ITRI Publication no 595

C Pewter

1 ‘Working with Pewter’, ITRI Publication no 566

2 ‘Modern Pewter’, S Charron, Van Nostrand Rheinhold, New York, 1973

3 ‘The Techniques of Pewtersmithing’, C Hull and J Murrel, B.T Batsford Ltd., London, 1984

D Fusible Alloys

1: ‘Fusible Alloys Containing Tin’, ITRI Publication no 175

2 ‘The Properties of Tin Alloys’, ITRI Publication no 155

3 ‘Fusible Alloys for Industry’, C J Evans, Tin and its Uses, no 133, 1982, p10

4 ‘Fusible Alloys’, Engineering, 1981, 221(11), PPI

E Solder Alloys

1 ‘Soft Soldering Handbook’, ITRI Publication no 533

2 Solder Alloy Data’, ITRI Publication no 656

3 ’Soldering Handbook’, B M Allen, Iliffe, London, 1969

4 Solders and Soldering’, H H Manko, MeGraw-Hill, New York, 1964

5 ’Soldering Manual’ American Welding Society, New York, 2nd Edition 1979

6 ‘Das Loten f i r denlPraktiker’, R Strauss, Franzis-Verlag, Miinchen, 1978

England, 1983

American Society for Metals, Ohio, 1979

No 513

0.42 0.60 -

0.45 0.60 - 0.55 1.00 -

0.50 0.50 - 0.60 0.90 -

p, s 0.050 max

p, s 0.050max

Nuts and bolts, forgings and general engineering parts

Gears and machined parts for flame or induction hardening

General machine parts requiring higher wear resistance

Armature shafts High tensile bolts Lifting gear chains

Automotive forgings Armature shafts 5

0.24 1.30 - 0.32 1.70 -

0.32 1.00 - 0.40 1.40 -

0.32 1.30 -

0.40 1.70 -

0.15 0.90 - max 1.30 -

0.15 0.90 - max 1.30 -

B

2

Free cutting mild steels to be machined in high speed automatic lathes Free cutting mild steels to be machined

in high speed automatic lathes

0.24 1.10 - 0.32 1.50 -

0.32 1.00 -

0.32 1.30 - 0.40 1.70 -

0.40 1.00 - 0.48 1.40 -

S 0.24 0.32

Pb 0.15 0.30

s 0.12- 0.20

s 0.12- 0.20

s 0.12- 0.20

P 0.060

Si 0.25 max

s 0.12- 0.20

650

570 550/700

700

550/700 770/850

340/500

3401500

340,600

3401500

farain controlled steel

'N-Normalized C M d drawn HT-Hardened and tempered HR-Hot rolled C W 4 l d worked AR-As rolled

Not recommended for new designs Free cutting medium strength engineering steels for machine parts and engine components, etc

Free cutting medium strength engineering steels for machine parts and engine Free cutting medium strength engineering steels

max max

0.10 1.50 - max max 0.16 1.50 - max max

0.16 1.50 -

max max

0.2 1.50 - max max 0.20 i.50 -

max max 0.20 1.50 - max max 0.20 1.50 -

max max 0.18 1.50 - max max

0.18 1.50 - max max

- P + S

0.05max

- P + S 0.05 max

- P + S 0.04max

- Nb+V 0.lOmax

P+S

OWmax

- W + V O.15max

Structural steel Plate bars, sections, tubes

Structural steel Plate, bars, sections, tubes

Structural steel

Structural steel Plate bars, sections, tubes Structural steel Plate, bars, sections, tubes Weather resisting plate

Weather resisting plate

Structural quality Structural quality

Pressure vessel plate

kl

8

* AR-As rolled N-Normalized HT-Hardened and tempered NT-Normalized and tempered

?It is permissible for these steels to be supplied with no Nb or V If no grain refining elements, or if grain refining elements other than AI, Nb or V are used, the manufacturer shall inform the purchaser at the time or order

If Nb and V are used the total shall be less than 0.10%

E Table 22.47

0.70

0.12 0.40 0.20 0.70

-

-

0.30 0.70

0.30 0.70

2.00 Mo0.90 2.50 1.10

AI 0.02

c u 0.30 0.85 Mo0.45 1.15 0.65

AI 0.020

Cu 0.30 1.00 Mo0.45- 1.50 0.60 1.10 MoO.45

1.40 0.65

AI 0.020

Cu 0.30 1.40 c u 0.30

Cu 0.30 0.50 Mo0.2Ck

MnNiMo ASTM A533

rnax 1.10 - 1.00 0.90

0.60 0.12

NiCuMo ASTMA588-87 0.17 0.50 0.40 0.40 Mo0.10 AR 102 4 480 34 21

Cu 0.30 0.50

Nb 0.005 0.05

plate

CharpyV -

at -10°C 41-115

at -20°C 61-135

0.12

v 0.04-

c u 0.04 0.12

Structural steel resistant to

atmospheric

corrosion

Good low

temperature toughness

Pressure vessel plate

* NT-Normalized and tempered HT-Hardened and tempered QT-Quenched and tempered AR-As rolled

Table 22.41

CU 0.15-

+ B

NiCrMo UK Proprietary 0.22 1.00 0.70 0.90 Mo0.45- HT - - 660 501 20 CharpyV - Pressure vessel

N

I

m z

2iCrMo BS 1501-622 0.09 0.30 0.30 2.00 Mo0.90- NT 150 6 500/670 285 16 - - Pressure vessel

-590 - 0.80 max 6.00 0.65 3NiCrMo ASTM A543 0.18 0.40 2.25 1.00 Mo0.45- HT 102 4 710/835 590

Steel (Hy 80) max - 3.25 1.50 0.60

V 0.03max ASTM A543 0.20 0.40 2.50 1.30 M00.45- HT 102 4 790/930 700

790 3.25NiCrMo ASTM A508 0.23 0.20 2.95 1.50 Mo0.40- HT _ _

Steel Class 4a max 0.40 3.90 2.00 0.60

V 0.03rnax 3iNNiCrMo BS 1501-503 0.15 0.80 3.25 0.30 Mo0.10 NT or HT 38 450

SNiCrMoV ASTM (HY 130) 0.12 0.60 4.75 0.40 Mo0.30- HT 102 4 990

0.10

v 0.05-

3 Low alloy direct hardening steels including ultra high strength and steels suitable for nitriding

(BS 970:Part 1 :1988,4670:1971 DIN 17200:1969; 17211 :1970, Stahl Eisen WerkstotTblatt 550-57)

0.70

1 .00

0.50 0.80 0.50 0.80 0.50 0.80

0.60

0.90 0.60 0.90 1.30 1.70 1.30 1.70

0.70 - 1.00 -

88011 080

6801835

1 OOO/1160 850/1 OOO

88011 080

6801835 850/1 OOO

700/850

7001850

1 OOo/l 150 700/850 850/1 OOO

Pressure vessel plate

Plate

Forgings

248/302 Bright bar 201/255

2011255

2931352 201/255 Free cutting steel 3

248/302

9

i;

Condition* mm in MPa MPa

-

X r M o Steel UK Proprietary

lCrMo Steel DIN25CrMo4

lCrMo Steel DIN34CrMo4

0.29 0.80

0.30 0.50

0.37 0.80

0.36 0.70 0.44 1.00 0.36 0.70 0.44 1.00 0.36 0.60

0.32 0.50 0.40 0.80

-

- 0.30 max 0.40 0.70 1.30 1.70 1.30 1.80 0.90 1.20

0.70

0.90 1.20 0.90 1.20 0.90 1.20 0.90 1.20 0.90

1 S O

3.00 3.50 2.80 3.30 0.40 max 1.00 1.40

Mo 0.25- 0.35

Mo 0.25- 0.40 rnax

M o 0 4 5 0.65

Mo 0.30

0.50

Mo0.15 0.35 MoO.20 0.35

Mo 0.20- 0.40 Mo0.15 0.30

35

35 15/24 18/30

0.27 0.45 0.35 0.70 0.26 0.45 0.34 0.70 0.34 0.15 0.42 0.60

0.35 0.45 0.43 0.70

0.32 0.40 0.42

2.30 2.80 0.80 0.65

2.75 0.90 Mo0.25 3.25 1.20 0.35 3.90 1.10 Mo0.20 4.30 1.40 0.35 3.50 1.60 MoO.60 4.50 2.00

- 3.00 Mo0.80

- 3.50 1.10

V 0.15 0.25

- 4.75 Si 0.85 5.25 1.15

Mo 1.25 1.75

V 0.30 0.50

v 0.06

0.44 0.45 1.80 1.50 Mo0.90 HT (Typic4 V 0.25

0.35 0.40 - 1.40 Mo0.15 HT 0.43 0.65 - 1.80 0.25

Tool steel

Ultra high strength aircraft steel Ultra high strength aircraft steel Ultra high strength aircraft steel Nitriding steel 8 2

N

* HT-Hardened and tempered

V 0.08 0.15

4 Carburizing steels (BS 970:Part 1:1983: DIN 17210:1969)

0.18 0.60 - 0.60 Steel Bs 527M17 0.14 0.70 - 0.60

0.20 1.00 - 0.90 laMnCr DIN16MnCr5 0.14 1.00 - 0.80

0.60

0.90

0.40 0.60 0.35 0.60 0.25

0.60

0.95 0.60 0.95 0.60 0.90 0.40 0.60

0.85

1.25 1.40 1.70 3.00 3.75 3.90 4.30

-

-

-

- 1.50 2.00 1.50 2.00 1.50

0.35 0.75 0.35 0.75 0.35 0.75 1.20 1.70 1.40 1.70

0.60

1 .00

1.40 1.70 0.70

1 .oo

1 .oo

1.40 0.30 0.50 0.40 0.60

0.80

1.20 1.50 1.80

Mo 0.20 0.30 Mo0.15 0.25 Mo0.15 0.25 Mo0.15 0.25 Mo0.10 0.20

MO 0-25 0-35

Table 22.47 FORGED OR ROLLED STEELS-ROOM TEMPERATURE LONGITUDINAL MECHANICAL PROPERTIES-continued

5 High afloy steels

Stainless, heat resisting and value steels

BS 970: Parts 1 and 4; 1449:Part 2; 1983, and Aircraft steels DIN 17224:1968; 17440:1967, Stahl-Eisen WerkstofFblatt 390:61,400:60, 470:60, 670:69,

PICMA (Association International des Constructeurs de Material Aerospacial) Standards

Steel (En354) 0.20 0.90 2.00 1.20 0.20

Fen+tie stainless and hear resisting steels

12Cr Steel BS 3361 0.12 1.00 1.00 11.5 - HT 152 6 540/700 355 20

max max max 13.5

max max max 14.0 13CrSi Steel DINXlOCrSil3 0.12 1.00 - 12.0 Si 1.9 S _ _ 540/680 340 15

max rnax - 14.0 2.4 13CrAl Steel BS 405917 0.08 1.0 0.50 12.0 A1 0.10 S 51 2 420 200 20

max max max 14.0 0.30 13CrAIStcel DINXlOCrA113 0.12 1.00 - 12.0 A1 0.7 S _ _ 495/635 295 15

-

17CrTi Steel DINXSCrTil7 0.10 1.0 - 16.0 Ti 7 x

max max - 18.0 C min 17CrNb DINXSCrNbl7 0.10 1.00 - 16.0 Nb 12x

17CrMo BS 434317 0.08 1.00 0.50 16.0 Mo0.90

17CrMo DINX6CrMo17 0.07 1.00 - 16.0 Mo0.90

17CrMoTi DINXICrMoTil7 0.10 1.00 - 16.0 Mo1.50

up to 1050°C

in air Scaling resistant

up to 1050°C

in air Scaling resistant

up to 1200°C Scaling resistant

up to 1150°C

in air Resistant to stress corrosion

Wt

* OQ-Oil quenched HT-Hardened and tempered S S o R e n e d

Table 22.47 FORGED OR ROLLED STEELS-ROOM TEMPERATURE LONGITUDINAL MECHANICAL PROPERTIES-continued

c

o\ Composition Properties (minima unless otherwise stated)

0.09 1.50 0.15 max

0.14 1.00 0.20 max

0.14 1.50

0.20 max

0.18 1.00 0.25 max

0.15 1.50 0.25 max

0.20 1.00 0.28 max

0.20 1.50 0.28 max

0.28 1.00 0.36 max

11.5 13.5

11.5 13.5

11.5 13.5

11.5

13.5

12.0 14.0 12.0 14.0

12.0 14.0 12.0 14.0 12.0 14.0 15.0 18.0

2011255

g

B:Ft Free cutting steel P

13.5 2231277 B:Ft

13.5 223/277

B:F cutting Free steel

B:Ft

-

20

15.0 (Mo0.60max)HT 18.0 Se O.iS/O.W

11.0 Mo0.80/1.20 HT 12.5

11.0 M00.80/120 HT 12.5 V 0.25/0.35

11.0 M00.80/1.20 HT 12.5 V 0.2510.35 10.0 Mo0.40/1.00 HT 12.0 V 0.10/0.70

Nb 0.10/0.60 + N

11.0 Mo 1.50/2.00 €IT 12.5 V 0.25/0.40 + N

9.8 Co 5.00/7.50 HT 11.5 Mo0.50/1.10

89 34 thick thick disc disc

102 4 thick thick

resistant Gas turbine components

(Typical tangential values)

I

c

Table 22.41 FORGED OR ROLLED STEELS-ROOM TEMPERATURE LONGITUDINAL MECHANICAL PROPERTIES-continued

Austenitic stainless and heat resisting steels

133 max

Sh:St* Also used

as cold rolled strip

or cold drawn wire for springs Cold drawn and heat treated wire and springs B:F:Sh:Stt

III[uL

0.50 8.00 2.00 11.00

0.50 8.00 2.00 11.00

0.50 9.00 2.00 12.00 1.00 8.0

2.00 11.0

17.00 Mo1.00max S 150 6 19.00 Ti 5xC/0.8

17.00 Mo1.00max S 150 6 19.00 Nb 1OxC/1.1

-~

* S-Softened PH-Precipitation hardened LT Low temperature HT-Heat treatment CR-Cold rolled

tB=Ba* F=Forgings P ~ P l a t e s Sh-Sheets St-Strips T=TUubeS

E Table 22.47 FORGED OR ROLLED STEE%ROOM TEMPERATURE LONGlTUDINAL MECHANICAL PROPERnES-continued

0.07 2.00 10.00 max max 13.0

0.08 0.50 11.0

max 2.00 14.0

0.10 2.00 12.0 max max 14.5

0.04 1.5 12.0 0.10 max 14.0 0.04 1.5 12.5 0.10 max 14.5

0.04 1.50 i5.5

0.10 max 17.5

16.5 Mo2.25 ST 18.5 3.00

Nb 8 x C min 15.0 Nb l o x S

11.0 CJ1.2 15.5 Mo1.l PH 17.5 1.5

- Creep resistant

0.04 1.50

0.10 max

0.03 2.00 rnax max 0.06 2.00 max max 0.07 2.00 max max

0.20 2.00 max max

0.15 2.00 max max 0.15 0.50 max 2.00 0.15 0.50

m x 2.00 0.12 0.50

max 2.00

15.5 15.5 17.5 17.5

15.5 15.5

17.5 17.5

14.0 17.5 17.0 19.5 12.0 17.5 15.0 19.5 19.0 16.5 21.0 18.5

11.0 19.0 13.0 21.0

13.0 22.0 16.0 25.0 13.0 22.0 16.0 25.0 13.0 22.0 16.0 25.0 16.0 23.0 19.0 26.0

* S-Softened PH-Precipitation hardened

tB=Bars F=Forgings P=Plates Sh=Sheets St=Strips T=Tubes

W 2.5 3.5

Nb l o x + N

MO 1.6

2.0

Nb l o x

B 0.05 0.10

C/I.2

q 1 - 2

Mo 3.0 4.0

Mo 3.0 4.0

Mo 2.0 2.5

Cu 1.8 2.2

Nb 8 x C min

Si 1.8 2.3

-

Ti 4 x C min

N b 8 x C min

195max B:F:P:Sh:Stt

20Smax B:F:P:Sh:Stt

Resistant to sulphuric acid

-

Resistant to scaling up to 1050°C in air 205max P:Sh:Stt

-

40

~ B:F:Sh:Stt

Other section UTS Yield stress (81 5.65,/S0) Impact Hardness

0.08 1.00 24.0 13.5 Si 0.4/1.0 max 2.00 27.0 16.0 Ti 1.9/2.3

Mo 1.0/1.5

V 0.1/0.5

A1 0.35 max +B 0.20 2.00 19.0 24.0 Si 1.8

max max 21.0 26.0 2.3

0.06 2.00 24.0 24.0 Mo2.0 max max 26.0 26.0 2.5

Ti 5 x C min

0.05 5.5 0.20 6.5

0.15 5.5 max 7.0

0.15 5.5

max 7.5

0.07 7.00 max 10.00

0.15 7.5 max 10.0

19.0 20.0 21.0 22.5

9.0 10.5 11.0 12.5

9.0 14.0 11.0 16.0

3.5 16.0 5.5 18.0

4.0 16.5 6.5 18.5

4.0 17.0 6.0 19.0

0.07 8.9 5.9 18.0

(TYPiW 0.04 11.0 9.0 19.0

(TwicaU

0.15 17.0 1.5 11.0 max 19.0 2.5 13.0

Pressure vessel plate, super-

heater tube, steam piping

Composition Properties (minima unless otherwise stated)

Austenitic-fmritic stainless and heat tesisting steels

Resistant to scaling up to 1075°C in air

-

25/4CrNiSi DIN X20CrNiSi 0.15 2.0 3.5 24.0 Si 0.8 S _ _ 5901740 390 26 - - Resistant to

(Typical values) (Typical values)

Value steels (BS 970:Part 4:1970, Stahl Eisen Werkstoffblatt 49&52)

up to 1075°C

in air

Resistant to lead oxide corrosion

n

a

10.0 4.50

8.00 3.25 10.00 4.50

8.00 3.25 10.00 4.50

0.90 4.5 1.20 5.5

20.0 22.0 20.0 22.0

20.0 22.0

20.0 22.0

20.0 22.0

22.0 24.0

Si 1.0 1.3 Mo2.5 3.0

-

(HRC40)

High-strength stainless steefs (ASTM A579-67, DIN 172241968)

Semi-Austenitic steels (Typical contpositiom and mechanical properties)

Sheet and strip

Also used as cold- rolled strip or colddrawn wire 9

temperatures

up to 350°C for springs at 2

E

w

Tabk 22.47 FORGED OR ROLLED STEELS-ROOM TEMPERATURE LONGITUDINAL MECHANICAL PROPERTiES-continued E I

14.5 Mo1.6

Cu 1.6

Nb 0.30 15.1 Mo2.2 A1 1.2 + N 16.5 Mo2.75

Bars and forgings 2'

for aircraft parts q

valves, piping, aircraftparts 2

Aircraft parts, valves, turbine

Gears, springs, cutlery, aircraft parts, turbine components Gears cams, cutlery, aircraft

Pa-

0.25 8.5

0.20 -

Not 3.5 given

Not 4.0 given

Not 8.1

given

Not 12.0 given

12.8 Mo2.2 A1 1.1

Mo 4.0

Ti 0.40

Nb 0.10 A1 0.10 +Zr, B

stamping tools

CharpYV - Gears, fasteners,

missile cases, aircraft parts, 3

plastic mould dies, die holders, die casting die inserts, extrusion tools E

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