The document discusses various classifications of materials including ferrous alloys, non-ferrous alloys, and specific metal alloy compositions and properties. It covers classifications of cast irons, steels, stainless steels, tool steels, aluminum alloys, magnesium alloys, and provides examples of alloy designations and properties.

1. Klasifikasi Material
Myrna Ariati
Wahyuaji Narottama Putra

2. Klasifikasi Material

3. Ferrous Alloys
Cast Iron

4. 1. White Cast Iron
2. Grey Cast Iron (FC)
3. Mallable Cast Iron
4. Ductile Cast Iron (FCD)
5. Austempered Ductile Iron (ADI)
Matrix: Ferritic, pearlitic, austenitic,
martensitic, bainitic (austempered).
Tipe Besi Tuang

5.  Komposisi Besi Tuang
Utama : Fe (besi)
Paduan : C (karbon) = 2.75 – 4.00%
Si (silikon) = 0.75 – 3.00%
Mn (mangan) = 0.25 – 1.50%
P (posfor) = 0.02 – 0.75%
S (sulfur) = 0.02 – 0.2%
 Carbon Equivelent :
CE (%) = C (%) + 0,33 (Si + P) %
Komposisi Besi Tuang

6. Komposisi Besi Tuang

7. Sifat Mekanik Besi Tuang
UTS (Kg/mm2) Elongasi (%)
Grey Cast Iron(FC) 10 – 35 < 1
Mallable Cast Iron 40 – 47 15 – 20
Nodular Cast Iron (FCD) 45 – 55 3 – 20
Austempered Ductile
Iron (ADI)
> 100 4 – 7
Vermicular (Compacted
Graphite) Cast Iron
30 - 40 2 - 5

8. Klasifikasi Besi Tuang Kelabu

9. Klasifikasi Besi Tuang Kelabu
Class Symbol UTS
(kg/mm2)
Hardness
(HB)
Class 1 FC 10 10 min 201 max
Class 2 FC 15 15 min 212 max
Class 3 FC 20 20 min 223 max
Class 4 FC 25 25 min 241 max
Class 5 FC 30 30 min 262 max
Class 6 FC 35 35 min 277 max

10. Klasifikasi Besi Tuang Nodular

11. Klasifikasi Austempered Ductile Iron

12. Ferrous Alloys
Carbon Steel

13. Klasifikasi
Baja

14. A = alloy, basic open hearth
B = carbon, acid Bessemer
C = carbon, basic open hearth
D = carbon, acid open hearth
E = electric furnace
Contoh: AISI C1050 adalah
baja karbon, basic-open hearth
steel dg 0.50 % karbon
Huruf lain adalah H-
Hardenability Contoh; 4340H
Klasifikasi Baja Paduan

15. Klasifikasi
Baja
Paduan

16. Klasifikasi Baja Paduan

17. Klasifikasi Baja Paduan

18. Ferrous Alloys
Stainless Steel

19. Family of Stainless Steel

20. Properties of Stainless Steel
Alloy Group Magnetic
Response1
Work Hardening
Rate
Corrosion
Resistance2
Hardenable
Austenitic Generally No Very High High By Cold Work
Duplex Yes Medium Very High No
Ferritic Yes Medium Medium No
Martensitic Yes Medium Medium Quench &
Temper
Precipitation
Hardening
Yes Medium Medium Age Harden
Alloy Group Ductility
High
Temperature
Resistance
Low Temperature
Resistance3 Weldability
Austenitic Very High Very High Very High Very High
Duplex Medium Low Medium High
Ferritic Medium High Low Low
Martensitic Low Low Low Low
Precipitation
Hardening
Medium Low Low High

21. Austenitic SS

22. Ferritic SS

23. Martensitic SS

24. Duplex SS

25. Ferrous Alloys
Tool Steel

26. Klasifikasi Tool Steel

27. Klasifikasi Tool Steel

28. Tipe Tool Steel

29. Tipe Tool Steel

30. Non Ferrous
Aluminium Alloys

31. Klasifikasi Aluminium Alloys

32. Klasifikasi Aluminium Alloys

33. Klasifikasi Aluminium Alloys

34. Klasifikasi Aluminium Alloys

35. Klasifikasi Aluminium Alloys

36. Perlakuan Panas Aluminium

37. Perlakuan Panas Aluminium

38. Perlakuan Panas Aluminium

39. Perlakuan Panas Aluminium

40. Non Ferrous
Magnesium Alloys

41. Klasifikasi Paduan Magnesium
AZ91C-T6
2 huruf
Elemen paduan
utama
A = aluminium
Z = zinc
2 angka
Jumlah paduan
utama
9 = 9% Al
1 = 1% Zn
Klasifikasi
Temper
-T6 = solution
treatmen dan
pemanasan
aging
1 huruf
Paduan lain
C = Paduan
ketiga

42. Kode-kode penandaan ASTM
 A - Aluminium
 E - Rare earths
 H - Thorium
 K - Zirconium
 M - Manganese
 Q - Silver
 T - Tin
 Z - Zinc
 F - As fabricated
 O - Annealed
 H10 and H11 - slightly strain hard
 H23, H24, H26 - strain hardened and
partially annealed
 T4 - artificially aged
 T6 - Solution treat, aged
 T8 - Solution treat, cold work, aged

43. Contoh Magnesium Alloys
 AZ91C-T6: 9Al-0.7Zn-0.13Mn
 Kekuatan menengah (91 MPa yield, 275 MPa tensile),
keuletan baik
 K1A: 1Zr
 Kapasitas redam tinggi
 QH21A: 2.5Ag-1Th-0.7Zr
 Komponen pesawat udara untuk hingga 250˚C
 207 MPa yield, 275 MPa tensile

44. Contoh Magnesium Alloys
 AZ91B-F
 Paduan untuk proses die casting
 AM60A-F
 Roda automotive, ketangguhan baik, kekuatan baik.
 AS41A-F
 Ketahanan creep baik hingga 175˚C

45. Contoh Magnesium Alloys
 AZ31B-F
 Batang ekstrusi dan dibentuk untuk komponen baterai,
sifat mekanis menengah jika digunakan untuk struktur.
 HK31A-H24 Sheet and plate ,
 yield stress 205 MPa dan UTS 260 MPa, mampu las
amat baik.

46. Contoh Magnesium Alloys

47. Contoh Sifat Magnesium Alloys

48. Unified Number System
(UNS)
Metals & Alloys

49. Unified Number System