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SOLUTIONS: Unalloyed/low alloyed steel high temperatures. On board you will find this steel in boiler tubes, boiler plates and high pressure pipes. A common composition is as follows (%):

2.04

Fe

C

Mn

Si

Main comp.

0.10

0.90

0.30

Mo

Cr

S

P

0.50

1.00

0.03

0.03

heat resistant filler materials in the Unitor range.

Low temperature steel Low temperature steel containing nickel is today used more and more in processing equipment onboard ships carrying low temperature cargo. We also find this type of steel in Ice – class hull plates.

The LHL electrode are a low temperature electrode for use on this type of steel.

For welding of heat resistant steel, filler material with heat resistant deposit only may be used. Selection of the correct electrode for the job will depend on the percentage of Mo and Cr in the alloy. LHT and ICROMO are

Weathering steel

Weathering steel can be exposed to the weather without being painted. Good corrosion resistance to seawater and flue gases. This type of steel contains Copper and Nickel. Use LHR electrode for welding.

Standard construction steel A.S.T.M.

S.A.E.

A.I.S.I.

1018 1018 1018 1018 1045 1045 1045 1045 1140/1146 1140/1146 1215 1215 12L 14 12L 14 12L 14 4130 4130 4130 4140/4142 4140/4142 4140/4142 4140/4142 4140/4142 4340 4340 8620 8620

54

EN

Wekstoff W.-Nr

DIN

BS 970

UNI

JIS

C15D C18D

1.1141 1.0401 1.0453

CK15 C15 C16.8

C15 C16 1C15

S15 S15CK S15C

C45

1.0503 1.1191 1.1193 1.1194 1.0726 1.0727 1.0715 1.0736 1.0718 1.0737

C45 CK45 CF45 CQ45 35S20 45S20 9SMn28 9SMn36 9SMnPb28 9SMnPb36

040A15 080M15 080A15 EN3B 060A47 080A46 080M46 EN8D 212M40 En8M 230M07 En1A 230M07Leaded En1A Leaded

C45 1C45 C46 C43

S45C S48C

CF9SMn28 CF9SMn36 CF9SMnPb28 CF9SMnPb36

SUM 25 SUM 22 SUM 22L SUM 23L SUM 24L

1.7218

25CrMo4 GS-25CrMo4

708A30 CDS 110

42CrMo4

1.7223 1.7225 1.7227 1.3563

41CrMo4 42CrMo4 42CrMoS4 43CrMo4

34CrNiMo6

1.6582 1.6562 1.6543 1.6523

34CrNiMo6

40 NiCrMo8 4

21NiCrMo22 21NiCrMo2

708M40 708A42 709M40 En 19 En 19C 817M40 En24 805A20 805M20

25CrMo4 (KB) 30CrMo4 30CrMo4 41CrMo4 38CrMo4 KB G40 CrMo4 42CrMo4

SCM 420 SCM 430 SCCrM1 SCM 440 SCM 440H SNB 7 SCM 4M SCM 4 SNCM 447 SNB24-1-5 SNCM 220 (H)

35S20 45S20 11SMn37 11SMnPb30 11SMnPb37

20NiCrMo2-2

35NiCrMo6 KB 40NiCrMo7 KB 20NiCrMo2