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Materials

Steel castings

Constructional steels: Machine building, offshore and valves

Peiron Oy Construction steel

Standard

Alloy symbol

 

C %

Si %

Mn %

P %

S %

Cr %

Cu %

SFS 365

G-20Mn5

min

max

 

0.20

 

0.60

 

1.5

 

0.035

 

0.035

 

0.30

 

0.40

SFS 357

G-26-52

min

max

Keskim. 0.25

(0.5)

 

(0.7)

 
 

0.040

 

0.040

   

SFS 356

G-23-45

min

max

 

0.25

(0.5)

 

(0.7)

 
 

0.040

 

0.040

   

Guaranteed mechanical characteristics

Standard

The condition of delivery

Yield point Rel min. N/mm²

Tensile strength Rm min. N/mm²

Elongation A5 min %

Reduction of area Z N/mm²

Impact strength kV

Hardness HB

min J

°C

SFS 365

01

04

290

290

490

490

18

18

35

35

(28)

(28)

(-40)

(-40)

140-180

140-180

SFS 357

 

260

520 - 670

18

25

22

20

(150)

SFS 356

 

230

450 - 600

22

31

25

20

(130)

Condition of delivery 01 is normalized.

Condition of delivery 04 is tempered to balance.

Figures in brackets are not binding.

Mechanical characteristics will be defined from separate samples or from samples that are cast together. The form of samples is according to SFS 351 and measures according to SFS 3077.

Welding

The welding of SFS-365 requires a 100°C pre-heating. As an ingredient a non-blended or an Mn-blended ingredient is to be used. After welding a heat-treatment of 500-650°C is required. Welding of SFS 357 requires a pre-heating of 200-300°C. After welding SFS 357 requires a tension removing and normalization tempering. SFS 356 can be welded by common welding methods. After large-scale welding a tension removing and normalization tempering is required.

Equivalence of standards

G-20Mn5

Country
Standard
Alloy symbol
Sweden
SIS 14 21 72
SS 21 72
Germany
DIN 17245
GS-C25
USA
ASTM A 352
LCC
Russia
COST 21357-75
20 GLS

G-23-45

Country
Standard
Alloy symbol
Sweden
SIS 14 13 05
SS 13 05
Germany
DIN 1681-1967
GS-45
USA
ASTM A 27
65-35
Russia
COST 977-75
20 L

G-26-52

Country
Standard
Alloy symbol
Sweden
SIS 14 15 05
SS 15 05
Germany
DIN 1681-1967
GS-52
USA
ASTM A 27
70-36
Russia
COST 977-75
35 L

Tempering and tool steels: Machine building, tools and wear resistant components

Peiron Oy Tempering steel
Standard
Alloy symbol
 
C %
Si %
Mn %
P %
S %
Cr %
Mo %
Ni %
SFS 367
G-25CrMo4
min
max
0.22
0.29
-
0.60
0.50
0.80
-
0.035
-
0.035
0.90
1.20
0.15
0.25
-
0.30
SFS 368
G-34CrMo4
min
max
0.30
0.37
-
0.60
0.50
0.80
-
0.035
-
0.035
0.90
1.20
0.15
0.25
-
-

Guaranteed mechanical characteristics

Standard
The condition of delivery
Yield point Rel min. N/mm²
Tensile strength Rm min. N/mm²
Elongation A5 min %
Reduction of areaZ N/mm²
Impact strength kV
Hardness HB
min J
°C
SFS 367
07
08
490
590
680 - 830
780 - 930
12
10
30
25
(28)
(28)
(-20)
(-20)
(210 - 260)
(240 - 290)
SFS 368
08
09
596
690
780 - 930
880 - 1080
10
8
25
20
-
-
-
-
(240 - 290)
(280 - 330)
G42CrMo4
08
09
596
690
780 - 930
880 - 1080
10
8
25
20
-
-
-
-
(240 - 290)
(280 - 330)
G17CrMo5-5
08
09
596
690
780 - 930
880 - 1080
10
8
25
20
-
-
-
-
(240 - 290)
(280 - 330)
Phase 07 is tempered to hardness HB 210-260.

Phase 08 is tempered to hardness HB 240 – 290.

Phase 09 is tempered to hardness HB 280 – 330.

Figures in brackets are not binding. Mechanical characteristics are defined from separate parts or from parts that are welded together. The form of these samples must be according to SFS 351 and measures according to SFS 3077.

Welding

The welding of G-25CrMo4 demands pre-heating. After welding a post-heating treatment must be carried out in a temperature of 550-670°C. Welding of G-34CrMo4 is more demanding than G-25CrMo4. In both materials the same welding procedure is valid.

Equivalence of standards

G-25CrMo4

Country
Standard
Alloy symbol
Sweden
SIS 14 22 25
SS 22 25
Germany
Werkstoffblatt 510
GS-25CrMo4
USA
ASTM A 487
Class 9Q
Russia
21357-75
30 HMLS

G-34CrMo4

Country
Standard
Alloy symbol
Sweden
SIS 14 22 34
SS 22 34
Germany
Werkstoffblatt 510
GS-34CrMo4
USA
_
_
Russia
21357-75
35 HGSMLS

Stainless steels: Paper and pulp industry, valves, pumps and propulsion systems

Peiron Oy Stainless steel
Standard
Alloy symbol
 
C %
Si %
Mn %
P %
S %
Cr %
Cu %
Mo %
Ni %
SFS 388
G-X8CrNiMo 19 10 2
min max
 
0.08
 
2.00
 
1.50
 
0.04
 
0.04
18.0 21.0
-
-
2
3
9.00
12.00
SFS 387
G-X8CrNi 19 9
min max
 
0.08
 
2.00
 
1.50
 
0.04
 
0.04
18.0 21.0
-
-
-
-
8.00
11.00

Guaranteed mechanical characteristics

Standard
The condition of delivery
Yield point Rel min. N/mm²
Tensile strength Rm min. N/mm²
Elongation A5 min %
Reduction of area Z N/mm²
Impact strength kV
Hardness HB
min J
°C
SFS 388
06
205
485
30
-
-
-
-
SFS 387
06
195
450
35
-
-
-
-

Phase 06 is austenation.

Mechanical characteristics will be defined from separate samples or from samples that are cast together. The form of samples is according to SFS 351 and measures according to SFS 3077.

Welding

SFS 388 and SFS 387 are easily weldable.

Equivalence of standards

G-X8CrNiMo 19 10 2

Country
Standard
Alloy symbol
Sweden
SIS 14 23 43
SS 23 43
Germany
17445
G-X6CrNiMo 18 10
USA
A 743
CF-8M
Russia
-
-

G-X8CrNi 19 9

Country
Standard
Alloy symbol
Sweden
SIS 14 23 33
SS 23 33 + 23 24
Germany
17445
G-X6CrNi 18 9
USA
A 743
CF-8
Russia
2176-77
07Cr 18Ni 9L

Heat resistant steels: Sintering grates, melting equipment, power plants, heat treatment and thermal power plant

Peiron Oy Heat resistant steel

Standard

Alloy symbol

 

C %

Si %

Mn
%

P %

S %

Cr %

Ni %

Mo %

DIN 17465

G-X40CrNiSi 291.4776

min

max

0.30

0.50

1.00

2.50

1.00

2.50

-

0.035

-

0.030

27.0

30.0

-

-

-

-

DIN 17465

G-X25CrNiSi 20 14 1.4832

min

max

0.15

0.35

1.00

2.50

1.00

2.50

-

0.035

-

0.030

19.0

21.0

13.0

15.0

-

-

SFS 393

G-X40CrNi 25 20 1.4848

min

max

0.20

0.60

-

2.00

-

2.00

-

0.040

-

0.040

24.0

28.0

18.0

22.0

-

0.50

Guaranteed mechanical characteristics

Standard
The condition of delivery
Yield point Rel min. N/mm²
Tensile strength Rm min. N/mm²
Elongation A5 min %
Reduction of areaZ N/mm²
Impact strength kV
Hardness HB
min J
°C
DIN 17465
00
-
(~500)
(~8)
-
-
-
200 - 300
DIN 17465
00
230
440
10
-
-
-
(150 - 220)
SFS 393
00
240
450
10
-
-
-
(150 - 220)
The condition of delivery 00 = as cast.

The figures in brackets are suggestive.

Mechanical characteristics will be defined from separate samples or from samples that are cast together. The form of samples is according to SFS 351 and measures according to SFS 3077.

Welding

G-X40CrNiSi 29 is extremely difficult to weld. The welding must be carried out in 700-800 °C. After the welding it must be slowly cooled down in the furnace. G-X25CrNisi 20 14 is highly weldable. It does not require before or after heat treatment. G-X40CrNi 25 20 welding abilities are moderate.

Equivalence of standards

G-X40CrNiSi 29

Country
Standard
Alloy symbol
Sweden
-
-
USA
ASTM A 297
HC
Russia
-
-

G-X25CrNiSi 20 14

Country
Standard
Alloy symbol
Sweden
-
-
USA
(AiSi 309)
-
Russia
-
20Ch20N14S2L

X40CrNi 25 20

Country
Standard
Alloy symbol
Sweden
-
-
Germany
DIN 17465
X40CrNi 25 20
USA
ASTM A 295
HK
Russia
-
-

Wear resistant steels: Mineral handling and grinding, pumping of abrasive materials and power plants

Peiron Oy Wear resistant steel and cast iron

Foundry quality

Equal foreign standard

 

C %

Si %

Mn %

P %

S %

Cr %

Ni %

Mo %

CrMo 131

(W1.2378) (x220 CrVMo 122)

min

max

1.80

2.50

-

1.00

-

0.06

-

0.035

-

0.035

11.0

13.0

-

-

-

1.00

Chromium iron

ASTM A532 IIIA 25% Cr

min

max

2.30

3.00

-

1.00

-

1.50

-

0.10

-

0.06

24.0

30.0

-

1.50

-

1.50

NiHard 2

ASTM A532 I B Ni-Cr-LC

min

max

2.50

3.00

-

0.80

-

1.30

-

0.30

-

0.15

1.40

4.00

3.30

5.00

-

1.00

NiHard 4

ASTM A532 I D Ni-Hi-Cr

min

max

2.50

3.60

1.00

2.20

-

1.30

-

0.10

-

0.15

7.00

10.0

4.50

7.00

-

1.00

Guaranteed mechanical characteristics

Foundry quality
The condition of delivery
Thickness max mm
Tensile strength Rm min. N/mm²
HardnessHB
Normative microstructure
CrMo 131
Soft annealing
Hardening
Tempering
-
-
n.300
n.800
n.700
Martensite + Carbide
EN-GJN-HV600(XCr14) G-X300CrMo 15 1
Hardening as cast
Soft annealing
200
(340 - 390)
n.450
n.600
max 400
Martensite + Residual austenite + Carbide
Chromium iron
Hardening as cast
Soft annealing
200
(340 - 390)
n.450
n.600
max 400
Martensite + Residual austenite + Carbide
NiHard 2
Soft annealingas cast
200
(320 - 390)
n.550
n.600
Martensite + Carbide
NiHard 4
Hardening as cast
300
(500 - 600)
n.550
n.600
Martensite + Carbide

CrMo 131

Country
Standard
Alloy symbol
Sweden
-
-
Germany
-
(X222CrVMo 12 2)
USA
-
-

Chromium Iron

Country
Standard
Alloy symbol
Sweden
SIS 14 04 66
SS 04 66
Germany
DIN 1695
G-X260Cr27
USA
ASTM A532
IIIA 25% Cr

NiHard 2

Country
Standard
Alloy symbol
Sweden
SIS 14 05 12
SS 05 12
Germany
DIN 1695
G-X260NiCr 42
USA
ASTM A532
I B Ni-Cr-LC

NiHard 4

Country
Standard
Alloy symbol
Sweden
-
-
Germany
DIN 1695
G-X300CrNiSi 952
USA
ASTM A532
I D Ni-Hi Cr

Iron castings

Grey iron

Peiron Oy grey cast iron

Characteristics

All figures are for the Ø 30 mm bar.

Strength
Tensile strength min. N/mm²
Bending strength N/mm²
Compression strength
N/mm²
Shear strength = n xTensile strength
Hardness HB
Modulus of elasticity kN/mm²
GJL 150
150
230 - 370
550 - 700
n - 1.5
140 - 190
80 - 105
GJL 200
200
290 - 430
600 - 830
170 - 210
90 - 115
GJL 250
250
350 - 490
700 - 1000
180 - 240
105 - 120
GJL 300
300
410 - 550
820 - 1200
200 - 260
110 - 140
GJL 350
350
470 - 610
950 - 1400
n - 1.1
210 - 280
125 - 145

 

 

Country
Strength
Standard Year
Finland Germany GJL 200 GG 20 GJL 250 GG 25 GJL 300 GG 30 GJL 350 GG 35 SFS 4855 DIN 1961 19821964
Sweden Norway SIS 0120 SjG 20 SIS 0125 SjG 25 SIS 0130 SjG 30 SIS 0135 SjG 35 SS 14 XX XX NS 722 1976 1963
Denmark UK GG 20 Gr. 180 GG 25 GG 30 Gr. 300 GG 35 Gr. 350 DS 11301 BS 1452 1969 1977
France Russia Ft 20D SC 18-36 Ft 25D SC 24-44 Ft 30D SC 32-35 Ft 35D SC 36-56 NFA-32-101 GOST 1412 1965 1970
USA Class 25B Class 35B Class 50B ____ 45B Class 55B ASTM A48 1974
Japan I.S.O. FC 20 Gr. 20 FC 25 Gr. 25 FC 30 Gr. 30 FC 30 Gr. 35 JLS.G. 550 R 185 1976 1962

Nodular Iron

Peiron Oy Nodular graphite cast iron

Characteristics

Strength
Tensile strength Rm min. N/mm²
Yield point Rel min. N/mm²
Reduction of area A % min. N/mm²
Hardness HB
Modulus of elasticity E kN/mm²
EN-GJS-400-15 (GRP 400)
400
250
15
(130 - 180)
165
EN-GJS-400-18 (GRP 400)
400
250
18
(130 - 180)
165
EN-GJS-500-7 (GRP 500)
500
330
7
(170 - 230)
EN-GJS-600-3 (GRP 600)
600
390
3
(200 - 260)
EN-GJS-700-2 (GRP 700)
700
440
2
(230 - 300)
EN-GJS-800-2 (GRP 800)
800
500
2
(250 - 320)
185
EN-GJS-1000-5 ADI
1000
700
5
(270 - 350)
185

Special categories for nodular graphite cast iron are according the SFS2113 quality system

Strength
Tensile strength Rm min. N/mm²
Yield point Rel min. N/mm²
Reduction of area A % min. N/mm²
Impact strength KV J
Hardness HB
-20°C
-40°C
GRP 340
340
220
22
-
14
150
GRP 370
370
250
20
14
-
160

 

Country
Strength
Standard
Year
FinlandGermany
GRP 400 GGG 40
GRP 500 GGG 50
GRP 600 GGG 60
GRP 700 GGG 70
GRP 800GGG 80
SFS 2113 DIN 1693
19751973
Sweden Norway
SIS 0717-20 NS 11342
SIS 0727-02 NS 11350
SIS 0732-03 NS 11360
SIS 0737-01 NS 11370
 
SS 14 XX XX NS 11301
1977 1971
Denmark UK
0715, 0716 Gr. 370-17
0727 Gr. 500-7
0707 Gr. 600-3
0708 Gr. 200-2
Gr. 800-2
DS 11303 BS 2789
1971 1973
France Russia
FGS 370-17 Vch 38-17
FGS 500-7 Vch 45-5. 50.2
FGS 600-3 Vch 60.2
FGS 700-2 Vch 70-3
FGS 800-2 Vch 80-3
NFA 32-201 GOST 7293
1976 1970
USA Japan
60-40-18 FCD
80-55-06 FCD 45
FCD 60
100-70-03 FCD 70
120-90-02
ASTM A536 JIM.G 5502
1972 1975
I.S.O.
Gr. 370-17
Gr. 500-7
Gr. 600-3
Gr. 700-2
Gr. 8000-2
1083
1976

ADI (Austempered Ductile Iron): Special nodular iron which has extremely good hardness, strength and wear resistability

High alloy irons for stainless, heat resistant and wear resistant applications -White cast irons, Chromium irons, Ni-hards and Austenitic irons.

Gearbox assembly

Gearbox assembly