Foundry Division
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 | Avg. 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 |
Contacts
ContactPEIRON OY METAL FOUNDRY P.O. Box 88 FI-32801 Kokemäki FINLAND Tel: +358 20 750 9400 E-mail: info@peiron.com
Contact Sales Regarding Kumera Peiron Foundry
