DIN 2445-1 standard includes a summary of hot finished ST52.4 seamless steel tubes for dynamic loads, which are preferably used in hydraulic high-pressure installations. It applies to straight tubes. For details relating to the bending of tubes, see the supplement to DIN 2445. The outside diameters of the ST52.4 tubes and the wall thickness are taken from International standard ISO 336 or DIN 2448.
DIN2445-1 St 52.4 seamless steel pipe chemical composition
Chemical composition |
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|
Steel grade |
Type of deoxidation (RR.fully killed) |
Chemical composition,%bymass |
Addition of nitrogen fixing elements (e.g.nolessthan0.020%Altotal) |
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|
Symbol |
Material number |
C |
Si |
Mn |
P |
S |
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|
max |
max |
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|
St52.4 |
1.0581 |
RR |
0.22 |
0.55 |
<=1.60 |
0.040 |
0.035 |
Yes |
DIN2445-1 St 52.4 seamless steel pipe mechanical property
Steel grade |
Upper yield stress Reh for wall thickness in mm |
Tensile strength Rm N/mm2 |
Elongation after fracture A5 |
Impact energy ISOV-notch test pieces at+20°C |
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|
Symbol |
Material number |
Up to 16 |
16-40 |
40-65 |
longitudinal |
transverse |
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|
N/mm2min |
%min |
/min |
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|
St52.4 |
1.0581 |
355 |
345 |
335 |
500to650 |
21 |
19 |
43 |
27 |
DIN2445-1 St 52.4 seamless steel pipe Specifications or Size:Out Diameter 12.5mm—824mm ；Wall Thickness : 2mm—100mm；Length: Random length, Fixed Length, SRL, DRL
Heat treatment:Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting
DIN2445-1 St 52.4 seamless steel pipe Surface treatment:PVC,black and color painting；Transparent oil,anti-rust oil；According to clients requirement
DIN2445-1 St 52.4 seamless steel pipe Finished goods condition:hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Payment : TT, LC,DP are all ok
Trade Terms : FOB / CFR /CIF
DIN2445-1 St 52.4 seamless steel pipe Delivery period: according to the material ,the standard, and the quantity of the contract.
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