DIN 2391 tus qauv rau precisiontxias kos seamless steel raj
Qhov Loj (mm):
Qhov Loj: 16-325
Phab ntsa thickness: 1-22
Ntev: Max: 12000
Daim ntawv thov tseem ceeb:
Hydraulic system nrog steel, tsheb hlau, dav siv nyob rau hauv hydraulic system nyob rau hauv steel raj, txhaj tshuaj molding tshuab nyob rau hauv steel raj, hydraulic xovxwm nyob rau hauv steel raj, steel raj, EVA ua npuas ncauj hydraulic machinery, precision hydraulic steel yeeb nkab txiav tshuab, khau ua machinery , hydraulic khoom, siab siab tubing, hydraulic tubing, daim ntawv teev cov pob qij txha, cov yeeb nkab txuas, roj hmab machinery, forging machinery, casting machinery, engineering machinery, tsheb siab siab steel yeeb nkab qhob twj tso kua mis, tsheb huv si, tsheb kev lag luam, shipbuilding kev lag luam, hlau ua , tub rog kev lag luam, diesel cav, lub cav combustion sab hauv, cua compressor, siv tshuab, kev ua liaj ua teb thiab hav zoov machinery, thiab lwm yam.
Chemical Cheebtsam (%)
| qib steel | C max | Si max | Mn | P max | S max |
| St35 | 0.17 ib | 0.35 Nws | 0.40 Nws | 0.025 ib | 0.025 ib |
| St45 | 0.21 ib | 0.35 Nws | 0.40 Nws | 0.025 ib | 0.025 ib |
| St52 | 0.22 | 0.35 Nws | 1.60 ib | 0.025 ib | 0.025 ib |
Mechanical zog (Mpa)
| Kev xa khoom xa tuaj | txias ua hauj lwm (nyuaj) BK | txias ua haujlwm (soft) BKW | Ua haujlwm txias thiab tshem tawm quab yuam BKS | annealing (GBK) | normalizing (NSK) |
| qib steel | / | / | / | / | / |
| St35 | TS:480 E: 6 | TS: 420 E: 10 | TS:420 YS:315 E:14 | TS: 315 E: 25 | TS: 340-470 YS: 235 E: 25 |
| St45 | TS: 580 E: 5 | TS: 520 E: 8 | TS:520 YS:375 E:12 | TS: 390 E: 21 | TS: 440-570 YS: 255 E: 21 |
| St52 | TS: 640 E: 4 | TS: 580 E: 7 | TS: 580 YS: 420 E: 10 | TS: 490 E: 22 | TS: 490-630 YS: 355 E: 22 |
Remark: TS: Tensile Strength YS: Yield Strength E: Elongation
Post lub sij hawm: Oct-15-2019