ST52 ST52-3 S355JR S355J0 Khoom ncej steel puag ncig bar
St52 belongs rau low-alloy high-strength steel, Sib piv rau Tuam Tshoj yam khoom st52 yog sib npaug rau Q345B, los yog 16mn thiab Q345D.Qhov sib npaug steel qib yog ST52-3 S355JR S355J0.
Lub steel bar tau siv nyob rau hauv txhua yam ntawm cov cheeb tsam, xws li aviation, aerospace, navigation, nuclear zog, tshuaj lom neeg kev lag luam, hluav taws xob cov ntaub ntawv, tshuab siv, petrochemical, automotive, instrument thiab meter, Kev sib txuas lus, kev thauj mus los, thiab cov cuab yeej kho mob, thiab lwm yam.
Cov qib steel sib npaug
| Teb chaws USA | Nyiv | Gemany | Askiv | Fabkis | Thoob ntiaj teb | Suav |
| ASTM & AISI & SAE | JIS | EN DIN | EN IB | EN NF | ISO | GB |
| Qib 50 | SPF 590 | S355 JR 1.0060 St52-3 | S355 JR 1.0060 | S355 JR 1.0060 | ------ | q345 ua |
Specification
| Lub teb chaws | Tuam Tshoj | Nyiv | Lub teb chaws Yelemees | Teb chaws USA | UK |
| Txuj | GB/T 699 | JIS G4051 | DIN (W-Nr.) | ASTM / AISI | EN / IB |
| TS EN 10083-2 | ASTM A20 | ||||
| Qib | Q355/Q345 | / | S355/ST52-3/1.1170 | / | EN14/150M19 |
Chemical Composition (%)
| Khoom siv | ST52 ST52-3 S355JR S355J0 | ||
| Tshuaj muaj pes tsawg leeg | Mechanical Properties (Hauv Quenched & Tempered State) | ||
| C | ≤0.20 ib | Tensile zog (MPA) | 470-630 : kuv |
| Si | ≤0.55 ib | Yield zog (MPA) | ≥345 |
| Mn | 1.00-1.60 Nws | Kev cuam tshuam (J)(20,0 °C) | ≥34 |
| P | ≤0.040 ib | Elongation (δ5/%) | ≥21 |
| V | 0.02-0.15 dr hab | Hardness | --- |
| S | ≤0.050 Nws | ||
| Nb | 0.015-0.06 Nws | ||
| Ti | 0.02-0.20 Nws | ||
| Al | ≥0.015 ib | ||
Kev xa khoom
Rau kub forged los yog kub dov bar, feem ntau cov khoom xa tuaj yog kub forged los yog dov, annealed, ntxhib tig.
Rau kub forged phaj, feem ntau tus me nyuam mob yog kub forged, annealed, milled nto.
Rau kub dov phaj, feem ntau qhov kev xa khoom yog kub dov, annealed, dub nto.
Lwm cov khoom tseem ceeb ntawm steel
|
Hlau alloy | 4 140 | 4142 ib | 42CrMo4 | 1.7225 ib | SCM440 | 4 130 | SWM 430 |
|
| 34 NPO 6 | 1.6582 ib | ib 4340 | TIAB SA 439 | 36 CrNiMo4 | 1.6511 ib | TIAB SA 645 |
|
| SNC236 | 1.7218 ib | SIB 438 | 25 CrMo4 | 1340 ib | SMK 22 | SWM 421 |
|
Cov cuab yeej hlau | H13 | 1.2344 ib | SIB 61 | D2 | D3 | 1.2379 ib | 1.2510 Nws |
|
| 01 | SKS 3 | SKD 1 | 95nwv 5 | 1.2419 Nws | SIB 31 | H21 |
|
| SKD 5 | 1.2581 Nws | P20 | 35CrMo7 | 1.2738 ib | 1.2316 ib | M2 |
|
Bearing Steel | Gcr4 | GCr15 | 5 2100 | SUJ 1 | SUJ 2 | 100 cr6 | 1.2067 Nws |
|
| 55c ua | 8 620h | 4 320h | ib 9310 | 440c ua | M50 | 9 310h |
|
Carbon Steel | 1045 ib | 1035 ib | 1020 | q235 ua | A36 | ASTM A36 | SIB 400 |
|
| S45 C | S35 C | S20C | SIB 41 | Qhov 37-2 | 1.040 2 | S235 JR |
