ST52 ST52-3 S355JR S355J0 Upaa wa pande zote wa chuma cha shimoni imara
St52 ni ya chuma cha aloi ya chini ya nguvu ya juu, Sambamba na Uchina ni nyenzo gani st52 ni sawa na Q345B, au 16mn na Q345D.Daraja la chuma sawa ni ST52-3 S355JR S355J0.
Baa ya chuma imetumika katika maeneo ya kila aina, kama vile anga, anga, urambazaji, nishati ya nyuklia, tasnia ya kemikali, habari za kielektroniki, utengenezaji wa mashine, petroli, magari, zana na mita, Mawasiliano, usafirishaji na vyombo vya matibabu, n.k.
Kiwango cha chuma sawa
| Marekani | Kijapani | Gemany | Waingereza | Ufaransa | Kimataifa | Kichina |
| ASTM&AISI&SAE | JIS | EN DIN | EN BS | EN NF | ISO | GB |
| Daraja la 50 | SPFC 590 | S355JR 1.0060 St52-3 | S355JR 1.0060 | S355JR 1.0060 | ------ | Q345 |
Vipimo
| Nchi | China | Japani | Ujerumani | Marekani | UK |
| Kawaida | GB/T 699 | JIS G4051 | DIN (W-Nr.) | AISI/ASTM | EN / BS |
| EN 10083-2 | ASTM A20 | ||||
| Daraja | Q355/Q345 | / | S355/ST52-3/1.1170 | / | EN14/150M19 |
Muundo wa Kemikali (%)
| Nyenzo | ST52 ST52-3 S355JR S355J0 | ||
| Muundo wa Kemikali | Sifa za Mitambo (Katika Hali Iliyozimwa na Kukasirika) | ||
| C | ≤0.20 | Nguvu ya mkazo (MPA) | 470-630 |
| Si | ≤0.55 | Nguvu ya mavuno (MPA) | ≥345 |
| Mn | 1.00-1.60 | Athari (J)(20,0 °C) | ≥34 |
| P | ≤0.040 | Kurefusha(δ5/%) | ≥21 |
| V | 0.02-0.15 | Ugumu | --- |
| S | ≤0.050 | ||
| Nb | 0.015-0.06 | ||
| Ti | 0.02-0.20 | ||
| Al | ≥0.015 | ||
Hali ya utoaji
Kwa baa ya moto iliyoghushiwa au moto iliyoviringishwa, kwa kawaida hali ya uwasilishaji ni moto wa kughushi au umevingirwa, umechomwa, umegeuzwa kuwa mbaya.
Kwa sahani ya moto ya kughushi, kwa kawaida hali ya kujifungua ni moto wa kughushi, wa annealed, milled uso.
Kwa sahani ya moto iliyovingirwa, kwa kawaida hali ya kujifungua ni moto iliyovingirishwa, annealed, uso mweusi.
Bidhaa Zingine Kuu za chuma
|
Aloi ya chuma | 4140 | 4142 | 42CrMo4 | 1.7225 | SCM440 | 4130 | SCM430 |
|
| 34CrNiMo6 | 1.6582 | 4340 | SNCM439 | 36CrNiMo4 | 1.6511 | SACN645 |
|
| SNC236 | 1.7218 | SMn438 | 25CrMo4 | 1340 | SMK22 | SCM421 |
|
Chombo cha Chuma | H13 | 1.2344 | SKD61 | D2 | D3 | 1.2379 | 1.2510 |
|
| 01 | SKS3 | SKD1 | 95MnWCr5 | 1.2419 | SKS31 | H21 |
|
| SKD5 | 1.2581 | P20 | 35CrMo7 | 1.2738 | 1.2316 | M2 |
|
Kuzaa Steel | Gcr4 | GCr15 | 52100 | SUJ1 | SUJ2 | 100Cr6 | 1.2067 |
|
| 55C | 8620H | 4320H | 9310 | 440C | M50 | 9310H |
|
Chuma cha Carbon | 1045 | 1035 | 1020 | Q235 | A36 | ASTM A36 | SS400 |
|
| S45C | S35C | S20C | SS41 | St37-2 | 1.0402 | S235JR |
