I-API 5Lumbhobho wentsimbi yombhobho
Ibanga lentsimbi: L360 okanye X52 (PSL1)
Iimfuno zokwakheka kweekhemikhali:
C: ≤0.28 (ayinamthungo) ≤0.26 (idityaniswe ngentsimbi)
Mn: ≤1.40
P: ≤0.030
S: ≤0.030
I-Cu: 0.50 okanye ngaphantsi
I-Ni: ≤0.50
I-Cr: ≤0.50
Unyaka: ≤0.15
*V+Nb+Ti: ≤0.15
* Umxholo weManganese unganyuswa nge-0.05% xa kuncitshiswa umxholo wekhabhoni nge-0.01%, ukuya kuthi ga kwi-1.65%
Iimfuno zeempawu zoomatshini:
Amandla okuvelisa: ≥360Mpa
Amandla okuxinana: ≥460Mpa
Amandla okuxinana kwepayipi yentsimbi edityanisiweyo: ≥460Mpa
Ukwandiswa: ≥1940* AXC0.2/4600.9, apho i-AXC yindawo enqamlezileyo yesampulu yokuxinana
Ukunyamezelana kobubanzi bangaphandle bombhobho wentsimbi:
| Ububanzi obungaphandle D mm | Isiphelo ngaphandle kobubanzi bokuphambuka mm | |
| Umbhobho wentsimbi ongenamthungo | Umbhobho wentsimbi odibeneyo | |
| < 60.3 | -0.8, +0.4 | |
| 60.3 D okanye ngaphantsi 168.3 okanye ngaphantsi | -0.4, +1.6 | |
| 168.3 < D≤610 | ±0.005D, kodwa ubuninzi ±1.6 | |
| 610 < D≤1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Ngesivumelwano | |
Udonga ubukhulu ukunyamezelana of intsimbi umbhobho:
| Ubukhulu bodonga t mm | Ukunyamezelana mm |
| Umbhobho wentsimbi ongenamthungo | |
| 4.0 okanye ngaphantsi | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25 okanye ngaphezulu | +3.7 okanye +0.1t, nokuba yeyiphi na enkulu -3.0 okanye -0.1t, thabatha enkulu |
| Ityhubhu edibeneyo | |
| 5.0 okanye ngaphantsi | + / - 0.5 | |
| 5.0 | < t < 15 | I-Plus okanye i-minus 0.1 t |
| 15 | okanye ngaphezulu | + / - 1.5 |
Intsimbi ibakala: L360N or X52N(PSL2)
Ikhemikhali ukwakheka iimfuno:
C: ≤0.24
I-Si: ≤0.45
Mn: ≤1.40
P: ≤0.025
S: ≤0.015
V: ≤0.10
Inombolo yesazisi:≤0.05
Ixabiso: ≤0.04
I-Cu: ≤0.50
I-Ni: ≤0.30
I-Cr: ≤0.30
Unyaka: ≤0.15
V+Nb+Ti: ≤0.15
* Umxholo weManganese unganyuswa nge-0.05% xa kuncitshiswa umxholo wekhabhoni nge-0.01%, ukuya kuthi ga kwi-1.65%.
* Akukho kongezwa ngabom kwe-boron okuvunyelweyo, intsalela ye-B≤0.001%
Ikhabhoni elilinganayo:
I-CEP cm: ≤0.25
I-CEIIW: ≤0.43
* Sebenzisa i-CE xa umxholo wekhabhoni ungaphezulu kwe-0.12%, kwaye sebenzisa i-CE IIW xa i-P cm ingaphantsi okanye ilingana ne-0.12%.
CEP cm = C+Si/30+Mn/20+Cu/20+Ni/60+Cr/20+Mo/15+V/10+5B
Ukuba iziphumo zohlalutyo lokunyibilikisa i-B zingaphantsi kwe-0.0005%, akukho mfuneko yokubandakanya uhlalutyo lwe-element B kuhlalutyo lwemveliso, kwaye umxholo we-B unokuthathwa njengo-zero kwi-carbon equivalent CEP cm calculation.
CEIIW =C+Mn/6 (C+Mo+V)/5+(Ni+Cu)/ 15
Oomatshini iipropati iimfuno:
Amandla okuvelisa: 360-530Mpa
Amandla okutsalwa: 460-760Mpa
Umlinganiselo wesivuno: ≤0.93 (usebenza kuphela kumbhobho wentsimbi ongu-D > 323.9mm)
Amandla okuxinana kwepayipi yentsimbi edityanisiweyo: ≥460Mpa
Ubuncinane bokwandiswa: = 1940* AXC0.2/4600.9 , apho i-AXC yindawo enqamlezileyo yesampulu yokutsalwa.
Uvavanyo lwempembelelo ye-CVN kwityhubhu
Ubushushu bovavanyo 0 。C
| Cacisa ububanzi obungaphandle be-D mm | Ubungakanani obupheleleyo beCVNAmandla afunxiweyoI-KVJ |
| 508 okanye ngaphantsi | 27 |
| > 508 ukuya kwi-762 | 27 |
| > 762 ukuya ku-914 | 40 |
| > 914 ukuya ku-1219 | 40 |
| > 1219 ukuya ku-1422 | 40 |
| > 1422 ukuya ku-2134 | 40 |
Ngaphandle ububanzi ukunyamezelana of intsimbi umbhobho:
| Ububanzi obungaphandle D mm | Isiphelo ngaphandle kobubanzi bokuphambuka | |
| Umbhobho wentsimbi ongenamthungo | Umbhobho wentsimbi odibeneyo | |
| < 60.3 | -0.4, +0.8 | |
| 60.3 D okanye ngaphantsi 168.3 okanye ngaphantsi | -0.4, +1.6 | |
| 168.3 < D=610 | ±0.005D, kodwa ubuninzi ±1.6 | |
| 610 < D=1422 | + / - 2.0 | + / - 1.6 |
| > 1422 | Ngesivumelwano | |
Udonga ubukhulu ukunyamezelana of intsimbi umbhobho:
| Ubukhulu bodonga t mm | Ukunyamezelana |
| Umbhobho wentsimbi ongenamthungo | |
| 4.0 okanye ngaphantsi | +0.6, -0.5 |
| 4 < t < 25 | +0.150t, -0.125t |
| 25 okanye ngaphezulu | +3.7 okanye +0.1t, nokuba yeyiphi na enkulu -3.0 okanye -0.1t, thatha enkulu |
| Umbhobho odibeneyo | |
| 5.0 okanye ngaphantsi | + / - 0.5 |
| 5.0 < t < 15 | I-Plus okanye i-minus 0.1 t |
| 15 nangaphezulu | + / - 1.5 |
Ixesha lokuthumela: Septemba-26-2023
