Wazi ntoni malunga nokubunjwa kwe-A105?

Igama eliqhelekileyo: i-carbon steel forgings yeendawo zombhobho.
Kuba uhlobo olunye kuphela carbon steelukwenzaichazwe kulo mgangatho, i-A105 nayo ithathwa njengenqanaba le-carbon steel lokubumba.
I-A105 nayo ikhowudi yezinto eziphathekayo, eyeyentsimbi ekhethekileyo kwaye iyintsimbi ebandayo.
A105yintsimbi yentsimbi ephantsi, efana nentsimbi engama-20. Kukho imigangatho emibini, omnye ngumgangatho waseMelika weASTM A105/A105M weCarbon Steel Forgings for Piping Components, kwaye omnye ngumgangatho waseTshayina we-GB/T12228-2006 iMiqathango yobuGcisa yeCarbon Steel Forgings kwiVavelu yeNjongo Jikelele.
Ibanga lezinto eziphathekayo: I-A105 Standard: I-ASTM A105 I-Carbon steel forgings yamacandelo enkqubo yombhobho Ilizwe kunye nommandla: Iqela lensimbi yase-USA: uthelekiso lwensimbi yesakhiwo: 1.0402 EuropeanUnion / EN uthelekiso 1.0406 EuropeanUnion / EN uthelekiso 1.0477 EuropeanUnion / EN comparison 1 EuropeanUnion / EN comparison 1. EN uthelekiso

Ukuqamba

C: ≤ 0.35, Si: ≤ 0.35, Mn: 0.6-1.05 ,S: ≤ 0.050, P: ≤ 0.040, Cu ≤ 0.4, Ni ≤ 0.4, Mo ≤ 0.8≤ 0.8≤ 0.
Iipropati zoomatshini ziphakathi kwe-20 # yentsimbi ekhandiweyo kunye ne-16Mn yentsimbi eyenziweyo.
Iipropati zoomatshini (Mpa)
Amandla okuqina: ( σ b）≥485Mpa
Amandla esivuno ( σ s)≥250Mpa
Ubude obungasemva (δ)≥ 22%
Ukuncipha kwendawo ( ψ)≥ 30%
Ukuqina ≤ HB187

I-A105 yentsimbi yesakhiwo sekhabhoni
I-A105 yinombolo yomgangatho we-ASTM yaseMelika, i-ASTM A105 / A105M i-carbon steel forgings yamacandelo emibhobho, kwaye i-A imele i-carbon structural steel eqhelekileyo. Yeyentsimbi ekhethekileyo kwaye luhlobo lwentsimbi ebandayo eyenziwe ngomkhandi. I-A105 yintsimbi ephantsi ye-carbon steel forging, efana nentsimbi ye-20.
Qaphela: Kwinkqubo yepayipi, ngokubanzi i-A105 ingathatha indawo yeNombolo ye-20, kodwa iNombolo ye-20 ayinakuthatha indawo ye-A105 ngokupheleleyo, kuba umahluko wamandla usemkhulu. Nangona kunjalo, uxinzelelo lwe-corrosion cracking (SCC) ukuchasana kwe-A105 lubi kakhulu kunolo lweNombolo ye-20.

I-A105 Yeyiphi impahla eyahlukileyo kwintsimbi engama-20
I-A105 yintsimbi ephantsi yekhabhoni. Umxholo wekhabhoni we-carbon structural iron umalunga ne-0.05% ~ 0.70%, kwaye ezinye zingaba phezulu njenge-0.90%. I-A105 yinombolo ye-ASTM yaseMelika, kwaye i-A imele i-carbon structural iron eqhelekileyo. Kulo mgangatho, kuphela uhlobo olulodwa lwe-carbon steel forging lucacisiwe, kwaye i-A105 nayo ithathwa njengenqanaba le-carbon steel grade forging. I-A105 nayo ikhowudi yezinto eziphathekayo, eyeyentsimbi ekhethekileyo kwaye iyintsimbi ebandayo. I-A105 yintsimbi ephantsi ye-carbon steel forging, efana nentsimbi ye-20. Kukho imigangatho emibini, omnye ngumgangatho waseMelika weASTM A105/A105M weCarbon Steel Forgings for Piping Components, kwaye omnye ngumgangatho waseTshayina we-GB/T12228-2006 iMiqathango yobuGcisa yeCarbon Steel Forgings kwiVavelu yeNjongo Jikelele. Umxholo wekhabhoni we-carbon structural iron umalunga ne-0.05% ~ 0.70%, kwaye ezinye zingaba phezulu njenge-0.90%. Kwinkqubo yombhobho, ngokuqhelekileyo i-A105 ingathatha indawo yeNombolo ye-20, kodwa iNombolo ye-20 ayinakuthatha indawo ye-A105 ngokupheleleyo, kuba umahluko wamandla usemkhulu. Nangona kunjalo, uxinzelelo lwe-corrosion cracking (SCC) ukuchasana kwe-A105 lubi kakhulu kunolo lweNombolo ye-20.
Inokwahlulwa ibe yintsimbi eqhelekileyo ye-carbon structural kunye ne-high-quality carbon structural steel. Inosetyenziso oluninzi kwaye isebenzisa isixa esikhulu. Isetyenziswa ikakhulu kumzila kaloliwe, ibhulorho, iiprojekthi ezahlukeneyo zokwakha, ukuvelisa amacandelo esinyithi ahlukeneyo athwala imithwalo engatshintshiyo, kunye neenxalenye zoomatshini ezingabalulekanga kunye neentsimbi eziqhelekileyo ezingadingi unyango lobushushu.