GB/T 18248-2021
Isishwankathelo
Umgangatho: GB/T 18248-2021
Iqela leBanga: 37Mn，30CrMo，35CrMo，42CrMo，30CrMnSiA，34CrMo4, njl.
Ubukhulu: 1 - 100 mm
Ububanzi obungaphandle (Isangqa): 10 - 1000 mm
Ubude: Ubude obuzinzileyo okanye ubude obungacwangciswanga
Imilo yeCandelo: Ijikelezile
Indawo Yokuqala: eTshayina
Isiqinisekiso: ISO9001:2008
I-Alloy okanye Hayi: I-Alloy
Isicelo: Ityhubhu yesilinda yegesi
Unyango Lomphezulu: Njengoko kufuneka kumthengi
Indlela yokusebenza: Itsalwe ngobushushu/ngobandayo
Unyango lobushushu: Ukufakela/ukulungisa
Umbhobho oKhethekileyo: Umbhobho wodonga oThixekileyo
Ukusetyenziswa: Ityhubhu yesilinda yegesi
Uvavanyo: ET/UT
Isicelo
Iipayipi zentsimbi ezingenamthungo ezisetyenziselwa ukwenza amaqokobhe eesilinda zegesi kunye nee-accumulators
Ibanga eliPhambili
Ibanga leNtsimbi yoLwakhiwo lwe-Alloy: 37Mn，30CrMo，35CrMo，42CrMo，30CrMnSiA，34CrMo4
Icandelo leKhemikhali
| Ibanga lentsimbi | Ukwakheka kweekhemikhali | |||||||||
| C | Si | Mn | P | S | I-P+S | Cr | Mo | Ni | Cu | |
| 37Mna | 0.34～0.38 | 0.10～0.35 | 1.35～1.75 | ≤0.020 | ≤0.010 | ≤0.025 | ≤0.30 | - | ≤0.30 | ≤0.20 |
| 30CrMoa,c | 0.26～0.33 | 0.17～0.37 | 0.40～0.70 | ≤0.020 | ≤0.010 | ≤0.025 | 0.80～1.10 | 0.15～0.25 | ≤0.30 | ≤0.20 |
| 35CrMoa | 0.32～0.40 | 0.17～0.37 | 0.40～0.70 | ≤0.020 | ≤0.010 | ≤0.025 | 0.80～1.10 | 0.15～0.25 | ≤0.30 | ≤0.20 |
| 42CrMoa,d | 0.38～0.45 | 0.17～0.37 | 0.50～0.80 | ≤0.020 | ≤0.010 | ≤0.025 | 0.90～1.20 | 0.15～0.25 | ≤0.30 | ≤0.20 |
| 30CrMnSiA | 0.28～0.34 | 0.90～1.20 | 0.80～1.10 | ≤0.020 | ≤0.020 | ≤0.030 | 0.80～1.10 | ≤0.10 | ≤0.30 | ≤0.20 |
| 34CrMo4 | 0.30～0.37 | 0.15～0.35 | 0.60～0.90 | ≤0.020 | ≤0.010 | ≤0.025 | 0.90～1.20 | 0.15～0.30 | ≤0.30 | ≤0.20 |
| a. Ifanele yanelise u-V + Nb + Ti + B + Zr ≤ 0.15%. b. Ngokweemfuno zomthengi, emva kwengxoxo phakathi komthengisi nomthengi, kunye nommiselo ochazwe kwisivumelwano, kungachazwa ukuba i-Al kufuneka ibe ngaphezulu okanye ilingane ne-0.020%. c. Iiodolo zingafakwa kwi-30CrMoE, apho ukwakheka kwayo kweekhemikhali kufana nokwe-30CrMo. d. Iiodolo zingafakwa kwi-42CrMoE, apho ukwakheka kwayo kweekhemikhali kufana nokwe-42CrMo. | ||||||||||
Ipropati yoomatshini
| Ibanga | Indlela yokunyanga ubushushu ecetyiswayo | Iipropati zoomatshini ezinde | |||||||
| Ukucima (Ukulungisa) | Ukunciphisa | tensile strength RmPa | Amandla emveliso aphantsi ReLBI-MPa | Ukwandiswa emva kokuqhekeka kwe-A% | Ukufunxwa kwamandla empembelelo | ||||
| ubushushu℃ | Isibandisi | ubushushu obuphantsi | Isibandisi | Akukho ngaphantsi kwe | Ubushushu bovavanyo℃ | KV2J Akukho ngaphantsi kwe | |||
| 37Mn | 820-860 | amanzi | 550-650 | Umoya | 750 | 630 | 16 | -50 | 27 |
| 830-870 | Umoya | - | - | 700 | 520 | 16 | -20 | 27 | |
| 30CrMo | 860-900 | amanzi、Ioyile | 490-590 | amanzi、Ioyile | 930 | 785 | 12 | -50 | 27 |
| 35CrMo | 830-870 | amanzi、Ioyile | 500-600 | amanzi、Ioyile | 980 | 835 | 12 | -50 | 27 |
| 42CrMo | 830-870 | Ioyile | 510-610 | amanzi、Ioyile | 1080 | 930 | 12 | -50 | 27 |
| 30CrMnSiA | 860-900 | Ioyile | 470-570 | amanzi、Ioyile | 1080 | 885 | 10 | Ubushushu begumbi | 27 |
| a. Ubushushu bovavanyo lokuxinana bebubushushu begumbi.b.Ukuba ReLayinakulinganiswa, Rp0.2ingaba ndingu-mna endaweni ka-ReLc.Xa umthengi echaza i-4130X okanye i-30CrMoE njengomgangatho wokuhanjiswa, ixabiso lesalathiso seempawu zoomatshini linokusekelwa kwi-30CrMo.d.Xa umthengi echaza inqanaba le-34CrMo4 lokuhanjiswa, iimpawu zoomatshini zingabhekisa kwi-35CrMo.e.Xa umthengi echaza amabakala angama-4142 okanye angama-42CrMoE okuhanjiswa, ixabiso lesalathiso seempawu zoomatshini lingasekelwa kwi-42CrMo. | |||||||||
Ukunyamezelana
| Iindlela zokuvelisa imibhobho yentsimbi | uluhlu lobukhulu | Utshintsho oluvumelekileyo kububanzi bangaphandle | Ukuphambuka okuvumelekileyo kobukhulu bodonga | |
| I-PA yenqanaba elisisiseko | iPC ekumgangatho ophezulu | |||
| Ishushu Eqengqelekayo | D＜339.7 | ±1%D | +25% Umzuzu 0 | +25% Umzuzu 0 |
| D≥339.7 | +30% Umzuzu 0 | +25% Umzuzu 0 | ||
| Itsalwe ngokubandayo (iqengqekile) Ipayipi yePPipe | konke | ±0.75%D | +22.5%Umzuzu 0 | +15%Umzuzu 0 |
Imfuneko yoVavanyo
Ukongeza ekuqinisekiseni ukwakheka kweekhemikhali kunye neempawu zoomatshini, kuya kwenziwa uvavanyo lwe-hydraulic, ukuhlolwa kwe-electromagnetic, uvavanyo lwe-inclusions ezingezizo zesinyithi, kunye novavanyo olungonakalisiyo (uvavanyo lwe-ultrasonic kunye novavanyo lwee-particle ze-magnetic) nazo ziya kwenziwa.
Amandla okubonelela
Amandla okubonelela: Iitoni ezingama-2000 ngenyanga ngebanga ngalinye le-GB/T18248-2021 Alloy Steel Pipe
Ukupakisha
Kwiibhanti nakwibhokisi yomthi eqinileyo
Ukuhanjiswa
Iintsuku eziyi-7-14 ukuba zikhona esitokhweni, iintsuku ezingama-30-45 zokuvelisa
Intlawulo
Idiphozithi engama-30%, ikopi engama-70% ye-L/C okanye ye-B/L okanye i-100% ye-L/C xa ibonwa
Umbhobho weBoiler
I-ASME SA-106/SA-106M-2015
I-ASTMA210(A210M)-2012
I-ASME SA-213/SA-213M
