GB/T 18248-2021
Tirohanga Whānui
Paerewa: GB/T 18248-2021
Rōpū Tau: 37Mn, 30CrMo, 35CrMo, 42CrMo, 30CrMnSiA, 34CrMo4, me ētahi atu
Matotoru: 1 - 100 mm
Diameter o Waho (Porowhita): 10 - 1000 mm
Roa: Roa pumau, roa matapōkere rānei
Āhua Wāhanga: Porowhita
Te Takenga Mai: Haina
Tiwhikete: ISO9001:2008
Koranu, Kāore rānei: Koranu
Taupānga: Ngongo rango hau
Maimoatanga Mata: Hei whakaritenga a te kiritaki
Tikanga: Hurihia Wera/Tōia Matao
Maimoatanga wera: Te whakamahana/te whakataurite
Paipa Motuhake: Paipa Pakitara Matotoru
Whakamahinga: Ngongo rango hau
Whakamātautau: ET/UT
Tono
Ngā paipa maitai tui kore e whakamahia ana mō te hanga anga o ngā rango hau me ngā pūhiko hau
Taumata Matua
Te Kounga o te maitai hanganga koranu: 37Mn, 30CrMo, 35CrMo, 42CrMo, 30CrMnSiA, 34CrMo4
Waenga Matū
| Te Kaupae Rino | Te hanganga matū | |||||||||
| C | Si | Mn | P | S | 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. Me tutuki i a ia te V + Nb + Ti + B + Zr ≤ 0.15%. b. E ai ki ngā whakaritenga a te kaihoko, whai muri i te whiriwhiringa i waenga i te kaiwhakarato me te kaihoko, me te whakaritenga kua tuhia ki roto i te kirimana, ka taea te tohu ko te Al me nui ake, me ōrite rānei ki te 0.020%. c. Ka taea te tuku ota mō te 30CrMoE, ko tōna hanganga matū he rite ki te 30CrMo. d. Ka taea te tuku ota mō te 42CrMoE, ko tōna hanganga matū he rite ki te 42CrMo. | ||||||||||
Āhuatanga Mīhini
| Tau | Te tikanga maimoatanga wera e taunakitia ana | Ngā āhuatanga ā-pūkaha whakaroa | |||||||
| Te Whakamātao (Te Whakaōrite) | Te whakamahana | kaha kume RmPa | Te kaha hua iti ReLBMPa | Te roa i muri i te whati A% | Te mimiti pūngao pānga | ||||
| pāmahana℃ | Whakamatao | pāmahana ℃ | Whakamatao | Kāore i raro iho i te | Pāmahana whakamātautau ℃ | KV2J Kāore i raro iho i te | |||
| 37Mn | 820-860 | wai | 550-650 | Hau | 750 | 630 | 16 | -50 | 27 |
| 830-870 | Hau | - | - | 700 | 520 | 16 | -20 | 27 | |
| 30CrMo | 860-900 | wai、Hinu | 490-590 | wai、Hinu | 930 | 785 | 12 | -50 | 27 |
| 35CrMo | 830-870 | wai、Hinu | 500-600 | wai、Hinu | 980 | 835 | 12 | -50 | 27 |
| 42CrMo | 830-870 | Hinu | 510-610 | wai、Hinu | 1080 | 930 | 12 | -50 | 27 |
| 30CrMnSiA | 860-900 | Hinu | 470-570 | wai、Hinu | 1080 | 885 | 10 | Te pāmahana rūma | 27 |
| a. Ko te pāmahana whakamātautau kume he pāmahana rūma. b. Mēnā ko ReLkāore e taea te ine, Rwh0.2ka taea te ine i te "m" hei utu mō te "R"eLc. Ina tohua e te kaihoko te 4130X, te 30CrMoE rānei hei tohu mō te tuku, ka taea te whakatakoto i te uara tohutoro o ngā āhuatanga miihini ki te 30CrMo.d. Ina tohua e te kaihoko te taumata 34CrMo4 mō te tuku, ka taea e ngā āhuatanga hangarau te tohu ki te 35CrMo.e. Ina tohua e te kaihoko ngā māka 4142, 42CrMoE rānei mō te tuku, ka taea te whakatakoto i te uara tohutoro o ngā āhuatanga miihini ki te 42CrMo. | |||||||||
Manawanui
| Ngā tikanga hanga paipa maitai | whānuitanga o ngā rahi | Ngā Rerekētanga Whakaaetia o te Diameter o Waho | Te rerekētanga whakaaetia o te matotoru o te pakitara | |
| PA taumata taketake | rorohiko taumata matatau | |||
| Hurihia Wera | D＜339.7 | ±1%D | +25%Mini 0 | +25%Mini 0 |
| D≥339.7 | +30%Mini 0 | +25%Mini 0 | ||
| Kua takaia mātao (kua hurihia) Ppipe | katoa | ±0.75%D | +22.5%Minimita 0 | +15%Mini 0 |
Whakaritenga Whakamātautau
Haunga te whakarite i te hanganga matū me ngā āhuatanga hangarau, ka whakahaerehia hoki ngā whakamātautau waipēhi, ngā tirotiro hikohiko, ngā whakamātautau whakaurunga kore-whakarewa, me ngā whakamātautau kore-whakangaro (whakamātautau ultrasonic me te whakamātautau matūriki aukume).
Te Āheinga Tuku
Te Kaha Tuku: 2000 Tāne ia Marama ia Tau o te Paipa Rino Koranu GB/T18248-2021
Tākai
I roto i ngā paihere me te pouaka rakau kaha
Tukunga
7-14 ngā rā mēnā kei roto i te taonga, 30-45 ngā rā hei whakaputa
Utu
30% tāpui, 70% L/C, tārua B/L rānei, 100% L/C rānei i te tirohanga
Ngongo Pūwero
ASME SA-106/SA-106M-2015
ASTMA210(A210M)-2012
ASME SA-213/SA-213M
