Te whakakī anō i ngā ota hangarau, te paipa maitai koranu huaA333 GR6, ko te whakatakotoranga he 168.3*7.11, āpaipa maitai waro GB/T9948, 20#, ko te whakatakotoranga he 114.3*6.02, me ētahi atu.

Kei raro nei ngā paerewa me ngā rauemi ka pā ki ngā ota hangarau:

20# GB8163 paipa maitai kore wai

He aha te tikanga o te rauemi paipa maitai tuimotu? Ko te rauemi hoki te momo e kīia pinepinetia ana e tātou, pērā i te 20#, 45#, e tohu ana i tōna hanganga matū me ngā āhuatanga hangarau pērā i te kaha kume, te kaha tuku, me te tere whakawhānui. Ko ngā rauemi paipa maitai tuimotu e whakamahia whānuitia ana, ngā paerewa whakaputa me ngā whakamahinga i whakarāpopototia e te kaituhi.

1.GB/T8162-2018, Ngā paipa maitai hanganga kore hononga, e whakamahia ana i roto i te hangarau hanganga whānui, te tukatuka miihini, te hanga me ētahi atu mara. Ngā rauemi e tohu ana: 20#, 45#, q345b, 40Cr, 42CrMo, me ētahi atu;

2. GB/T8163-2018, paipa maitai kore hononga mō te kawe wai, e whakamahia ana mō te hangarau paipa me te pēhanga iti. Rauemi e tohu ana: 20#, q345b;
Paipa maitai hanganga 45# GB8162

3.GB/T3087-2017, ngā paipa rino kore-ira mō ngā kohua pēhanga iti me te pēhanga waenga, e whakamahia ana mō te hanga i ngā hanganga rerekē o ngā paipa mamaoa wera rawa, ngā paipa wai kohua mō ngā kohua pēhanga iti me te pēhanga waenga, me ngā paipa mamaoa wera rawa me ngā paipa pereki āwhata mō ngā kohua tereina. Ngā rauemi e tohu ana: 10#, 20#, Q355B;
Ngongo poihau pēhanga teitei GB5310, rauemi 12Cr1MovG

4. GB/T5310-2017, ngā paipa maitai kore hononga mō ngā kohua pēhanga teitei, e whakamahia ana mō te mata whakamahana o ngā kohua ngongo wai me te pēhanga teitei me runga ake. Kei reira ngā paipa maitai waro, te maitai koranu me te maitai kore hononga ātete wera. Ngā rauemi e tohu ana: 20G, 15CrMoG, 12Cr1MoVG, me ētahi atu;

5. GB/T6479-2018, ngā paipa maitai kore-pēhanga teitei mō ngā taputapu tongi matū, e whakamahia ana mō ngā taputapu matū me ngā paipa me te pāmahana mahi o -40~400°C me te pēhanga mahi o 10~30Ma. He paipa maitai kore-pēhanga waro me te maitai koranu. Rauemi tohu: q345a-bcde, 20#, 10mowvnb, 15CrMo;

6. GB/T9948-2013, ngā paipa rino kore hononga mō te pakaru hinu, e whakamahia ana mō ngā ngongo oumu, ngā whakawhiti wera me ngā paipa i roto i ngā whare hanga hinu. Rauemi e tohu ana: 10#, 20#, Q345, 15CrMo;