Q345D haʻahaʻa wela kūpaʻa kila paipu hōʻoia maikaʻi
ʻO nā waiwai mechanical piha maikaʻi, ka weldability, ka hana anu a me ka wela a me ka pale ʻana i ka corrosion, a me ka paʻakikī haʻahaʻa haʻahaʻa
ʻO nā moku, nā paila, nā moku kaomi, nā pahu mālama aila, nā alahaka, nā lako mana, nā mīkini hoʻokiʻekiʻe a me nā mīkini lawe a me nā ʻāpana hana welded me ka ukana kiʻekiʻe
18nb pepehi kila i loko o Nb, me nā waiwai e like me 14MnNb, hoʻohana nui ʻia no nā cranes, blowers, mīkini kemika, etc.
09mncupti atmospheric corrosion kū'ē kila i maikaʻi haʻahaʻa-mehana hopena toughness, weldability a me ke anu a me ka wela workability. Hoʻohana nui ʻia ia no nā ʻano mīkini āpau i nā wahi haʻahaʻa a me ka ua a me ke kaiapuni corrosive
12mnv haʻahaʻa haʻahaʻa haʻahaʻa kila me ka hana wela o - 70 ℃ hoʻohana nui ʻia no nā ʻāpana hana o ka mīkini hoʻoheheʻe e hana ana i ka haʻahaʻa haʻahaʻa.
He mau waiwai like ka 14MnNb me ke kila 18nb a hoʻohana nui ʻia no nā moku a me nā ʻāpana ʻē aʻe me ka mahana hana o - 20-450 ℃
Loaʻa iā 16Mn nā waiwai mīkini piha maikaʻi, ka hana haʻahaʻa haʻahaʻa, ka hana hoʻoheheʻe anu, ka hana kuʻi ʻana a me ka machinability. Hoʻohana nui ʻia ia i ka mining, ka lawe ʻana, ka ʻoihana kemika a me nā mīkini ʻē aʻe
Ua like nā waiwai o 16mnre me ke kila 16Mn, ʻoi aku ka maikaʻi o ka paʻakikī o ka hopena a me nā waiwai kulou anuanu ma mua o 16Mn, a ua like ke kumu me ke kila 16Mn.
ʻO ka paipu kila Q345D kekahi o nā mea o ka paipu kila.
Q345D paipu kila
Q345D paipu kila
ʻO Q345A, Q345B, Q345C, Q345D a me Q345E nā māka maikaʻi. Hoʻonui lākou mai ka a i ka e, ma muli o ka ʻokoʻa o ka wela hopena i hoʻokumu ʻia e nā mea like ʻole o nā mea micro e like me ka phosphorus a me ka sulfur, e hōʻike ana i ka ʻokoʻa o ka hopena hopena a me nā waiwai mechanical o ka hoʻohuihui kemika paipu.
Q345A, ʻaʻohe hopena; Q345B, 20 ° ka hopena wela maʻamau; Q345C, 0 degere ka hopena; Q345D, he - 20 degere ka hopena; ʻO Q345E - 40 degere ka hopena. Ma nā wela hopena like ʻole, ʻokoʻa nā koina hopena.
ʻAʻole emi ka ikaika o ka hua ma mua o 345mp, a ke hōʻike nei ka pae maikaʻi i loko o nā mea haumia (carbon, manganese, silicon, sulfur a me phosphorus). ʻO ka nui o nā mea haumia (element) i ke kila. ʻO ka hope o ka A, B, C a me D, ʻoi aku ka liʻiliʻi o ka maʻi haumia
Loaʻa i ka Q345A ka phosphorus a me ka sulfur ma lalo a i ʻole like me 0.045%
Loaʻa i ka Q345B ka phosphorus a me ka sulfur ma lalo a i ʻole like me 0.040%
Loaʻa i ka Q345C ka phosphorus a me ka sulfur ma lalo a i ʻole like me 0.035%
Loaʻa i ka Q345D ka phosphorus a me ka sulfur ma lalo a i ʻole like me 0.030%
Loaʻa i ka Q345E ka phosphorus a me ka sulfur ma lalo a i ʻole like me 0.025%
ʻOi aku ka nui o ka phosphorus a me ka sulfur i loko o ke kila, ʻoi aku ka maikaʻi o ka paʻakikī o ka hopena
Q345A -
Q345B Akv ʻaʻole emi ma lalo o 34 ma 20 ℃
Ma Q345C 0 ℃, Akv ʻaʻole e emi ma lalo o 34
Q345D - Akv ʻaʻole emi ma lalo o 34 ma 20 ℃
Ma Q345E - 40 ℃, ʻaʻole emi ka Akv ma lalo o 27
ʻO ke kumu hope loa, ʻo ka emi ʻana o ka P a me nā haumia i loko o ke kila e hoʻoikaika i ka hoʻomaikaʻi ʻana i ka paʻakikī o ka hopena i ka haʻahaʻa haʻahaʻa. ʻO kekahi ka mea hana kemika o Q345 a ʻo ka mea ʻē aʻe ka waiwai mechanical o Q345.
C:≤0.18 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.030 S:≤0.030 Ni:≤0.30 Cr≤0.30 Cu:≤0.20 Al:≥0.015 V:0.05-0.0.0
ʻO ka hui kemika o Q345B paipu ʻole:
C:0.12-0.20 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.040 S:≤0.040 Ni:≤0.30 Cr:≤0.30 Cu:≤0.20 V:0.02-0.15 Nb:0.015 Nb:0.015
ʻO ka hui kemika o Q345A paipu ʻole:
C:0.12-0.20 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.045 S:≤0.045 Ni:≤0.30 Cr:≤0.30 Cu:≤0.20 V:0.02-0.15 Nb:0.015 Nb:0.015
ʻO ka hui kemika o ka paipu liʻiliʻi Q345C:
C:0.12-0.20 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.035 S:≤0.035 Ni:≤0.30 Cr:≤0.30 Cu:≤0.20 Al:≥0.015 V:0.015 V:0.052
ʻO ka hui kemika o Q345E paipu ʻole:
C:≤0.18 Si:0.20-0.60 Mn:1.00-1.60 P:≤0.025 S:≤0.025 Ni:≤0.30 Cr≤0.30 Cu:≤0.20 Al:≥0.015 V:0.025-0.0.0
Mechanical waiwai o Q345D seamless kila paipu:
Ka ikaika tensile: 490-675 ikaika hua: ≥ 345 elongation: ≥ 22
Mechanical waiwai o Q345B seamless paipu:
Ka ikaika tensile: 490-675 ikaika hua: ≥ 345 elongation: ≥ 21
Mechanical waiwai o Q345A seamless paipu:
Ka ikaika tensile: 490-675 ikaika hua: ≥ 345 elongation: ≥ 21
Mechanical waiwai o Q345C seamless paipu:
Ka ikaika tensile: 490-675 ikaika hua: ≥ 345 elongation: ≥ 22
Mechanical waiwai o Q345E seamless paipu:
Ka ikaika tensile: 490-675 ikaika hua: ≥ 345 elongation: ≥ 22