ʻO ASTM A234 WPB & WPC paipu paipu me nā kuʻekuʻe lima, tee, nā mea hoʻemi
Ka Hui Kimia o ASTM A234 WPB & WPC
ʻElemu | Maʻiʻo, % | |
ASTM A234 WPB | ASTM A234 WPC | |
Kalapona [C] | ≤0.30 | ≤0.35 |
Manganese [Mn] | 0.29-1.06 | 0.29-1.06 |
ʻŌpala [P] | ≤0.050 | ≤0.050 |
Sulfur [S] | ≤0.058 | ≤0.058 |
Silika [Si] | ≥0.10 | ≥0.10 |
Chromium [Cr] | ≤0.40 | ≤0.40 |
Molybdenum [Mo] | ≤0.15 | ≤0.15 |
Nikela [Ni] | ≤0.40 | ≤0.40 |
keleawe [Cu] | ≤0.40 | ≤0.40 |
Vanadium [V] | ≤0.08 | ≤0.08 |
*ʻAʻole ʻoi aku ka nui o ka Carbon Equivalent [CE=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15] ma mua o 0.50 a e hōʻike ʻia ma MTC.
Nā Pono Mechanical o ASTM A234 WPB & WPC
Nā papa helu ASTM A234 | Paʻa Paʻa, min. | Ka ikaika hua, min. | Elongation %, min | |||
ksi | MPa | ksi | MPa | Ka lōʻihi | Kūʻē | |
WPB | 60 | 415 | 35 | 240 | 22 | 14 |
WPC | 70 | 485 | 40 | 275 | 22 | 14 |
*1.ʻO nā mea paipu WPB a me WPC i hana ʻia mai nā papa e loaʻa ka liʻiliʻi o 17%.
*2.Inā ʻaʻole koi ʻia, ʻaʻole pono e hōʻike ʻia ka waiwai paʻakikī.
Hana ʻia
Hiki ke hana ʻia nā paipu kalapona kalapona ASTM A234 mai nā paipu liʻiliʻi, nā paipu welded a i ʻole nā palapala ma ka hana ʻana i nā hana o ke kaomi ʻana, piercing, extruding, bending, fusion welding, machining, a i ʻole ma ka hui ʻana o ʻelua a ʻoi aku paha kēia mau hana.ʻO nā welds āpau me nā welds i loko o nā huahana tubular kahi i hana ʻia ai nā mea pono e hana ʻia e like me ka ASME Section IX.Hoʻomaʻamaʻa wela ma hope o ka weld ma 1100 a 1250 ° F [595 a 675 ° C] a me ka hoʻokolokolo radiographic e hana ʻia ma hope o ke kaʻina hana kuʻi.