ASTM A302 GR.B Mn-Mo Alloy Pressure Vessel Steel Plate

ʻO ASTM A302 ka kikoʻī maʻamau no nā pā ipu kīʻaha i ke kila kila, manganese molybdenum a me manganese-molybdenum-nickel.
ʻO ASTM A302 kahi ʻano haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa e uhi ana i 4 mau māka like ʻole (A, B, C, D), ʻo ka papa C a me D ka haku mele Ni, me ka mānoanoa like, ka hua a me ka ikaika tensile o ka Papa C ka like o ka Papa B, ʻoiai ʻoi aku ka kiʻekiʻe o ka elongation rate o ka papa C.
ʻO ka pā kila A302 Grade B e hoʻolako maʻamau i ke kūlana like-rolled. Hiki ke kauoha ʻia nā papa ma ke ʻano maʻamau a hoʻomaha ʻia ke kaumaha, a i ʻole nā ​​​​mea ʻelua. Inā ʻo A 302 Grade B ma luna o 50mm i ka mānoanoa e hoʻohālikelike ʻia.
ʻenehana Hoʻohui:   Hōʻike HIC | NACE MR0175 | Z15 | Z25 | Z35 |

Mānoanoa: 6MM a 300MM,
Laulā: 1500mm a 4050mm,
Ka lōʻihi: 3000mm a 15000mm

A302 Māhele B Hui Kemika
Carbon, max	%	Manganese, max	%	Silika, max	%	Sulfur max	%
25mm a lalo paha	0.2	Nānā Wela	1.15-1.50	Nānā Wela	0.15-0.40	Mānoanoa a pau	0.035
25-50mm	0.23	Nānā Huahana	1.07-1.62	Nānā Huahana	0.13-0.45
ma luna o 50mm	0.25
		Molybdenum max	%	Nikela  ka nui	%	Phosphorus	%
		Nānā Wela	0.45-0.60	Nānā Wela	…	Mānoanoa a pau	0.035
		Nānā Huahana	0.41-0.64	Nānā Huahana	…

Mechanical Property of A302 Grade B pā kila	A302 Papa B
Ka ikaika wili, kis [MPa]	80-100 [550-690]
Ka ikaika hua, min, kis [MPa]	50 [345]
Elongation ma 8 iniha [200 mm], min, %	15
Elongation i loko o 2 iniha [50 mm], min, %	18