ASTM A302 GR.B Okpomọkụ Nrụgide Vessel Steel

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ASTM A302 GR.B Mn-Mo Alloy Pressure Vessel Steel Plate nkọwa: Ngwakọta kemịkalụ na arụrụ arụ:

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

Nkọwa ọkọlọtọ ASTM A302 maka efere arịa nrụgide na alloy steel, manganese molybdenum na manganese-molybdenum-nickel.
ASTM A302 bụ ụdị obere alloy steel nkọwapụta na-ekpuchi 4 dị iche iche akara ule (A, B, C, D), Ọkwa C na D nwere chemical mejupụtara Ni, na otu ọkpụrụkpụ, mkpụrụ na tensile ike nke Grade C bụ otu ọkwa. B, ebe elongation ọnụego nke ọkwa C dị elu.
A ga-enyekarị efere igwe A302 ọkwa B n'ọnọdụ akpọrepu. Enwere ike ịnye iwu ka emezigharị efere ma ọ bụ belata nrụgide, ma ọ bụ ha abụọ. Ọ bụrụ na A 302 Ọkwa B n'elu 50mm n'ịdị arọ ka a ga-ahazi.
Nkà na ụzụ mgbakwunye: HIC Ule | NACE MR0175 | Z15 | Z25 | Z35 |

Ọkpụrụkpụ: 6MM ruo 300MM,
Ogologo: 1500mm ruo 4050mm,
Ogologo: 3000mm ruo 15000mm

Ngwakọta kemịkalụ na arụrụ arụ:

A302 Ọkwa B Chemical mejupụtara
Carbon, max	%	Manganese, max	%	Silikoni, max	%	Sulfur max	%
25mm ma ọ bụ n'okpuru	0.2	Nyocha okpomọkụ	1.15-1.50	Nyocha okpomọkụ	0.15-0.40	Ha niile gbara ọkpụrụkpụ	0.035
25-50mm	0.23	Nyocha ngwaahịa	1.07-1.62	Nyocha ngwaahịa	0.13-0.45
ihe karịrị 50 mm	0.25
		Molybdenum max	%	nickel kacha	%	Phosphorus	%
		Nyocha okpomọkụ	0.45-0.60	Nyocha okpomọkụ	…	Ha niile gbara ọkpụrụkpụ	0.035
		Nyocha ngwaahịa	0.41-0.64	Nyocha ngwaahịa	…	Ha niile gbara ọkpụrụkpụ	0.035

Ngwongwo igwe nke A302 Grade B efere igwe	A302 Ọkwa B
Ike tensile, kis [MPa]	80-100 [550-690]
Mpụta ike, min, kis [MPa]	50 [345]
Mgbatị n'ime inch 8 [200 mm], nkeji, %	15
Mgbatị n'ime inch 2 [50 mm], nkeji, %	18