ASTM A871 / A871M ígwè

Nkọwapụta ASTM A871 bụ ọkọlọtọ ọkọlọtọ maka efere nchara siri ike dị ala na-eguzogide corrosion ikuku nke ejiri n'ime ụlọ tubular na okporo osisi. Ọkwa 60 na 65 dị n'ụdị akpọrepu, ahazigharịrị, ma ọ bụ menyụọ yana ọnọdụ nnyefe dị ka achọrọ iji nweta akụrụngwa arụrụ arụpụtara akọwapụtara.

Nkọwapụta:
Ọkpụrụkpụ: 3mm-150mm
Obosara: 30mm-4000mm
Ogologo: 1000mm--12000mm
Ọkọlọtọ: ASTM EN10025 JIS GB

Enwere ike ịnye A871 ọkwa 65 ka akpọrepu, hazie ma ọ bụ menyụọ na iwe.

A871-65 Nnweta
	Okpokoro	Obosara	Ogologo
A871-65	3/16" - 1 1/4"	48"-120"	96"-650"

ASTM A871 Ọkwa 65 Chemical mejupụtara

A871-65 Ihe mejupụtara igwe
	A871-65
Carbon	0.17-0.2%
Manganese	0.5-1.35%
Phosphorus	0.03%
sọlfọ	0.03%
Silikoni	0.15-0.65%
Nickel	0.4-0.5%
Chromium	0.4-0.7%
Molybdenum	0-0.1%
Ọla kọpa	0.20-0.50%
Vanadium	0.01-0.1%
Columbus	0-0.05%

A871 Ọkwa 60 Ngwakọta kemịkalụ % nke nyocha ngwaahịa ọkwa

A871 Ọkwa 60 Ihe mejupụtara kemịkalụ sitere na ụdịI
Ọkwa	A871 Ọkwa 60  Ihe kachasị (%)
	C	Mn	P	S	Si	Ni	Cr	Mo
A871 Ọkwa 60	0.19	0.80-1.35	0.04	0.05	0.30-0.65	0.40	0.40-0.70	--
	Ku	V	Nb
	0.25-0.40	0.02-0.10	---

A871 Ọkwa 60 Mechanical Property

Ọkwa	Ike mpụta (Mpa) Min	ike tensile (Mpa) Min
A871 Ọkwa 60	415	520
	elongation (200mm) Nkeji	elongation (50mm) Nkeji
	16%	18%

1.       A871 Ọkwa 60 Oge nnyefe ma ọ bụ oge mbu: 15-30days
2.       A871 Ọkwa 60 Extra Service: Ngwọta (mgbawa ọkụ, aja aja, eserese na galvanized), akụkụ ịkpụ, ọrụ nlele, nyocha nke ndị ọzọ, nyocha UT na nha nha.
3.       Ọ bụrụ na ị nwere ihe ọ bụla chọrọ na efere ígwè maka A871 Ọkwa 60, ma ọ bụ efere ọhụrụ ma ọ bụ ndepụta ngwaahịa, biko nweere onwe gị ịkpọtụrụ anyị site na email nke ịkpọ oku.
4.       Ọ bụrụ na ị nwere ajụjụ ọ bụla na efere ma ọ bụ ọrụ anyị. Biko kpọtụrụ ngalaba ọrụ anyị ka ị nweta nzaghachi ngwa ngwa.

Mpempe igwe dị ala dị elu (HSLA):

Ọkwa	C%	Mn %	P%	S%	Si%	Cu %
A871 Gr65	≤0.20	0.75-1.35	≤0.04	≤0.05	0.15-0.50	0.2-0.40
	C%	N %	V%	Ee %	B%	-
	0.4-0.70	-	0.01-0.10	≤0.50	-	-

Ngwongwo igwe nke a871 grade 65 plate:

Ọkwa	Ọkpụrụkpụ (mm)	Obere(Mpa)	Tensile (MPa)	Mgbatị (%)	Min mmetụta ike
A871 Gr65	≤12mm	Nkeji 450Mpa	Min550Mpa	17	-18℃	20J
	12mm	Nkeji 450Mpa	Nkeji 550Mpa	17	-29℃	20J