ASTM A490 A490M Heavy Hex Structural Bolt

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ASTM A490 A490M Heavy Hex Structural Bolts Ezubere maka iji ya na njikọ nhazi. A na-ekpuchi njikọ ndị a n'okpuru ihe achọrọ nke nkọwapụta maka njikọta Structural Iji ASTM A490 Bolts, nke Council Research on Structural Connections kwadoro, nke American Institute of Steel Construction na Ụlọ Ọrụ Fastener Industrial kwadoro. Akụkụ: ASME B18.2.6, ASME/ANSI B18.2.3.7M Inch Size: 1/2″-1.1/2″ dị iche iche Metric Size: M12-...

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ASTM A490 A490M Heavy Hex Structural Bolts

Ezubere bolts ndị ahụ maka iji na njikọ nhazi. A na-ekpuchi njikọ ndị a n'okpuru ihe achọrọ nke nkọwapụta maka njikọta Structural Iji ASTM A490 Bolts, nke Council Research on Structural Connections kwadoro, nke American Institute of Steel Construction na Ụlọ Ọrụ Fastener Industrial kwadoro.

Akụkụ: ASME B18.2.6, ASME/ANSI B18.2.3.7M

Nha inch: 1/2″-1.1/2″ nwere ogologo dị iche iche

nha metric: M12-M36 nwere ogologo dị iche iche

Ọkwa: ASTM A490 A490M Ụdị-1

Mechaa: Black Oxide, Zinc Plating, Dacromet, na ndị ọzọ

Mbukota: nnukwu ihe dị ka kilogram 25 katọn ọ bụla, katọn 36 nke pallet ọ bụla

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ASTM A490

Tupu ewepu ya na 2016, nkọwapụta ASTM A490 kpuchiri agbanyụ na ọkụ, alloy steel, bolts hex siri ike sitere na 1/2 ″ dayameta site na dayameta 1-1/2 ″ nwere obere 150 ksi tensile. Ezubere bolts ndị a maka iji na njikọ nhazi ya mere ha nwere ogologo eri dị mkpụmkpụ karịa ọkọlọtọ hex bolts. Rụtụ aka na ibe Structural Bolts nke saịtị anyị maka ogologo eri na akụkụ ndị ọzọ metụtara ya. A490 bolts yiri ngwa na nha na A325 hex structural bolts mana a na-eme ya site na alloy steel kama ọkara carbon steel, na-ebute ngwa ngwa ike dị elu. Nkọwapụta A490 bụ maka naanị bolts nhazi hex dị arọ. Maka bolts nwere ogologo eri dị iche iche karịa ka akọwapụtara maka bolts arụrụ arụ mana nwere ihe eji arụ ọrụ yiri ya, hụ nkọwapụta A354 ọkwa BD. Agaghị ekpuchi bolts ASTM A490 site na galvanizing na-ekpo ọkụ, ntinye igwe, ma ọ bụ iji zinc mee ihe n'ihi ihe egwu nwere ike ịnweta hydrogen embrittlement. ASTM akwadoro mkpuchi A490 bolts na Zinc/Aluminum Corrosion Coatings maka ASTM F1136 Grade 3, nke a na-akpọ Geomet na azụmaahịa. Nnwale agbakwunyere n'ụdị Nyocha Magnetik Particle for Longitudinal Discontinuities na Transverse Cracks bụ ihe achọrọ maka nkọwapụta A490.

Ụdị A490

Ụdị 1	Ọkara carbon na alloy ígwè.
Ụdị 2	E wepụrụ na 2002.
Ụdị 3	Igwe ihu igwe.
M	Metric A490.

Ụdị njikọ A490

SC	Wepụ njikọ dị egwu.
N	Ụdị njikọ na eri gụnyere n'ime ụgbọ elu shear.
X	Ụdị njikọ na eri ewepụrụ na ụgbọ elu shiee.

A490 Mechanical Njirimara

Nha	Tensile, ksi	Mpụta, ksi	Elong. %, nkeji	RA%, min
1/2 - 1-1/2	150-173	130	14	40

Njirimara Chemical A490

Ụdị 1 Bolts
Ihe	Nha 1/2 ruo 1-3/8	Nha 1-1/2
Carbon, max	0.30 - 0.48%	0.35-0.53%
Phosphorus, max	0.040%	0.040%
Sulfur, max	0.040%	0.040%
Ngwakọta alloying	*	*
A ga-ewere ígwè, dị ka American Iron and Steel Institute kọwara dị ka ihe alloy mgbe oke kachasị enyere maka ọdịnaya nke ihe ndị na-emepụta ihe karịrị otu n'ime oke ndị a: Manganese, 1.65%, silicon, 0.60%, ọla kọpa. , 0.60%, ma ọ bụ nke a kapịrị ọnụ ma ọ bụ ọnụ ọgụgụ kacha nta nke ihe ọ bụla n'ime ihe ndị a ka akọwapụtara ma ọ bụ chọrọ n'ime oke nke ubi a ma ama nke nchara ígwè: aluminum, chromium ruo 3.99%, cobalt, columbium, molybdenum, nickel, titanium, tungsten, vanadium, zirconium ma ọ bụ ihe ọ bụla ọzọ alloying ọcha agbakwunyere iji nweta a chọrọ alloying mmetụta.

Ụdị 3 Bolts
Ihe	Nha 1/2 ruo 3/4	Nha n'elu 3/4
Carbon	0.20 - 0.53%	0.30-0.53%
Manganese, min	0.40%	0.40%
Phosphorus, max	0.035%	0.035%
Sulfur, max	0.040%	0.040%
Ọla kọpa	0.20-0.60%	0.20-0.60%
Chromium, min	0.45%	0.45%
Nickel, min	0.20%	0.20%
or
Molybdenum, min	0.15%	0.15%

Ngwaike A490 akwadoro

Akụ		Ndị na-asa akwa
Ụdị 1	Ụdị 3	Ụdị 1	Ụdị 3
A563DH	A563DH3	F436-1	F436-3
Mara: Akụ na-adaba na A194 Grade 2H bụ ihe kwesịrị ekwesị maka iji ya na A490 hex bolts arụ ọrụ. Soro njikọ maka ASTM A563 Nut Compatibility Chart.