Stainless Steel Bolts: Hex Bolts le Material Grades

2026-08-05

1. Selelekela

Liboutu tsa tšepe tse sa hloekang li kopanya ho hanyetsa kutu le matla a ts'ebetso, li etsa hore e be tsa bohlokoa ho pholletsa le kaho, leoatleng, ho lokisa lijo le liindasteri tsa bongaka. Ho fapana le li-fasteners tsa carbon steel tse hlokang lirafshoa tse sireletsang, tšepe e sa hloekang e fumana ho hanyetsa ha eona ho tsoa leleng le ipholisang la chromium oxide. Tataiso ena e akaretsa lintlha tse peli tsa bohlokoa ka ho fetisisa: moralo oa hex bolt le khetho ea boemo ba tšepe e sa hloekang.

2. Hex Bolts

Li-bolts tsa Hex li na le hlooho e mahlakoreng a tšeletseng e nolofalletsang phetisetso e sebetsang ea torque ka li-wrenches kapa li-sockets tse tloaelehileng. Moqapi o na le hlooho e hexagonal, shank e sa baloang, karolo e khoele, le ntlha e chamfered. Melemo ea bohlokoa e kenyelletsa matla a torque e phahameng, phihlello ea bokahohleng, katleho ea tlhahiso, ts'ebeliso e ncha, le ho latela litekanyetso tsa machabeng (ISO 4014, DIN 933, ASTM A325).

Letlapa la 1. Mefuta e Tloaelehileng ea Bolt ea Hex (Stainless Steel)

Boholo ba Lebitso	Khoele Pitch (TPI)	Bophara ba Hlooho (mm)	Tensile Strength (MPa)
1/4 - 20	20	11.1	520
3/8 - 16	16	14.3	520
1/2 - 13	13	19.1	520
3/4 - 10	10	28.6	520

3. Stainless Steel Grades

Li-fasteners tsa tšepe tse sa hloekang li arotsoe ka malapa a mane: austenitic (304, 316 — non-magnetic, high corrosion resistance), ferritic (430 — magnetic, economical), martensitic (410 — hardenable, moderate corrosion), le precipitation-hardening (17-4PH — matla a phahameng). Tlas'a ISO 3506, limaraka li sebelisa nomoro ea nomoro moo A = austenitic, C = martensitic, 'me palo e bolela sehlopha sa matla a tensile (50/70/80).

Letlapa la 2. Mefuta e Tloaelehileng ea Stainless Steel bakeng sa Bolts

Kereiti	Sehlopha sa ISO	Tensile (MPa)	Corrosion Hanyetsa.	Lintlha Tse Ka sehloohong	Tšebeliso e Tloaelehileng
304	A2-70	700	E ntle	18% Cr, 8% Ni	Sepheo se akaretsang, lijo
316	A4-70	700	E kgabane	16% Cr, 10% Ni, 2% Mo	Marine, lik'hemik'hale, tsa bongaka
410	C3-80	550	E itekanetseng	12% Kr	Cutlery, li-valve
17-4PH	A4-80	800	E ntle	16% Cr, 4% Ni, 4% Cu	Aerospace, matla a holimo

3.1 Khetho ea Kereiti ka Tikoloho

Lethathamo la 3. Mephato e khothalelitsoeng ka Tikoloho ea Tšebeletso

Tikoloho	Kereiti e khothalelitsoeng	Lebaka
Ka tlung/ E omileng	304 (A2)	E lekane ka theko e tlase
Kantle/ Lebopong	316 (A4)	Mo o hanela tlhaselo ea chloride
Semela sa Lik'hemik'hale	316L / 904L	Ho hanyetsa acid e phahameng
Litlhoko tsa Matla a Phahameng	17-4PH (A4-80)	Pula-thata

Stainless Steel Bolts Hex Bolts le Material Grades

4. Lintlha Tse ka Sehloohong

Galling: Limaraka tsa Austenitic (304, 316) li tloaetse ho ts'oara likhoele nakong ea ho tiisa. Sebelisa li-anti-seise compounds kapa li-pairings tsa maemo a sa tšoaneng (A2 bolt e nang le A4 nut) ho fokotsa.

Passivation: Kalafo ea Acid (ASTM A967) e tlosa tšepe ea mahala mme e ntlafatsa lera la oxide, e ntlafatsa ho hanyetsa kutu ka mor'a tlhahiso.

Magnetism: Limaraka tsa Austenitic ha li na makenete ha li koaleha empa li ka fetoha makenete hanyane kamora ho sebetsa ha serame. Limaraka tsa Ferritic le martensitic ke tsa tlhaho tsa makenete.

5. Qetello

Liboutu tsa tšepe tse se nang tšepe tsa hex li kopanya moralo o sebetsang oa jiometri le ho feto-fetoha ha metallurgical. Ho tloha ho Kreiti ea 304 ea moruo bakeng sa tšebeliso e akaretsang ho isa ho matla a phahameng a 17-4PH bakeng sa likopo tse boima, ho nyallana kereiti e nepahetseng ho tikoloho ea litšebeletso ho netefatsa ts'ebetso e nepahetseng le bophelo bo bolelele.

Ha ke na. E latelang.

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