AISI 8620 Hlau

Alloy Steel 8620, kuj muag raws li AISI 8620, yog ib tug hardenable, carburizing, tsawg alloy steel. Cov alloy no muab cov neeg siv zoo tshaj qhov yooj yim, hnav tsis kam, nrog rau kev yooj yim ntawm weldability los ntawm cov qauv siv.

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Khoom taw qhia Cov ntaub ntawv technical

Khoom taw qhia

AISI 8620 Hlauyog ib qho tsis tshua muaj hlau npib tsib xee, chromium, molybdenum cov ntaub ntawv hardening steel, feem ntau muab nyob rau hauv raws li dov mob nrog lub siab tshaj plaws hardness max HB 255. Nws yog feem ntau muab nyob rau hauv 8620 round bar.

Nws yog hloov tau thaum lub sij hawm hardening kev kho mob, yog li enabling kev txhim kho cov ntaub ntawv / core zog. Pre hardened thiab tempered (uncarburized) 8620 tuaj yeem ua rau saum npoo tawv ntxiv los ntawm nitriding. Txawm li cas los xij, nws yuav tsis teb cov nplaim taws lossis induction hardening vim nws cov ntsiab lus carbon tsawg.

Steel 8620 yog haum rau cov ntawv thov uas xav tau kev sib xyaw ua ke ntawm cov tawv thiab hnav tsis kam.

Peb muab AISI 8620 round bar nyob rau hauv kub dov / Q + T / normalized mob. Muaj txoj kab uas hla ntawm 20mm mus rau 300mm rau kev xa khoom sai.

1. AISI 8620 Steel Supply Range

8620 Round Bar: txoj kab uas hla 8mm - 3000mm
8620 Steel Phaj: thickness 10mm - 1500mm x dav 200mm - 3000mm
8620 Square Bar: 20mm - 500mm
8620 raj kuj tseem muaj rau koj qhov kev thov kom ntxaws.
Nto tiav: Dub, Rough Machined, Tig los yog raws li qhov yuav tsum tau ua.

Cov ntaub ntawv technical

2. SAE 8620 Steel Specification thiab cov qauv tsim nyog

Lub teb chaws	Teb chaws USA	DIN	BS	BS	Nyiv
Txuj	ASTM A29	TIAB SA 1654	TS EN 10084	SIB 970	JIS G4103
Qib	8620	1.6523/ 21 NiCrMo2	1.6523/ 20 NiCrMo2-2	805m2 0	SIB 220

3. ASTM 8620 Steels & Equilvalents Chemical Composition

Txuj	Qib	C	Mn	P	S	Si	Ni	Cr	Mo
ASTM A29	8620	0.18-0.23	0.7-0.9	0.035	0.040	0.15-0.35	0.4-0.7	0.4-0.6	0.15-0.25
TIAB SA 1654	1.6523/ 21 NiCrMo2	0.17-0.23	0.65-0.95	0.035	0.035	≦0.40	0.4-0.7	0.4-0.7	0.15-0.25
TS EN 10084	1.6523/ 20 NiCrMo2-2	0.17-0.23	0.65-0.95	0.025	0.035	≦0.40	0.4-0.7	0.35-0.70	0.15-0.25
JIS G4103	SIB 220	0.17-0.23	0.6-0.9	0.030	0.030	0.15-0.35	0.4-0.7	0.4-0.65	0.15-0.3
SIB 970	805m2 0	0.17-0.23	0.6-0.95	0.040	0.050	0.1-0.4	0.35-0.75	0.35-0.65	0.15-0.25

4. AISI 8620 Steel Mechanical Properties

8620 Lub cev muaj zog:

Qhov ceev (lb / cu. in.) 0.283
Specification Gravity 7.8
Cov cua kub tshwj xeeb (Btu/lb/Deg F – [32-212 Deg F]) 0.1
Melting Point (Deg F) 2600
Thermal conductivity 26
Mean Coeff Thermal Expansion 6.6
Modulus ntawm Elasticity Tension 31

8620 Steel Mechanical Properties

Cov khoom	Metric	Imperial
Tensile zog	530 MPa ua	7 6900 psi
Yield zog	385 MPa ua	55 800 psi
Elastic modulus	190-210 GPa	27557-30458 dr hab
Bulk modulus (tseem ceeb rau steel)	140 GPa	20 300 TZS
Shear modulus (zoo rau steel)	80 gpa ua	11 600 ksg
Poisson tus piv	0.27-0.30	0.27-0.30
Izod Impact	115 J	84,8ft wb
Hardness, Brinell	149	149
Hardness, Knoop (hloov los ntawm Brinell hardness)	169	169
Hardness, Rockwell B (hloov los ntawm Brinell hardness)	80	80
Hardness, Vickers (hloov los ntawm Brinell hardness)	155	155
Machinability (kub dov thiab txias kos, raws li 100 machinability rau AISI 1212 steel)	65	65

5. Forging ntawm Cov Khoom Siv 8620 Hlau

AISI 8620 alloy steel yog forged ntawm qhov pib kub ntawm ib ncig ntawm 2250ºF (1230ºC) mus txog kwv yees li 1700ºF (925ºC.) ua ntej kev kho cua sov los yog carburizing. Cov hlau yog cua txias tom qab forging.

6. ASTM 8620 Steel Kev kho cua sov

Annealing

AISI 8620 steel tej zaum yuav muab ib tug tag nrho anneal los ntawm tshav kub mus rau 820 ℃ - 850 ℃, thiab tuav kom txog thaum kub yog uniform thoob plaws hauv seem thiab txias nyob rau hauv cub tawg los yog cua txias.

Tempering

Tempering ntawm tshav kub kho thiab dej quenched qhov chaw ntawm 8620 steels (tsis carburized) yog ua ntawm 400 F mus rau 1300 F los txhim kho rooj plaub toughness nrog tsawg heev rau nws hardness. Qhov no tseem yuav txo tau qhov sib tsoo tawg.

Hardening

AISI steel 8620 yuav austenitized nyob ib ncig ntawm 840 ° C - 870 ° C, thiab roj los yog dej quenched nyob ntawm seb seem loj thiab intricacy. Txias hauv Cua lossis Roj xav tau.

normalizing

1675ºF (910ºC) thiab cua txias. Qhov no yog lwm txoj hauv kev txhim kho machinability hauv 8620 cov khoom; normalizing kuj tseem siv tau ua ntej cov ntaub ntawv hardening.

7. Machinability ntawm SAE 8620 Hlau

Lub 8620 alloy hlau tau yooj yim machined tom qab kev kho cua sov thiab / los yog carburizing, yuav tsum yog tsawg kawg yog li ntawd kom tsis txhob cuam tshuam cov hardened rooj. Machining tej zaum yuav ua tau los ntawm cov lus pom zoo ua ntej kev kho cua sov - tom qab carburizing machining feem ntau txwv rau kev sib tsoo.

8. Vuam ntawm 8620 cov ntaub ntawv

Lub alloy 8620 yuav raug welded raws li dov mob los ntawm cov pa txoj kev, feem ntau gas los yog arc vuam. Preheating ntawm 400 F yog qhov muaj txiaj ntsig thiab cov cua sov tom qab tau pom zoo - sab laj cov txheej txheem vuam pom zoo rau txoj kev siv. Txawm li cas los xij, welding nyob rau hauv rooj plaub hardened los yog hardened mob tsis pom zoo

9. Daim ntawv thov ntawm ASTM 8620 Steel

AISI 8620 steel khoom siv dav siv los ntawm tag nrho cov kev lag luam sectors rau lub teeb rau nruab nrab kev nyuab siab Cheebtsam thiab shafts yuav tsum tau siab nto hnav kuj nrog tsim nyog lub zog thiab tej yam kev mob.

Cov ntawv thov raug yog: Arbors, Bearings, Bushings, Cam Shafts, Differential Pinions, Guide Pins, King Pins, Pistons Pins, Gears, Splined Shafts, Ratchets, Tes Tsho thiab lwm yam kev siv uas yuav pab tau kom muaj cov hlau uas tuaj yeem ua tau yooj yim machined thiab carburized los tswj cov ntaub ntawv qhov tob.

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