Kedu ihe bụ AISI 5140 steel?
ASTM grade 5140 bụ otu structural alloy steel ọkwa na ọkọlọtọ ASTM A29 maka ngwa izugbe. A na-eji efere ígwè 5140 n'ọtụtụ ebe na akụkụ dị ala na nke nwere nrụgide maka ụgbọ ala, injinia na igwe ebe siri ike, eyi akwa na-eguzogide dị mkpa. Gnee bụ ọkachamara 5140 efere & gburugburu mmanya na-ebubata ma anyị na-edobe nnukwu nha maka 5140 efere na ngwaahịa maka mbupu ozugbo. Kpọtụrụ anyị maka arịrịọ AISI 5140 ọ bụla yana ọnụahịa igwe ọkwa 5140 kacha mma.
Uru asọmpi maka AISI 5140 ihe igwe efere na Otai:
- Dị na ngwaahịa maka mbupu ozugbo
- Ike dị elu,
- Nnukwu ike
- Obi ike dị mma
- Nnukwu iguzogide ihe ọkụkụ.
- Ọnụ ahịa asọmpi
1. Ọnụnọ nke AISI/ASTM 5140
Ogwe okirikiri: dayameta 20mm - 300mm
Efere efere na ihe mgbochi ígwè: ọkpụrụkpụ 10-200mm x obosara 300-2000mm
- 10-80mm ọkpụrụkpụ 5140 efere dị mgbe niile na ngwaahịa,
- 90-200mm ọkpụrụkpụ efere ga-ọhụrụ mmepụta na 15-30 ụbọchị ụzọ oge.
Ngwucha elu: elu ojii, elu igwe igwe ma ọ bụ elu a na-egbu maramara dị ka achọrọ.
2. Dị mkpa AISI 5140 Nkọwapụta na akara akara igwe dakọtara
| Obodo |
USA |
German |
Japan |
| Ọkọlọtọ |
ASTM/AISI A29 |
EN 10083-3 |
JIS G4053 |
| akara ule |
5140 |
41Cr4 |
SCr440 |
3. ASTM 5140 Ihe mejupụtara kemịkalụ na ihe nhata
| Ọkọlọtọ |
Ọkwa / Nọmba igwe |
C |
Mn |
P |
S |
Si |
Cr |
Ni |
| ASTM A29 |
5140 |
0.38-0.43 |
0.70-0.90 |
≤0.035 |
≤0.040 |
0.15-0.35 |
0.70-0.90 |
- |
| EN 10083-3 |
41Cr4 / 1.7035 |
0.38-0.45 |
0.60-0.90 |
≤0.025 |
≤0.035 |
≤0.40 |
0.90-1.20 |
- |
| JIS G4053 |
SCr440 |
0.38-0.43 |
0.60-0.90 |
≤0.030 |
≤0.030 |
0.15-0.35 |
0.90-1.20 |
≤0.25 |
4. AISI 5140 Steel Properties
| Ngwongwo |
Uru na metric unit |
Uru dị na unit US |
| Njupụta |
7.872 * 10³ |
n'arọ/m³ |
491.4 |
lb/ft³ |
| Modul nke elasticity |
205 |
GPA |
29700 |
ksi |
| Mgbasa ọkụ (20ºC) |
12.6*10-6 |
ºCˉ¹ |
7.00*10-6 |
na / (na * ºF) |
| Kpọmkwem ike okpomọkụ |
452 |
J/ (kg*K) |
0.108 |
BTU/(lb*ºF) |
| Thermal conductivity |
44.7 |
W/ (m*K) |
310 |
BTU * n'ime / (hr*ft²*ºF) |
| Eletriki resistivity |
2.28*10-7 |
Ohm*m |
2.28*10-5 |
Ohm*cm |
| Ike tensile (annealed) |
572 |
MPa |
83000 |
psi |
| Ike mpụta (annealed) |
293 |
MPa |
42500 |
psi |
| Elongation (annealed) |
29 |
% |
29 |
% |
| Isi ike (annealed) |
85 |
RB |
85 |
RB |
| Ike tensile (nke a na-ahazi) |
793 |
MPa |
115000 |
psi |
| Ike mpụta (nke a na-ahazi) |
472 |
MPa |
68500 |
psi |
| elongation (normalized) |
23 |
% |
23 |
% |
| Isi ike (normalized) |
98 |
RB |
98 |
RB |
5. Nrụpụta nke 5140 Alloy Steel
Na-ekpo ọkụ akpụ okpomọkụ: 1050-850 ℃.
6. ASTM 5140 Steel Heat Treat
Kpoo ọkụ ruo 680-720 ℃, jiri nwayọ nwayọ. Nke a ga-emepụta ike 5140 kachasị nke 241HB ( hardness Brinell).
- Normalizing nke ọkwa ígwè 5140
Okpomọkụ: 840-880 ℃.
- Hardening nke 5140 ekpuworo ígwè
Kposie ike site na okpomọkụ nke 820-850, 830-860 ℃ na-esote mmiri ma ọ bụ mmanụ quenching.
- Tempering nke SAE 5140 ihe
Ọnọdụ okpomọkụ: 540-680 ℃.
7. Ngwa nke AISI ọkwa 5140
Enwere ike iji ígwè AISI 5140 mee ihe maka akụkụ dị ala na nke na-arụ ọrụ nke ọma maka ụgbọ ala, injinia na igwe ebe siri ike, eyi na-eguzogide elu dị mkpa. Isi ike dị ka elu siri ike ihe dịka 54 HRC. Ngwongwo SAE 5140 nwekwara ike ịbụ maka ụlọ ọrụ injinia mmiri, ụlọ ọrụ nhazi kemịkalụ, mmiri ọkụ & arịa nrụgide, osisi ike nuklia wdg.
Ọ bụrụ na ị nwere ajụjụ gbasara nkọwa 5140, ma ọ bụ ajụjụ ọ bụla gbasara 5140 vs 4130, 5140 vs 4340 wdg, biko kpọtụrụ anyị maka nkwado teknụzụ oge ọ bụla.
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
.jpg)
