| Jenis pembayaran: | D/P,T/T,L/C |
| Inkoterm: | FOB,CFR,CIF,EXW |
| Transportasi: | Ocean,Land,Express |
| Pelabuhan: | Tianjin,Qingdao,Shanghai |
Model No: AISI 4340
Standar: AiSi, ASTM, bs, GB, KERIUHAN, JIS
Tempat Asal: Cina
Proses Produksi: Ditempa, Hot Rolled
Aplikasi: Batang Baja Struktural, Die Steel Bar, Alat Besi Baja
Apakah Paduan: Apakah Paduan
Baja Khusus: Baja cetakan
Jenis: Batang Baja Paduan, Batang Baja Karbon
Toleransi: ± 1%
Layanan Pengolahan: Pembengkokan, Dekorasi, Pemotongan, Meninju
| Menjual unit | : | Ton |
| Tipe paket | : | Kemasan Marinir Standar, atau sebagaimana disyaratkan oleh Pelanggan |
| Contoh pada gamba | : |
|
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1: 4340 Pendahuluan Baja
Baja AISI 4340 adalah karbon sedang, baja paduan rendah yang dikenal karena ketangguhan dan kekuatannya di bagian yang relatif besar. AISI 4340 juga merupakan salah satu jenis baja kromium molibdenum nikel. 4340 baja paduan umumnya disuplai mengeras dan marah dalam kisaran tarik 930 - 1080 MPa. Baja 4340 yang diperkeras dan diperkeras dapat dikeraskan lebih lanjut dengan pengerasan nyala api atau induksi dan oleh nitriding. Baja 4340 memiliki ketahanan guncangan dan dampak yang baik serta ketahanan aus dan abrasi dalam kondisi yang keras. Properti baja AISI 4340 menawarkan keuletan yang baik dalam kondisi anil, memungkinkannya ditekuk atau dibentuk. Pengelasan fusi dan resistensi juga dimungkinkan dengan baja paduan 4340 kami. Bahan ASTM 4340 sering digunakan di mana baja paduan lainnya tidak memiliki hardenability untuk memberikan kekuatan yang diperlukan. Untuk bagian yang sangat stres, ini adalah pilihan yang sangat baik. Baja paduan AISI 4340 juga dapat dikerjakan dengan semua metode adat.
2: 4340 baja yang setara
| Country | Japan | Germany | Britain | USA |
| Standard | JIS G4103 | EN10250 | BS970 | ASTM A29 |
| Grade | SNCM439 | 36CrNiMo4/1.6511 | EN24/817M40 | 4340 |
| Grade | C | Si | Mn | P | S | Cr | Mo | Ni |
| 4340 | 0.38-0.43 | 0.15-0.35 | 0.6-0.8 | 0.035 | 0.04 | 0.7-09 | 0.2-0.3 | 1.65-2.0 |
| 36CrNiMo4 | 0.32-0.4 | 0.4 | 0.5-0.8 | 0.035 | 0.035 | 0.9-1.2 | 0.15-0.3 | / |
| EN24 | 0.36-0.44 | 0.1-0.4 | 0.45-0.7 | 0.035 | 0.04 | 1.0-1.4 | 0.2-0.35 | 1.3-1.7 |
| SNCM439 | 0.36-0.43 | 0.15-0.35 | 0.6-0.9 | 0.03 | 0.03 | 0.6-1.0 | 0.15-0.3 | 1.6-2.0 |
5: 4340 Tinjauan Baja
| Size | Round | Dia 6-1200mm |
| Plate/Flat/Block |
Thickness 6mm-500mm |
|
|
Width 20mm-1000mm |
||
| Heat treatment | Normalized ; Annealed ; Quenched ; Tempered | |
| Surface condition | Black; Peeled; Polished; Machined; Grinded; Turned; Milled | |
| Delivery condition | Forged; Hot rolled; Cold drawn | |
| Test | Tensile strength, Yield strength, elongation, area of reduction, impact value, hardness, grain size, ultrasonic test, US inspection, magnetic particle testing, etc. | |
| Payment terms | T/T;L/C;/Money gram/ Paypal | |
| Trade terms | FOB; CIF; C&F; etc.. | |
| Delivery time | 30-45 days | |
| Application | 4340 alloy steels are used for aircraft landing gear, automotive, oil and gas drilling, warm and cold forming, machine building, transfer systems like power transmission gears and shafts, general engineering industries and structural use applicatios such as heavy duty shafts, gears, axles, spindles, couplings, pins, chucks, molds and so on. | |
| Steel series | Representative steel type |
| Carbon Steel series | AISI 1020, 1045, A36, S355JR, S355JO |
| Petroleum machinery series | AISI 4150, AISI 4140, AISI 4130 |
| 30CrMo, 4145H | |
| Tool mold series | 1.2714, 5CrMnMo, 5CrNiMoV |
| 1.2738, 1.2311, 1.2312, 1.2714, H13 | |
| Bearing series | 52100, GCr15, SUJ2 |
| Marine series | 4140, 42CrMo, SCM440 |
| 709M40 | |
| Car series | SAE8620, 20CrNiMo |
| SNCM220 | |
| Heavy-duty transmission series | 40CrNiMo, SNCM439 |
| SAE4340, EN24 | |
| Mining machinery series | 655M13, 826M40 |
| 25CrMo | |
| Wind power gear series | 18CrNiMo7-6, 17CrNiMo6, 1.6582, 1.6587, SAE8620 |
| Wind power spindle series | 34CrNiMo6, 817M40 |
| Nitriding series | 20MnCr5, 38CrMoAl |
| 31CrMoV9 | |
| Pressure vessel series | 15CrMo, 13CrMo4-4 |
| Metallurgical roll series | 21CrMoV511, W1.7225 |
| EN19, 709M40 |
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