17-4PH/UNS S17400 igwe anaghị agba nchara
Ngwaahịa dị
Ọkpụkpọ enweghị nkebi, Efere, Mkpanaka, Forgings, Fasteners, Pipe Fittings.
Ụkpụrụ mmepụta
Ngwaahịa | ASTM |
Ogwe, ibe na profaịlụ | A 564, A 484 |
Efere, Mpempe akwụkwọ na warara | A 693, A 480 |
Forgings | A 705, A 484 |
Ngwakọta kemịkalụ
% | Fe | Cr | Ni | P | S | Cu | Nb+Ta | Si | C |
Min | itule | 15.5 | 3.0 |
|
| 3.0 | 0.15 |
|
|
Oke | 175 | 5.0 | 0.04 | 0.03 | 5.0 | 0.45 | 1.00 | 0.07 |
Njirimara anụ ahụ
Njupụta | 7.75 g/cm3 |
Na-agbaze | 1404-1440 ℃ |
17-4PH Ihe Njirimara
17-4PH bụ chromium-nickel-ọla kọpa mmiri ozuzo siri ike martensitic igwe anaghị agba nchara.Nke a ọkwa nke igwe anaghị agba nchara nwere ihe ndị dị ka ike dị elu, ike ike na corrosion iguzogide.Mgbe ọgwụgwọ okpomọkụ gasịrị, ihe eji arụ ọrụ nke ngwaahịa ahụ zuru oke, na ike mkpakọ nwere ike iru 1100-1300MPa (160-190ksi).Enweghị ike iji ọkwa a na okpomọkụ dị elu karịa 300°C (572°F) ma ọ bụ dị ala.Ọ nwere ezigbo nguzogide corrosion na ikuku na itughari acid ma ọ bụ nnu.Nguzogide corrosion ya tụnyere 304. Magnetik.
17-4PH Mechanical Njirimara
1.Tensile ike σb (MPa): ịka nká na 480 ℃, ≥1310;ịka nká na 550 ℃, ≥1060;ịka nká na 580 ℃, ≥1000;ịka nká na 620 ℃, ≥930
2.Conditional ike mkpụrụ σ0.2 (MPa): ịka nká na 480 ℃, ≥1180;ịka nká na 550 ℃, ≥1000;ịka nká na 580 ℃, ≥865;ịka nká na 620 ℃, ≥725
3.Elongation δ5 (%): ịka nká na 480 ℃, ≥10;ịka nká na 550 ℃, ≥12;ịka nká na 580 ℃, ≥13;ịka nká na 620 ℃, ≥16
4.Area shrinkage ψ (%): ịka nká na 480 ℃, ≥40;ịka nká na 550 ℃, ≥45;ịka nká na 580 ℃, ≥45;ịka nká na 620 ℃, ≥50
5.Hardness: ngwọta siri ike, ≤363HB na ≤38HRC;480℃ ịka nká, ≥375HB na ≥40HRC;550℃ ịka nká, ≥331HB na ≥35HRC;580℃ ịka nká, ≥302HB na ≥31HRC;620℃ ịka nká, ≥277HB na ≥28HRC
Mpaghara Ngwa Ngwa 17-4PH
1.Offshore nyiwe, helidecks, ndị ọzọ nyiwe
2. ụlọ ọrụ nri
3.Pulp na ụlọ ọrụ akwụkwọ
4.Aerospace (turbine agụba)
5.mechanical akụkụ
6.Ogwe ihe mkpofu nuklia