National service hotline135 2865 7111
151 1833 5099
151 1833 5099
Dongguan Denuo metal steel Co., LTD
Tel: 0769-83067750
Tang Zong 13528657111 (wechat same number)
Wang Lin 15118335099 (wechat same number)
Q Q: 806124705
Add: No.454 Taian Road, Chang 'an Town, Dongguan City, Guangdong Province
17-4PH stainless steel |
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| 2021-01-26 15:54:54 | ||
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| Detailed description | ||
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17-4PH is martensitic precipitation hardening stainless steel.17-4PH properties are characterized by easy to adjust the strength level, which can be adjusted by changing the heat treatment process. Martensitic phase transformation and aging treatment to form precipitation hardening phase are the main strengthening methods,17-4PH attenuation performance, corrosion fatigue and water drop resistance is strong. Application field · Offshore platforms, helicopter decks, other platforms · Food industry · Pulp and paper industry · Aerospace (turbine blades) · Mechanical parts · Nuclear waste barrels 17-4PH alloy 17-4PH is precipitated, hardened, martensitic stainless steel. 17-4PH alloy is a precipitated, hardened, martensitic stainless steel composed of copper, niobium/columbium. This grade features high strength, hardness (up to 300º C/572º F) and resistance to corrosion. After heat treatment, the mechanical properties of the product are more perfect, and the compressive strength of up to 1100-1300 mpa (160-190 ksi) can be achieved. This grade cannot be used above 300º C (572º F) or at very low temperatures, it has good corrosion resistance to the atmosphere and dilute acids or salts, its corrosion resistance is the same as 304 and 430. Chemical composition "China brand 0Cr17Ni4Cu4Nb 05Cr17Ni4Cu4Nb C: 0.07 or less Si: ≤1.00 Mn: 1.00 or less P: 0.035 or less S: 0.030 or less Ni: 3.00 to 5.00 Cr: 15.0 to 17.5 Mo:- Cu: 3.00 to 5.00 Nb: 0.15 to 0.45 Other :- United States ASTMS17400, ASTM A564 630, UNS630 Chemical composition C: 0.07 or less Si: 1.00 or less Mn: 1.00 or less P: 0.040 or less S: 0.030 or less Ni: 3.00 to 5.00 Cr: 15.0 to 17.5 Mo:- Cu: 3.00 to 5.00 Nb: 0.15 to 0.45 Other :- Japan SUS630 Chemical composition C: 0.07 or less Si: 1.00 or less Mn: 1.00 or less P: 0.040 or less S: 0.030 or less Ni: 3.00 to 5.00 Cr: 15.0 to 17.5 Mo:- Cu: 3.00 to 5.00 Nb + Tao: 0.15 to 0.45 Other :- European X5CrNiCuNb16-4 Chemical composition C: 0.07 or less Si: 1.00 or less Mn: 1.00 or less P: 0.040 or less S: 0.030 or less Ni: 3.00 to 5.00 Cr: 15.0 to 17.0 Mo:- Cu: 3.00 to 5.00 Nb + Tao: 0.15 to 0.45 Other :- Mechanical property Tensile strength σb (MPa) : aging at 480℃,≥1310; Aging at 550℃,≥1060; Aging at 580℃,≥1000; Aging at 620℃ ≥930 Conditional yield strength σ0.2 (MPa) : aging at 480℃,≥1180; Aging at 550℃,≥1000; Aging at 580℃,≥865; Aging at 620℃ ≥725 Elongation δ5 (%) : aging at 480℃,≥10; Aging at 550℃,≥12; Aging at 580℃,≥13; Aging at 620℃,≥16 Section shrinkage ratio ψ (%) : aging at 480℃,≥40; Aging at 550℃,≥45; Aging at 580℃,≥45; Aging at 620℃,≥50 Hardness: solution ≤363HB and ≤38HRC; Aging at 480℃,≥375HB and ≥40HRC; Aging at 550℃,≥331HB and ≥35HRC; Aging at 580℃,≥302HB and ≥31HRC; Aging at 620℃,≥277HB and ≥28HRC Density: 7.80g/cm3 Heat treatment specification Heat treatment specification: 1) Solution 1020 ~ 1060℃ fast cooling 2) Aging at 480℃, after solution treatment, air cooling at 470 ~ 490℃ 3) Aging at 550℃, after solution treatment, air cooling at 540 ~ 560℃ 4) Aging at 580℃, after solution treatment,570 ~ 590℃ air cooling 5) Aging at 620℃, after solution treatment, air cooling at 610 ~ 630℃. Metallographic structure: The structure is characterized by precipitation hardening type. |
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