sybj

Biểu đồ thành phần hóa học thép không gỉ

2023-10-23 15:07

Thành phần hóa học nguyên tố của thép không gỉ chủ yếu bao gồm Ferrum (Fe) và Crom (Cr), các nguyên tố hợp kim khác trong thành phần hóa học còn bao gồm Carbon (C), Silicon (Si), Mangan (Mn), Phốt pho (P), Lưu huỳnh (S), Niken (Ni), Molypden (Mo), Titanium (Ti), Nitơ (N), Cuprum (Cu), v.v. Chỉ khi thành phần phần trăm Cr đạt đến một giá trị nhất định thì thép mới có khả năng chống ăn mòn. Do đó, kim loại thép không gỉ thường có hàm lượng Crom tối thiểu 10,5%.

Bảng sau liệt kê thành phần hóa học của hợp kim thép không gỉ, bao gồm austenit SS 304, 304L 316, 316L, 321, 303, 302, 301, 904L, 201, v.v., martensitic SS 440A, 440B, 440C, 420, v.v., ferrit SS 430, thép không gỉ song công 2205, 2507, 329, v.v.

Lưu ý: Tối đa “≤“, trừ khi phạm vi (Tối thiểu-Tối đa) hoặc tối thiểu ( ≥) được chỉ định.

Biểu đồ thành phần hóa học thép không gỉ, tỷ lệ phần trăm (%)
Thép không gỉC, ≤Mn, ≤P, ≤S, ≤Và, ≤CrTRONGMoN, ≤Các yếu tố khác, ≤
3040,082,000,0450,031,0018,0-20,08,0-11,0–––
304L0,032,000,0450,031,0018,0-20,08,0-12,0–––
3160,082,000,0450,0301,0016,0-18,010,0-14,02,00-3,00––
316L0,032,000,0450,0301,0016,0-18,010,0-14,02,00-3,00––
3210,082,000,0450,031,0017,0-19,09,0-12,0–0,10≥ Ti 5×(C+N), ≤ 0,70
2010,155,50-7,500,060,031,0016,0-18,03,5-5,5–0,25–
2020,157.50-10.000,060,031,0017,0-19,04.0-6.0–0,25–
2050,12-0,2514,0-15,50,060,031,0016,5-18,01,0-1,7–0,32-0,40–
3010,152,000,0450,031,0016,0-18,06,0-8,0–0,10–
301L0,032,000,0450,031,0016,0-18,06,0-8,0–0,20–
301LN0,032,000,0450,031,0016,0-18,06,0-8,0–0,07-0,20–
3020,152,000,0450,030,7517,0-19,08,0-10,0–0,10–
302B0,152,000,0450,032,00-3,0017,0-19,08,0-10,0–0,10–
3030,152,000,2≥0,151,0017,0-19,08,0-10,0–––
303Se0,152,000,20,061,0017,0-19,08,0-10,0––Với 0,15
304H0,04-0,102,000,0450,030,7518,0-20,08,0-10,5–––
304N0,082,000,0450,031,0018,0-20,08,0-11,0–0,10-0,16–
304LN0,032,000,0450,031,0018,0-20,08,0-11,0–0,10-0,16–
3050,122,000,0450,031,0017,0-19,011,0-13,0–––
3080,082,000,0450,031,0019.0-21.010,0-12,0–––
3090,22,000,0450,031,0022.0-24.012.0-15.0–––
309S0,082,000,0450,031,0022.0-24.012.0-15.0–––
309H0,04-0,102,000,0450,030,7522.0-24.012.0-15.0–––
309Cb0,082,000,0450,031,0022.0-24.012.0-16.0––≥ Cb 10 x C, 1,10
309HCb0,04-0,102,000,0450,030,7522.0-24.012.0-16.0––≥ Cb 10 x C, 1,10
3100,252,000,0450,031,524,0-26,019.0-22.0–––
310S0,082,000,0450,031,524,0-26,019.0-22.0–––
310H0,04-0,102,000,0450,030,7524,0-26,019.0-22.0–––
310Cb0,082,000,0450,031,524,0-26,019.0-22.0––≥ Cb 10 x C, 1,10
310 MoLN0,022,000,030,010,524,0-26,020,5-23,51,60-2,600,09-0,15–
3140,252,000,0450,031,50-3,0023,0-26,019.0-22.0–––
316H0,04-0,102,000,0450,030,7516,0-18,010,0-14,02,00-3,00––
316Ti0,082,000,0450,031,0016,0-18,010,0-14,02,00-3,000,1≥ Ti 5 × (C + N), ≤0,70
316Cb0,082,000,0450,031,0016,0-18,010,0-14,02,00-3,000,1≥ Cb 10 × C, 1,10
316N0,082,000,0450,031,0016,0-18,010,0-14,02,00-3,000,10-0,16–
316LN0,032,000,0450,031,0016,0-18,010,0-13,02,00-3,000,10-0,16–
3170,082,000,0450,031,0018,0-20,011,0-15,03.0-4.00,1–
317L0,032,000,0450,030,7518,0-20,011,0-15,03.0-4.00,1–
317LM0,032,000,0450,030,7518,0-20,013,5-17,54.0-5.00,2–
317LMN0,032,000,0450,030,7517,0-20,013,5-17,54.0-5.00,10-0,20–
317LN0,032,000,0450,030,7518,0-20,011,0-15,03.0-4.00,10-0,22–
3210,082,000,0450,031,0017,0-19,09,0-12,0–0,1≥ Ti 5 × (C + N), ≤ 0,70
321H0,04-0,102,000,0450,030,7517,0-19,09,0-12,0––≥ Ti 4 × (C + N), ≤ 0,70
3340,081,000,030,0151,0018,0-20,019.0-21.0––Al 0,15-0,60, Ti 0,15-0,60
3470,082,000,0450,031,0017,0-19,09,0-12,0––≥ Cb 10 × C, 1,00
347H0,04-0,102,000,0450,030,7517,0-19,09,0-13,0––≥ Cb 8 × C, 1,00
347LN0,005-0,0202,000,0450,031,0017,0-19,09,0-13,0–0,06-0,10Cb 0,20-0,50, 15 × C ≥
3480,082,000,0450,031,0017,0-19,09,0-12,0––Cb 10×C-1,10, Ta 0,10, Co 0,20
348H0,04-0,102,000,0450,030,7517,0-19,09,0-13,0––(Cb + Ta) 8×C ≥ , 1,00 ≤, Ta 0,10, Co 0,20
22050,032,000,030,021,0022,0-23,04,5-6,53,0-3,50,14-0,20–
23040,032,50,040,031,0021,5-24,53,0-5,50,05-0,600,05-0,60–
2550,041,50,040,031,0024,0-27,04,5-6,52,9-3,90,10-0,25Với 1,50-2,50
25070,031.20,0350,020,824,0-26,06,0-8,03.0-5.00,24-0,32Với .50,50
3290,081,000,040,030,7523,0-28,02,0-5,001,00-2,00––
4030,151,000,040,030,511,5-13,0––––
4050,081,000,040,031,0011,5-14,5.50,5––Al 0,10-0,30
4100,08-0,151,000,040,031,0011,5-13,5––––
410S0,081,000,040,031,0011,5-13,5.60,6–––
4140,151,000,040,031,0011,5-13,51,25-2,50–––
4160,151,250,06≥0,151,0012.0-14.0––––
416Se0,151,250,06≥0,061,0012.0-14.0–––Với 0,15
4200,15, ≥1,000,040,031,0012.0-14.0––––
420F0,30-0,401,250,06≥0,151,0012.0-14.0.50,5––Với 0,60
420FSe0,20-0,401,250,060,151,0012.0-14.0.50,5––Se 0,15; Với 0,60
4220,20-0,250,50-1,000,0250,0250,511,0-12,50,50-1,000,90-1,25–V (0,20-0,30), W (0,90-1,25)
4290,121,000,040,031,0014.0-16.0––––
4300,121,000,040,031,0016,0-18,0––––
430F0,121,250,06≥0,151,0016,0-18,0––––
430FSe0,121,250,060,061,0016,0-18,0–––Với 0,15
4390,031,000,040,031,0017,0-19,0.50,5–0,03≥ Ti [0,20+4(C+N)], ≤ 1,10; Lúc 0,15
4310,21,000,040,031,0015,0-17,01,25-2,50–––
4340,121,000,040,031,0016,0-18,0–0,75-1,25–
4360,121,000,040,031,0016,0-18,0–0,75-1,25–≥ Cb 5×C, ≤ 0,80
440A0,60-0,751,000,040,031,0016,0-18,0–.70,75––
440B0,75-0,951,000,040,031,0016,0-18,0–.70,75––
440C0,95-1,201,000,040,031,0016,0-18,0–.70,75––
440F0,95-1,201,250,060,151,0016,0-18,0.50,5––Với .60,60
440FSe0,95-1,201,250,060,061,0016,0-18,0.50,5––Se 0,15; Với .60,60
4420,21,000,040,041,0018,0-23,0.60,6––
4440,0251,000,040,031,0017,5-19,51,001,75-2,500,035Ti+Cb 0,20+4 × (C+N)-0,80
4460,21,50,040,031,0023,0-27,0.70,75–0,25–
8000,11,50,0450,0151,0019.0-23.030,0-35,0––Cu 0,75; ≥FeH 39,5; Al 0,15-0,60
800H0,05-0,101,50,0450,0151,0019.0-23.030,0-35,0––Cu 0,75; ≥FeH 39,5; Al 0,15-0,60
904L0,022,000,0450,0351,0019.0-23.023,0-28,04.00-5.000,1Với 1,00-2,00
Hợp kim 200,072,000,0450,0351,0019.0-21.032,0-38,02,00-3,00–Với 3,0-4,0; ≥ Nb 8 × C; 1,00
XM-10,085,0-6,50,040,18-0,351,0016.00-18.05,0-6,5––Với 1,75-2,25
XM-20,152,000,050,11-0,161,0017,0-19,08,0-10,00,40-0,60–Al 0,60-1,00
XM-50,152,5-4,50,2≥0,251,0017,0-19,07,0-10,0–––
XM-60,151,50-2,500,06≥0,151,0012.0-14.0––––
XM-100,088,0-10,00,0450,031,0019.0-21.55,5-7,5–0,15-0,40–
XM-110,048,0-10,00,0450,031,0019.0-21.55,5-7,5–0,15-0,40–
XM-150,082,000,030,031,50-2,5017,0-19,017,5-18,5–––
XM-170,087h50-9h000,0450,030,7517,5-22,05,0-7,02,00-3,000,25-0,50–
XM-180,037h50-9h000,0450,030,7517,5-22,05,0-7,02,00-3,000,25-0,50–
XM-190,064.0-6.00,0450,031,0020,5-23,511,5-13,51,50-3,000,20-0,40Cb 0,10-0,30, V 0,10-0,30
XM-210,082,000,0450,030,7518,0-20,08,0-10,5–0,16-0,30–
XM-270,010,40,020,020,425,0-27,5.50,50,75-1,500,015Với 0,20; Cb 0,05-0,20; (Ni + Cu) 0,50
XM-330,060,750,040,020,7525,0-27,0.50,50,75-1,500,04Với 0,20; Ti 0,20-1,00; ≥ Ti 7(C+N)
XM-340,082,50,04≥0,151,0017,5-19,5–1,50-2,50––
PH 13-8Mo0,050,20,010,0080,125.12-13.257,5-8,5–––
15-5PH0,0710,040,03114,0-15,53,5-5,5––2,5-4,5 Cu; 0,15-0,45 Nb
17-4 PH0,0710,040,03115,5-17,53.0-5.0––3,0-5,0 Đồng; 0,15-0,45 Nb
17-7 PH0,0910,040,04116,0-18,06,5-7,75––0,75-1,5 Al
Thép không gỉC, ≤Mn, ≤P, ≤S, ≤Và, ≤CrTRONGMoN, ≤Các yếu tố khác, ≤


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