X8NiCrAITi32-21 1.4959 - NF EN 10028-7-2008

牌号	X8NiCrAITi32-21
	1.4959
對應标準	NF EN 10028-7-2008 壓力容器用不鏽鋼扁平產品 Flat products made of steels for pressure purposes - Part 7 : stainless steels
歸類	奧氏體不鏽鋼
标簽	抗蠕變等級

X8NiCrAITi32-21 化學元素成分含量(%)

成分	C	Si	Mn	P	S	Cr	Ni	Cu	N	Ti	Co	Al	更多
最小值	0.05	-	-	-	-	19	30	-	-	0.25	-	0.25	Ni+Co:30~34
最大值	0.1	0.7	1.5	0.015	0.01	22	34	0.5	0.03	0.65	0.5	0.65	Ni+Co:30~34

◎ 未經買方同意，不得随意向鋼中添加表中未列的元素，冶煉精加工除外。采取一切必要措施以防在廢鋼和生產原料中帶入這些元素，因為其會削弱鋼的機械性能，降低鋼的适用性。

碳當量計算

X8NiCrAITi32-21 機械性能

條件	熱處理或狀态	抗拉強度 σ_b Mpa	屈服點 σ_s Mpa	斷後伸長率或延伸率 δ %	沖擊吸收能量 KV2 J
P：T ≤ 75	+AT	500~750	R_p0.2：≥170 R_p1.0：≥200 ①②	T ＜ 3mm: ≥30 T ≥ 3mm: ≥ 30 ②③	20℃： (l: ≥120；t: ≥80)

◎C- 冷軋帶鋼; H- 熱軋帶鋼; P- 熱軋中厚闆；T- 厚度；t- 橫向；l-縱向。
◎+A=軟化退火；+AT=固溶退火；+QT=淬火及回火；+RA=再結晶退火。

◎ 奧氏體鋼有足夠的韌性，不需要進行沖擊試驗。相比之下，奧氏體-鐵素體鋼必須按要求做沖擊試驗，以确保足夠的韌性。
*抗晶間腐蝕根據EN ISO 3651-2進行測試。在交貨條件下：有；在緻敏狀态下：無。
① 對于連續熱軋產品，可在詢價和訂購時商定Rp0.2(即表中σs)的最小值提高20MPa，Rp1.0的最小值提高10MPa。
② 如果在軋制寬度<300mm的帶材情況下，采用縱向試驗件，最小值減小如下:抗拉強度-15MPa，恒定标距的延伸率-5%，比例标距延伸率-2%。
③ T＜3mm：該值适用于标距為80mm、寬度為20mm的試件，也可以使用标距為50mm、寬度為12.5mm的試件。T ≥3mm：該值适用于标距為5.65√S的試件。

高溫下的最小屈服強度

Material designation		Heat treatment condition	Minimum 0.2% proof strength R_p0.2,MPa at a temperature (in°C) of:
Name	Number	Heat treatment condition	50①	100	150	200	250	300	350	400	450	500	550	600
X8NiCrAITi32-21	1.4959	+AT	159	140	127	115	105	95	90	85	82	80	75	75
			Minimum 1.0% proof strength R_p1.0,MPa at a temperature (in°C) of:
			50①	100	150	200	250	300	350	400	450	500	550	600
			185	160	147	135	125	115	110	105	102	100	95	95

① Determined by linear interpolation.

高溫下的最小抗拉強度

Material designation Minimum tensile strength R_m,MPa
at a temperature (in°C) of:
Name Number 50① 100 150 200 250 300 350 400 450 500 550 600
X8NiCrAITi32-21 1.4959 487 465 445 435 425 420 418 415 415 415 - -
① Determined by linear interpolation.

熱處理指南

Material designation		Hot forming		Heat treatment symbol	Solution anneailing ①②		Post weld heat treatment Creep resisting steels
Name	Number	Temperature ℃	Type of cooling	Heat treatment symbol	Temperature ℃ ③④	Type of cooling	Temperature ℃ ⑦	Type of cooling
X8NiCrAITi32-21	1.4959	1150 to 850	air	+AT	1100 to 1200 ⑤	water,air ⑥	900 to 950 ⑧	air

◎ a=air; o=oil; w=water.
◎ Scale and annealing colours produced during hot forming, heat treatment or welding may adversely affect the corrosion resistance. They should be removed as far as possible before use, e.g. by pickling.
◎ The temperatures of annealing should be agreed for simulated heat treated test pieces.
① The solution treatment may be omitted if the conditions for hot working and subsequent cooling are such that the requirements for the mechanical properties of the product and the resistance to intergranular corrosion as defined in EN ISO 3651-2 are obtained and provided these requirements are met even after appropriate subsequent solution annealing.
② Re-crystallizing annealing.
③ If heat treatment is carried out in a continuous furnace, the upper part of the range specified is usually preferred, or even exceeded.
④ The lower end of the range specified for solution annealing should be aimed at for heat treatment as part of further processing,because otherwise the mechanical properties might be affected. If the temperature of hot forming does not drop below the lower temperature for solution annealing.a temperature of 980℃ is adequate as a lower limit for Mo-free steels,a temperature of 1000℃ for steels with Mo contents up to 3% and a temperature of 1020℃ for steets with Mo contents exceeding 3%.

⑤ After solution annealing the grain size according to EN ISO 643 shall be 1 to 5.

⑥ cooling sufficiently rapid.

⑦ Minimum holding time:30min.Minimum holding time:30min.

⑧ Minimum holding time:30min.

蠕變性能

Designation		Heat treatment condition	Temperature	Strength for 1% (plastic) creep strain in MPa for ①
Name	Number	Heat treatment condition	°C	10000h	100000h
X8NiCrAITi32-21	1.4959	+AT	700	59	42
			710	55.5	38
			720	52	34.4
			730	48.5	31.3
			740	45	28.4
			750	41.7	26
			760	38.4	23.5
			770	35.6	21.3
			780	32.9	19.3
			790	30.5	17.6
			800	28.2	16
			810	26.2	14.7
			820	24.2	13.4
			830	22.4	12.1
			840	20.8	11.1
			850	19.1	10
			860	17.6	9.1
			870	16.1	8.2
			880	14.7	7.3
			890	13.4	6.5
			900	12.1	5.7
			910	10.9	5
			920	9.8	4.4
			930	8.8	3.9
			940	7.8	3.4
			950	6.9	2.9
			960	6.1	2.5
			970	5.3	2.1
			980	4.6	1.8
			990	4	1.6
			1000	3.5	1.4

◎ Values were taken from DIN 17460 [3].
① Values in parantheses involved time and/or stress extrapolation; values with asterisk involved time extrapolation.

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詢價

X8NiCrAITi32-21 對應不同标準

1	NF EN 10088-1-2005 不鏽鋼 - 第1部分：不鏽鋼清單
	X8NiCrAITi32-21 1.4959
2	NF EN 10028-7-2008 壓力容器用不鏽鋼扁平產品
	X8NiCrAITi32-21 1.4959
3	NF EN 10028-7-2000 壓力容器用不鏽鋼扁平產品
	X8NiCrAITi32-21 1.4959

注：數據僅供參考！如有疑問，請填寫"我要糾錯"！

Material designation		Minimum tensile strength R_m,MPa at a temperature (in°C) of:
Name	Number	50①	100	150	200	250	300	350	400	450	500	550	600
X8NiCrAITi32-21	1.4959	487	465	445	435	425	420	418	415	415	415	-	-

高溫下的最小屈服強度

高溫下的最小抗拉強度

熱處理指南

蠕變性能

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