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牌號	F593 384
美國UNS	S38400
對應標準	ASTM F593-2017 不銹鋼螺栓、六角螺釘和螺柱標準規范 Standard Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs
歸類	奧氏體不銹鋼

F593 384 化學元素成分含量(%)

成分	C	Si	Mn	P	S	Cr	Ni	Mo ^①
最小值	-	-	-	-	-	15	17	-
最大值	0.08	1	2	0.045	0.03	17	19	0.5

① 由制造商選擇添加元素。

碳當量計算

F593 384 機械性能

公稱直徑 inch 試樣	熱處理或狀態	抗拉強度 σ_b ksi	屈服點 σ_s ksi	斷后伸長率或延伸率 δ %	硬度 HBW
1/4 ~ 1-1/2 (全尺寸)	AF	65~85	≥20		HR (B85 max)
1/4 ~ 1-1/2 (全尺寸)	A	75~100	≥30		HR (B65~95)
1/4 ~ 5/8 (全尺寸)	CW1	100~150	≥65		HR (B95~C32)
3/4 ~ 1-1/2 (全尺寸)	CW2	85~140	≥45		HR (B80~C32)
1/4 ~ 5/8 (全尺寸)	SH1	120~160	≥95		HR (C24~C36)
3/4 ~ 1 (全尺寸)	SH2	110~150	≥75		HR (C20~C32)
1-1/8 ~ 1-1/4 (全尺寸)	SH3	100~140	≥60		HR (B95~C30)
1-3/8 ~ 1-1/2 (全尺寸)	SH4	95~130	≥45		HR (B90~C28)
1/4 ~ 1-1/2 (機加工)	AF	≥60	≥20	≥40
1/4 ~ 1-1/2 (機加工)	A	≥70	≥30	≥30
1/4 ~ 5/8 (機加工)	CW1	≥95	≥60	≥20
3/4 ~ 1-1/2 (機加工)	CW2	≥80	≥40	≥25
1/4 ~ 5/8 (機加工)	SH1	≥115	≥90	≥12
3/4 ~ 1 (機加工)	SH2	≥105	≥70	≥15
1-1/8 ~ 1-1/4 (機加工)	SH3	≥95	≥55	≥20
1-3/8 ~ 1-1/2 (機加工)	SH4	≥90	≥40	≥28

注1： “全尺寸”指的拉力測試試件是使用前的狀態未經改變的完整的緊固件產品。
注2：A——Machined from annealed or solution-annealed stock thus retaining the properties of the original material, or hot-formed and solution-annealed.
AF——Headed and rolled from annealed stock and then reannealed.
AH——Solution annealed and age-hardened after forming.
CW——Headed and rolled from annealed stock thus acquining a degree of cold work; sizes 0.75 in. and larger may be hot worked and solution-annealed.
H——Hardened and tempered at 1050°F (565℃) minimum.
HT——Hardened and tempered at 525°F (274℃) minimum.
SH——Machined from strain hardened stock or cold-worked to develop the specified properties.