BL2 - BS 3100-1991

牌号	BL2
對應标準	BS 3100-1991 一般工程用鑄鋼件 Specification for Steel castings for general engineering purposes
歸類	鑄鋼
标簽	低溫用合金鋼鑄鋼

BL2 化學元素成分含量(%)

成分	C	Si	Mn	P	S	Ni
最小值	-	-	-	-	-	3
最大值	0.12	0.6	0.8	0.03	0.03	4

①碳含量每降低0.01%，最大錳含量則增加0.04%，允許最大錳含量到1.1%

碳當量計算

BL2 機械性能

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
N+T或OQ+T或WQ+T	≥460	≥280	≥20	-60°C ≥20

A=for anneal by heating to a temperature above the AC3 and cool in the furnace
N=for normalize by heating to a temperature above the AC3 and cool in still air
OQ=for quench into oil from a temperature above the AC3
WQ=for quench into water from a temperature above the AC3
AH=for air harden by heating to a temperature above the AC3 and cool in air at a rate fast enough to produce a hardened microstructure
T=for temper by heating to a temperature below AC1
ST=for solution treat by heating to temperature high enough to dissolve and any intermetallic phases followed by a rapid cool.

近似對照表鑄鋼

日本	美國		德國		法國	英國
JIS	ASTM	UNS	DIN EN/DIN	W-Nr.	NF EN/NF	BS EN/BS
SCPL31	B3N	J31500	GS-10Ni14	1.5638	FC3-M	BL2 CLA10

BL2 對應不同标準

1	GB 715-1989 标準件用碳素熱軋圓鋼
	BL2
2	YB /T 4155-2006 标準件用碳素熱軋圓鋼及盤條
	BL2
3	BS 3100-1991 一般工程用鑄鋼件
	BL2

注：數據僅供參考！如有疑問，請填寫"我要糾錯"！