〔57〕球状石墨铸铁
（Spheroidal Graphite Iron Castings)
标准代号	规格号码	记号	拉伸试验Tensile requirements				硬度（HB)
			厚度（mm)	降伏強度（Mpa)	抗拉强度（MPa)	伸长率（%）
JIS	G5502	FCD350-22	-	≧230	≧370	≧17	≦179

DIN	1693	GGG-35-3	≦40	≧250	≧290	≧16	-


GB	1348	QT-400-15	-	≧250	≧400	≧15	130-180

JIS	G5502	FCD400-15	-	≧250	≧400	≧15	130-180

DIN	1693	GGG-40	≦50	≧250	≧400	≧15	-


CNS	2869	FCD 40	-	≧280	≧400	≧12	120-190

GB	1348	QT400-18	-	≧250	≧400	≧18	130-180

JIS	G5502	FCD400-18	-	≧250	≧400	≧12	≦201

ASTM	A536	Gr.60-40-18	≦50	≧276	≧414	≧18	-

DIN	1693	GGG-40	≦50	≧250	≧400	≧15	-


CNS	2869	FCD 50	-	≧300	≧450	≧10	-

GB	1348	QT450-10	-	≧310	≧450	≧10	-

JIS	G5502	FCD450-10	-	≧280	≧450	≧10	140-120

ASTM	A536	Gr.65-45-12	≦50	≧310	≧448	≧12	-


GB	1348	QT500-7	-	≧320	≧500	≧7	170-230

JIS	G5502	FCD500-7	-	≧320	≧500	≧7	170-230

ASTM	A536	Gr.80-55-06	-	≧379	≧552	≧6	-

DIN	1693	GGG-50	≦50	≧320	≧500	≧7	-


CNS	2869	FCD 60	-	≧380	≧550	≧3	120-270

GB	1348	QT600-3	-	≧370	≧600	≧3	190-270

JIS	G5502	FCD600-3	-	≧370	≧600	≧3	170-270

ASTM	A536	Gr.80-55-06	-	≧379	≧552	≧6	-

ASTM	A536	Gr.100-70-03	-	≧483	≧689	≧3	-

DIN	1693	GGG-60	-	≧380	≧600	≧3	-


CNS	2869	FCD 70	-	≧480	≧700	≧2	230-350

GB	1348	QT700-2	-	≧420	≧700	≧2	225-305

JIS	G5502	FCD700-2	-	≧420	≧700	≧2	180-300

ASTM	A536	Gr.100-70-03	≦50	≧483	≧689	≧3	-

DIN	1693	GGG-70	≦50	≧440	≧700	≧2	-


GB	1348	QT800-2	-	≧480	≧800	≧2	245-335

JIS	G5502	FCD800-2	-	≧480	≧800	≧2	200-330

ASTM	A536	Gr.120-90-02	≦50	≧621	≧827	≧2	-

DIN	1693	GGG-80	≦50	≧500	≧800	≧2	248-352


GB	1348	QT900-2	-	≧600	≧900	≧2	280-360

ASTM	A536	Gr.120-90-02	≦50	≧621	≧827	≧2	-