Carbon steel rods for fasteners

Chemical analysis Chemische Analyse Analisi chimiche
Type	DIN	SAE	EU	Chemical composition
				C		MN		Si	S		P	Cr		Mo		Al		B
				Min.	Max.	Min.	Max.	Max	Min.	Max.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.
Alloyed steels	1.7218	4130	25CrMo4	0.22	0.29	0.60	0.90	0.30		0.025	0.025	0.90	1.20	0.15	0.30
	1.7220	4135	34CrMo4	0.32	0.36	0.60	0.90	0.30		0.025	0.025	0.90	1.20	0.15	0.25
	1.7033	5132	34Cr4	0.34	0.38	0.65	0.80	0.30		0.025	0.025	0.90	1.20
	1.7034	5135	37Cr4	0.36	0.40	0.75	0.90	0.30		0.025	0.025	1.05	1.20
	1.7035	5140	41Cr4	0.38	0.43	0.65	0.90	0.30		0.025	0.025	0.90	1.20
	1.7225	4140	42CrMo4	0.40	0.44	0.65	0.90	0.30		0.025	0.025	0.90	1.20	0.15	0.35
				0.40	0.45	0.60	0.90	0.30	0.020	0.040	0.025	0.90	1.20
	1.7227	4140	42CrMoS4	0.40	0.45	0.65	0.90	0.20	0.020	0.035	0.025	0.90	1.20	0.15	0.30
Carbon steels			RST 36-2	0.06	0.10	0.25	0.50	0.30		0.030	0.030
	1.0303		QST 32-3		0.06	0.20	0.40	0.10		0.030	0.030					0.020	0.050
	1.1122		CQ-10	0.05	0.08	0.25	0.45	0.10		0.030	0.030					0.020	0.060
	1.0214		QST 36-3	0.08	0.13	0.35	0.60	0.10		0.030	0.030					0.020	0.060
	1.1152		CQ22	0.18	0.24	0.30	0.60	0.20		0.030	0.030					0.015	0.060
	1.1132		CQ15	0.15	0.18	0.30	0.65	0.10		0.030	0.030					0.020	0.060
				0.17	0.20	0.70	0.90	0.10		0.030	0.030					0.020	0.060
			K50	0.45	0.50	0.50	0.70	0.30		0.030	0.030					0.015	0.060
	1.1192		CQ45	0.42	0.50	0.50	0.80	0.20		0.030	0.030
	1.1192		CQ45	0.44	0.48	0.50	0.80	0.12	0.015	0.035	0.030
Boron steels				0.16	0.20	0.70	0.90	0.10		0.025	0.025							0.0020	0.0060
	1.5508		22B2	0.19	0.24	0.50	0.80	0.20		0.025	0.025							0.0020	0.0060
	1.5523		19 MnB4	0.19	0.23	0.80	1.00	0.15		0.025	0.025							0.0020	0.0060
			28B2	0.26	0.30	0.70	1.00	0.20		0.025	0.025							0.0010	0.0060
			35B2	0.32	0.38	0.50	0.80	0.20		0.025	0.025							0.0010	0.0060
				0.38	0.42	0.85	1.05	0.25		0.025	0.025							0.0010	0.0060

Mechanical properties Mechanische Eigenschaften Proprietà meccaniche
Type	DIN	SAE	EU	Rm(N/mm2)			Thermic treatment			Applications
				Process
				KRG	KGK	RGK	Type	°C	Cooling	Tensile
Alloyed steels	1.7218	4130	25CrMo4	580	560	600
	1.7220	4135	34CrMo4	600	580	620	hardened and tempered	850	oil	10.9/12.9
	1.7033	5132	34Cr4	580	560	600	hardened and tempered	850	oil	10.9/12.9
	1.7034	5135	37Cr4	590	570	610	hardened and tempered	850	oil	10.9
	1.7035	5140	41Cr4	620	600	640	hardened and tempered	850	oil	10.9
	1.7225	4140	42CrMo4	630	610	650	hardened and tempered	850	oil	Lozenges
				620	600	640	hardened and tempered	850	oil	Stamp and mechanizes
	1.7227	4140	42CrMoS4	630	610	650	hardened and tempered	850	oil	Stamp and mechanizes
Carbon steels			RST 36-2
	1.0303		QST 32-3	460	350	400				Semitubular pieces
	1.1122		CQ-10	480	380	440	casehardening			4.6/4.8
	1.0214		QST 36-3	510	400	460				4.6/4.8
	1.1152		CQ22				casehardening	880	water/polymers	5.6/5.8/5.9/6.0/6.8
	1.1132		CQ15	540	420	480	casehardening	900	water/polymers
				640	500	560	casehardening	890	oil
			K50				hardened	870	oil	Steel nails
	1.1192		CQ45	580	620	710	hardened	860	oil	Mechanical nails
	1.1192		CQ45				hardened	860	oil	Mechanized
Boron steels				440	480	540	carbonitrided	880	oil
	1.5508		22B2	450	490	550	hardened and tempered	890	oil	8.8
	1.5523		19 MnB4	470	500	560	hardened and tempered	890	oil	8.8/9.8
	1.5510		28B2	500	540	600	hardened and tempered	890	oil	8.8/9.8/10.9
			35B2	520	560	620	hardened and tempered	860	oil	8.8/9.8/10.9
				540	580	640	hardened and tempered	860	oil	8.8/9.8/10.9