EN 10297-1 Seamless Alloy Mechanical Tube

Product Details

EN 10297-1 Seamless Alloy Mechanical Tube

The steel grades 41Cr4, 25CrMo4, 30CrMo4, 34CrMo4, 42CrMo4, 36CrNiMo4, 30CrNiMo4, 41NiCrMo7-3-2 which are covered by EN 109207-1 have a very common general purpose grade of medium carbon, Cr-Mo steel. The flexibility afforded by heat treatment options allows it to attain a range of toughness and strength values. Good hardenability, strength, wear resistance, toughness, and ductility. Heat-treatable steel for parts in machinery and plant construction, automotive and aircraft components with high toughness as axle journals, gears, make high-strength parts of compressors, turbines, working elements of heavy ground and underground equipment, and parts of agricultural machines.

EN 10297-1 Seamless Tube Size:

OD: 26.9-610mm

WT: 2.3-100mm

Length: 3000-12000mm

Grade: 41Cr4, 25CrMo4, 30CrMo4, 34CrMo4, 42CrMo4, 36CrNiMo4, 30CrNiMo4, 41NiCrMo7-3-2 which are covered by EN 109207-1

(1)  Chemical Composition:

Steel Grade	C		Si		Mn		P	S	Cr	Mo		Ni		Ala	Cu	N	Nb	Ti	V
	Min.	Max.	Min.	Max.	Min.	Max.	Max.	Max.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Max.	Max.	Max.	Min.	Max.
E275K2	–	0.20	–	0.40	0.50	1.40	0.030	0.030	0.30	–	0.10	–	0.30	0.020	0.35	0.015	0.05	0.03	–	0.05
E355K2	–	0.20	–	0.50	090	1.65	0.030	0.030	0.30	–	0.10	–	0.50	0.020	0.35	0.015	0.05	0.05	–	0.15
E420K2	0.16	0.22	0.10	0.50	1.30	1.70	0.030	0.035	0.30	–	0.08	–	0.40	0.010	0.30	0.020	0.07b	0.05	0.08	0.15b
E460K2	–	0.20	–	0.60	1.00	1.70	0.030	0.030	0.30	–	0.10	–	0.80	0.020	0.70	0.025	0.05b	0.05	–	0.20b
E590K2	0.16	0.22	0.10	0.50	1.30	1.70	0.030	0.035	0.30	–	0.08	–	0.40	0.010	0.30	0.020	0.07b	0.05	0.08	0.15b
E730K2	–	0.20	–	0.50	1.40	1.70	0.025	0.025	0.30	0.30	0.45	0.30	0.70	0.020	0.20	0.020	0.02	0.05	–	0.12

Steel Grade	C		Si		Mn		P	S	Cr		Mo		Ni		Cu
	Min.	Max.	Min.	Max.	Min.	Max.	Max.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Max.
41Cr4	0.38	0.45	–	0.40	0.60	0.90	0.035	0.035	0.90	1.20	–	–	–	–	–	–	–	–	–	–
25CrMo4	0.22	0.29	–	0.40	0.60	0.90	0.035	0.035	0.90	1.20	0.15	0.30	–	–	–	–	–	–	–	–
30CrMo4	0.27	0.34	–	0.35	0.35	0.60	0.035	0.035	0.80	1.15	0.15	0.30	–	–	–	–	–	–	–	–
34CrMo4	0.30	0.37	–	0.40	0.60	0.90	0.035	0.035	0.90	1.20	0.15	0.30	–	–	–	–	–	–	–	–
42CrMo4	0.38	0.45	–	0.40	0.60	0.90	0.035	0.035	0.90	1.20	0.15	0.30	–	–	–	–	–	–	–	–
36CrNiMo4	0.32	0.40	–	0.40	0.50	0.80	0.035	0.035	0.90	1.20	0.15	0.30	0.90	1.20	–	–	–	–	–	–
30CrNiMo4	0.26	0.34	–	0.40	0.30	0.30	0.035	0.035	1.8	2.20	0.30	0.50	1.80	2.20	–	–	–	–	–	–
41NiCrMo7-3-2	0.38	0.44	–	0.30	0.60	0.90	0.025	0.025	0.70	0.90	0.15	0.30	1.65	2.00	0.25	–	–	–	–	–
If there are enough other nitrogen adhesives, the minimum aluminium content is not applicable. The maximum total content of Nb and V is 0.20%.

Mechanical Properties of Seamless Circular Tube:

Steel Grade	Minimum Mechanical Properties											Impact Properties
	Yield Strength (ReH) Mpa					Tensile Strength (Rm) Mpa				Elongation (A%)		Minimum average absorbed energy, KV min. J at a test temperature of -20℃ min
	For T in mm					For T in mm
	≤ 16	＞16 ≤ 40	＞40 ≤ 65	＞65 ≤ 80	＞80 ≤ 100	≤ 16	＞16 ≤ 40	＞40 ≤ 65	＞65 ≤ 100	l	t	l	t
E275K2	275	265	255	245	235	410	410	410	380	22	20	40	27
E355K2	355	345	335	315	295	490	490	470	470	20	18	40	27
E420K2	420	400	390	370	360	600	560	530	500	19	17	27	20
E460K2	460	440	430	410	390	550	550	550	520	19	17	40	27
E590K2	590	540	480	455	420	700	650	570	520	16	14	40	27
E275K2	730	670	620	580	540	790	750	700	680	15	13	40	27
Note: l=longitudinal; t=transverse; a:1Mpa=1N/mm2

Steel Grade	Yield Strength (ReH) Mpa				Tensile Strength (Rm) Mpa				Elongation (A%) min
	For T in mm				For T in mm
	≤ 8	＞8 ≤ 20	＞20 ≤ 50	＞50 ≤ 80	≤ 8	＞8 ≤ 20	＞20 ≤ 50	＞50 ≤80	≤ 8		＞8 ≤ 20		＞20 ≤ 50		＞50 ≤ 80
									l	t	l	t	l	t	l	t
41Cr4	800	660	560	–	1000	900	800	–	11	9	12	10	15	13	16	14
25CrMo4	700	600	450	400	900	800	700	650	12	10	14	12	15	13	16	14
30CrMo4	750	630	520	480	950	850	750	700	12	10	13	11	14	12	15	13
34CrMo4	800	650	550	500	1000	900	800	750	11	9	12	10	14	12	15	13
42CrMo4	900	750	650	550	1100	1000	900	800	10	8	11	9	12	10	13	11
36CrNiMo4	900	800	700	600	1100	1000	900	800	10	8	11	9	12	10	13	11
30CrNiMo4	1050	1050	900	800	1250	1250	1100	1000	9	7	9	7	10	8	11	9
41NiCrMo7-3-2	950	870	800	750	1150	1050	1000	900	9	7	10	8	11	9	12	10

Tube size chart:

Lengths

Pipes are supplied with lengths according to standard requirements.

Any lengths different from the standard ones are subject to additional negotiations.

Protection

Pipes are supplied: – black and bare – external varnished with black or clear lacquer – oiled Upon request pipes ends are protected with plastic caps.

Marking

Pipes are supplied with marking according to standards and customer requests. Marking is painted and/or hard stencilled on pipe ends. The same data, as well as additional information according to the customer’s request, are indicated on the bundle tags.

Certification

Pipes are supplied with 3.1. inspection certificate, in conformity with EN 10204.

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