1045 C45 High Quality Round Steel Bar

1045 C45 High Quality Round Steel Bar
Production Description

	Standard	C	Mn	Si	S	P	V	Ti	Yield Strength Map	Tensile Strength Map	Elongation %
St45	DIN2931	≤0.21	≥0.4	≤0.35	≤0.025	≤0.025	≤0.05	≤0.03	≥255	440-570	21
St52		≤0.22	≤1.6	≤0.55	≤0.025	≤0.025	≤0.05	≤0.03	≥355	490-630	22

 
Size Tolerances
1045/45# High Quality 20mncr5 round steel bar Factory Supply zinc round bar Hot-rolled steel round or square bar:

d/a(mm)	5.5-7	7-20	20-30	30-50	50-80	80-110	110-150	150-190	190-250
(mm)	+0.30 -0.30	+0.35 -0.35	+0.40 -0.40	+0.50 -0.50	+0.70 -0.70	+1.0 -1.0	+1.3 -1.3	+2.0 -2.0	+2.5 -2.5

 
Application
1045/45# High Quality 20mncr5 round steel bar Factory Supply zinc round bar
1): Can be used in many fields such as building, automobile, shipbuilding, petrochemical, machinery, medicine, food, electric power, energy, space, building and decoration, etc.
2): Can be made into mould template, mortise pin, column
3): This kind of steel have good mechanical property, is widely used in structural parts which may support stress alternation, especially made into some connecting rods, bolts, wheel gear...
 

Diameter(mm)	Weight (kg/m)	Diameter(mm)	Weight(kg/m)
	Round Bar		Round Bar
5.5	0.186	13	1.04
6	0.222	14	1.21
6.5	0.26	15	1.39
7	0.302	16	1.58
8	0.395	17	1.78
9	0.499	18	2
10	0.617	19	2.23
*11	0.746	20	2.47
12	0.888	21	2.72
22	2.98	63	24.5
*23	3.26	*65	26
24	3.55	*68	28.5
25	3.85	70	30.2
26	4.17	75	34.7
*27	4.49	80	39.5
28	4.83	85	44.5
*29	5.18	90	49.9
30	5.55	95	55.6
*31	5.92	100	61.7
32	6.31	105	68
*33	6.71	110	74.6
34	7.13	115	81.5
*35	7.55	120	88.8
36	7.99	125	96.3
38	8.9	130	104
40	9.86	140	121
42	10.9	150	139
45	12.5	160	158
48	14.2	170	178
50	15.4	180	200
53	17.3	190	223
*55	18.6	200	247
56	19.3	220	298
*58	20.7	250	385