High Strength Alloys

Alloy Steel Round Bars

Shainal Steels Alloy Steel Round Bars represent the pinnacle of strength and versatility. Engineered for resilience, these solid cylindrical bars are available in a comprehensive spectrum of grades to satisfy diverse industrial mandates. As a premier manufacturer, we integrate superior metallurgical processes to ensure our bars deliver exceptional performance across all applications.

We manufacture strictly adhering to global specifications such as ASTM A182 and ASME SA182. Our inventory spans diameters from 5mm to 500mm, with custom lengths up to 6000mm, ensuring we meet precise EN, DIN, JIS, and AISI standards. Whether you require black, bright polished, or rough turned finishes, Shainal Steel guarantees dimensional accuracy through rigorous cold finishing and heat treatment protocols.

Designed for high-stress environments, our bars offer exceptional resistance to wear and corrosion. They are the material of choice for automotive shafts, aerospace fasteners, and critical defense machinery where failure is not an option.

Available Grades & Types

Alloy Steel F11 Round Bar

Alloy Steel F12 Round Bar

Alloy Steel F22 Round Bar

Alloy Steel F91 Round Bar

4130 Round Bar

4135 Round Bar

4145 Round Bar

4150 Round Bar

4320 Round Bar

41Cr4 Round Bar

4330V Round Bar

SAE 8620 Round Bar

Premium Quality SAE 8620 & ASTM A182 F22

Get the latest price per meter in India. We stock EN 34CrMo4, DIN 1.7035, and F91 grades ready for immediate dispatch.

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01. Chemical Composition

Grade	C (%)	Mn (%)	Si (%)	Cr (%)	Mo (%)	Ni (%)	V (%)	P (%)	S (%)
Alloy Steel F11	0.05 – 0.15	0.30 – 0.60	0.50 – 1.00	1.00 – 1.50	0.44 – 0.65	—	—	≤ 0.025	≤ 0.025
Alloy Steel F12	0.05 – 0.20	0.30 – 0.60	0.50 – 1.00	0.80 – 1.25	0.44 – 0.65	—	—	≤ 0.025	≤ 0.025
Alloy Steel F22	0.05 – 0.15	0.30 – 0.60	0.50 – 1.00	2.00 – 2.50	0.87 – 1.13	—	—	≤ 0.025	≤ 0.025
Alloy Steel F91	0.08 – 0.12	0.30 – 0.60	0.20 – 0.50	8.00 – 9.50	0.85 – 1.05	—	0.18 – 0.25	≤ 0.020	≤ 0.010
SAE 8620	0.18 – 0.23	0.70 – 0.90	0.15 – 0.35	0.40 – 0.60	0.15 – 0.25	0.40 – 0.70	—	≤ 0.035	≤ 0.040
4330V	0.28 – 0.33	0.40 – 0.70	0.15 – 0.35	0.75 – 1.00	0.30 – 0.45	1.65 – 2.00	0.07 – 0.12	≤ 0.025	≤ 0.025
9310	0.08 – 0.13	0.45 – 0.65	0.15 – 0.35	1.20 – 1.50	0.08 – 0.15	3.00 – 3.50	0.07 – 0.12	≤ 0.025	≤ 0.025
4320	0.17 – 0.23	0.40 – 0.60	0.15 – 0.35	0.40 – 0.60	0.20 – 0.30	1.65 – 2.00	—	≤ 0.035	≤ 0.040
41Cr4	0.38 – 0.45	0.60 – 0.90	0.10 – 0.40	0.90 – 1.20	≤ 0.10	—	—	≤ 0.025	≤ 0.035
4150	0.48 – 0.53	0.75 – 1.00	0.15 – 0.35	0.80 – 1.10	0.15 – 0.25	—	—	≤ 0.035	≤ 0.040
4135	0.33 – 0.38	0.40 – 0.70	0.15 – 0.35	0.80 – 1.10	0.15 – 0.25	—	—	≤ 0.035	≤ 0.040
4130	0.28 – 0.33	0.40 – 0.60	0.15 – 0.35	0.80 – 1.10	0.15 – 0.25	—	—	≤ 0.035	≤ 0.040

02. Mechanical Properties

Grade	Tensile Strength (MPa)	Yield Strength (MPa)	Elongation (%)	Hardness (HB)
Alloy Steel F11	415 – 585	205 – 275	20	143 – 197
Alloy Steel F12	485 – 655	275 – 345	18	163 – 217
Alloy Steel F22	620 – 760	415 – 485	18	197 – 241
Alloy Steel F91	620 – 760	415 – 585	20	190 – 240
SAE 8620	885 – 1080	580 – 720	15 – 20	217 – 255
4330V	930 – 1080	825 – 930	13 – 16	260 – 302
9310	930 – 1080	790 – 930	12 – 15	269 – 321
4320	885 – 1030	685 – 860	18	217 – 255
41Cr4	800 – 1000	650 – 800	12 – 16	207 – 255
4150	850 – 1000	655 – 830	12 – 15	223 – 255
4135	700 – 900	460 – 650	15 – 20	197 – 255
4130	560 – 670	435 – 515	18 – 25	187 – 241

03. Standard Weight Chart

Size (Inch)	Hexagon (kg/m)	Square (kg/m)	Round (kg/m)	Octagon (kg/m)
5/64	.0019	.0022	.0017	.0018
3/32	.0025	.0029	.0023	.0024
1/16	.0012	.0013	.0010	.0011
7/64	.0034	.0039	.0031	.0033
9/64	.0058	.0067	.0053	.0056
1/8	.0046	.0053	.0042	.0044
5/32	.0072	.0083	.0065	.0069
3/16	.0104	.0120	.0094	.0099
13/64	.0121	.0140	.0110	.0116
11/64	.0087	.0100	.0079	.0083
7/32	.0141	.0163	.0128	.0135
15/64	.0162	.0187	.0147	.0155
17/64	.0207	.0240	.0188	.0199
9/32	.0233	.0269	.0211	.0223
1/4	.0184	.0213	.0167	.0176
19/64	.0259	.0300	.0235	.0248
5/16	.0288	.0332	.0261	.0275
11/32	.0348	.0402	.0316	.0334
23/64	.0381	.0439	.0345	.0364
3/8	.0414	.0478	.0376	.0397
21/64	.0318	.0360	.0288	.0304
25/64	.0450	.0519	.0408	.0431
27/64	.0524	.0605	.0475	.0502
13/32	.0486	.0561	.0441	.0466
7/16	.0564	.0651	.0511	.0540
15/32	.0647	.0747	.0587	.0620
31/64	.0692	.0798	.0627	.0662
29/64	.0604	.0698	.0548	.0579
1/2	.0736	.0850	.0668	.0705
35/64	.0881	1.0017	.0799	.0844
33/64	.0783	.0904	.0710	.0750
9/16	.0932	1.0076	.0845	.0892
37/64	.0985	1.0136	.0893	.0943
19/32	1.0038	1.0199	.0941	.0994
17/32	.0831	.0960	.0754	.0796
39/64	1.0094	1.0263	.0992	1.0048
41/64	1.0209	1.0395	1.0096	1.0207
5/8	1.0150	1.0328	1.0043	1.0102
45/64	1.0456	1.0681	1.0320	1.0394
23/32	1.0521	1.0756	1.0380	1.0487
11/16	1.0392	1.0607	1.0262	1.0333
47/64	1.0588	1.0834	1.0440	1.0521
25/32	1.0797	2.0075	1.0630	1.0721
3/4	1.0656	1.0913	1.0502	1.0586
13/16	1.0944	2.0245	1.0763	1.0862
7/8	2.0254	2.0603	2.0045	2.0159
29/32	2.0418	2.0792	2.0193	2.0316
27/32	2.0096	2.0421	1.0901	2.0008
15/16	2.0588	2.0988	2.0347	2.0479
31/32	2.0763	3.0191	2.0506	2.0646
1-1/16	3.0324	3.0838	3.0015	3.0183
1-1/8	3.0727	4.0303	3.0380	3.0569
1	2.0945	3.0400	2.0670	2.0820
1-3/16	4.0152	4.0795	3.0766	3.0977
1-1/4	4.0601	5.0313	4.0172	4.0407
1-3/8	5.0567	6.0428	5.0049	5.0332
1-7/16	6.0085	7.0026	5.0518	5.0827
1-1/2	6.0625	7.0650	6.0008	6.0345
1-5/16	5.0072	5.0857	4.0600	4.0858
1-9/16	7.0189	8.0301	6.0519	6.0885
2-5/8	20.029	23.043	18.040	19.043
2-11/16	21.027	24.056	19.029	20.037
1-11/16	8.0385	9.0682	7.0604	8.0030
1-5/8	7.0775	8.0978	7.0051	7.0446
1-3/4	9.0018	10.041	8.0178	8.0634
1-7/8	10.035	11.095	9.0388	9.0911
1-15/16	11.005	12.076	10.002	10.058
1-13/16	9.0673	11.017	8.0773	9.0265
2	11.078	13.060	10.068	11.028
2-3/16	14.009	16.027	12.078	13.049
2-1/16	12.053	14.046	11.036	11.099
2-1/4	14.091	17.021	13.052	14.027
2-5/16	15.075	18.018	14.028	15.008
2-3/8	16.061	19.018	15.006	15.091
2-1/8	13.030	15.035	12.006	12.073
2-7/16	17.049	20.020	15.087	16.075
2-9/16	19.034	22.033	17.053	18.052
2-1/2	18.040	21.025	16.069	17.062
2-3/4	25.071	22.027	21.033	20.019
6	122.04	96.013	101.05	-
2-3/16	26.090	23.029	22.031	21.012
6-1/16	125.00	98.015	103.06	-
2-7/8	28.010	24.034	23.031	22.007
6-1/8	127.06	100.02	105.08	-
2-5/16	29.034	25.041	24.033	23.004
6-3/16	130.02	102.02	108.00	-
3	30.060	26.050	25.038	24.003
6-1/4	132.08	104.03	110.02	-
3-1/16	31.089	27.062	26.045	25.005
6-5/16	135.05	106.04	112.04	-
3-1/8	33.020	28.076	27.054	26.008
6-3/8	138.02	108.05	114.06	-
3-3/16	34.055	29.092	28.065	27.013
6-7/16	140.09	110.07	116.09	-
3-1/4	35.091	—	29.079	28.021
6-1/2	143.07	112.08	119.01	-
3-5/16	37.021	—	30.094	29.030
6-9/16	146.04	115.00	121.04	-
3-3/8	38.073	—	32.012	30.042
6-5/8	149.02	117.02	123.08	-
3-7/16	40.018	—	33.032	31.055
6-11/16	152.01	119.04	126.01	-
3-1/2	41.06	—	34.054	32.071
6-3/4	154.09	121.07	128.05	-
3-9/16	43.015	—	35.079	33.090
6-13/16	157.08	123.09	130.09	-
3-5/8	44.068	—	37.007	35.009
6-7/8	160.07	126.02	133.03	-
3-1/16	46.023	—	38.034	36.031
6-15/16	163.06	128.05	135.07	-
3-3/4	47.081	—	39.065	37.055
7	166.06	130.09	138.02	-
3-3/16	49.042	—	40.099	38.081
7-1/16	169.06	133.02	140.07	-
3-7/8	51.005	—	42.034	40.010
7-1/8	172.06	135.06	143.02	-
3-5/16	52.071	—	43.072	41.040
7-3/16	175.06	138.00	145.07	-
4	54.040	—	45.012	42.073
7-1/4	178.07	140.04	148.02	-
4-1/16	56.011	—	46.054	44.007
7-5/16	181.08	142.08	150.08	-
4-1/8	57.085	—	47.098	45.044
7-3/8	184.09	145.02	153.04	-
4-3/16	59.062	—	49.045	46.083
7-7/16	188.01	147.07	156.00	-
4-1/4	61.041	—	50.093	48.023
7-1/2	191.03	150.02	158.06	-
4-5/16	63.023	—	52.044	49.066
7-5/8	197.07	155.03	164.00	-
4-3/8	65.008	—	53.098	51.011
7-3/4	204.02	160.04	169.04	-
4-7/16	66.095	—	55.053	52.058
7-7/8	210.09	165.06	174.09	-
4-1/2	68.085	—	57.010	54.008
8	217.06	170.09	180.05	-
4-9/16	70.078	—	58.070	55.059
8-1/4	230.09	181.08	192.00	-
4-5/8	72.073	—	60.032	57.012
8-1/2	245.07	192.09	203.08	-
4-1/16	74.071	—	61.096	58.068
8-3/4	259.06	204.04	215.08	-
4-3/4	76.071	—	63.063	60.025
9	275.04	216.03	228.04	-
4-3/16	78.075	—	65.032	61.085
10	340.00	267.00	282.00	-
4-7/8	80.080	—	67.002	63.046
11	411.04	323.01	341.02	-
4-5/16	82.089	—	68.075	65.010
12	489.06	384.04	406.01	-
5	85.000	—	70.050	66.076
13	575	451	476	-
5-1/16	87.014	—	72.027	68.044
14	666	523	552	-
5-1/8	89.030	—	74.007	70.014
15	765	601	634	-
5-3/16	91.050	—	75.089	71.086
16	871	684	721	-
5-1/4	93.071	—	77.072	73.060
17	982	772	814	-
5-5/16	95.096	—	79.059	75.036
18	1102	865	912	-
5-3/8	98.023	—	81.047	77.015
19	1227	964	1017	-
5-7/16	100.05	—	83.038	78.095
20	1360	1068	1127	-
5-1/2	102.09	—	85.030	80.078
21	1499	1177	1242	-
5-9/16	105.02	—	87.025	82.062
22	1645	1292	1363	-
5-5/8	107.06	—	89.023	84.049
23	1798	1412	1490	-
5-1/16	110.00	—	91.022	86.038
24	1958	1538	1622	-
5-3/4	112.04	—	9323	88.029
25	2125	1669	1760	-
5-3/16	114.09	—	95.027	90.022
26	2298	1805	1904	-
5-7/8	117.04	—	97.033	92.017
27	2478	1946	2053	-
5-5/16	119.09	—	99.041	94.014
28	2665	2093	2208	-

* Weights are approximate. Contact Shainal Steel for precise tolerance data.

Material Specification

Thickness0.5mm – 500mm Dia
Range5mm – 500mm Diameter in 100mm – 6000mm Length
Diameter10 mm – 200 mm
DimensionsDIN, EN, JIS, BS, ASTM, AISI, ASME
Length1000 mm To 6000 mm Long
FormSquare, Round, Hex (A/F), Billet, Rectangle, Ingot, Forging Etc.
FinishBlack, Rough Turned, Bright Polished, Matt Finish, NO.4 Finish, BA Finish

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