SS490 I-Beam, Q355B / S355JR / A572 Gr.50 I Beam JIS G3192 GB/T706 EN10025 ASTM A6

High tensile strength for heavy load bearing applications
Excellent toughness and stable low-alloy steel performance
Good weldability and easy on-site fabrication
Compliant with JIS standard for Japan engineering projects
Wide size selection for heavy construction & machinery

Product Overview

SS490 hot rolled I-Beam is Japanese JIS G3192 high strength low alloy structural I beam, equivalent grades Q355B(GB), S355JR(EN) and A572 Gr.50(ASTM). Manufactured following JIS G3192, GB/T706, EN10025 and ASTM A6 standards.

The I-shape cross-section delivers outstanding bending resistance. SS490 I-beam has balanced strength and plasticity, reliable welding and cutting performance. It can be drilled, cut and welded for heavy structural construction.

This grade I beam is widely used for Japanese heavy load engineering projects, warehouse beams, crane supporting structures, bridge auxiliary frames and heavy mechanical supports. We supply full size range hot rolled SS490 I-Beam, surface options: black, shot blasted or pickled. Custom fixed-length cutting service supported.

I-Beam

Chemical & Mechanical Property Snapshot

Grade	C(Max,%)	Si(%)	Mn(%)	P(Max,%)	S(Max,%)	Min Yield Strength(MPa)	Tensile Strength(MPa)	Elongation Min(%)	Impact Test
SS490	0.18	≤0.55	≤1.50	0.035	0.035	325	490~610	21	+20℃ Charpy V-notch

Detailed Technical Specifications

Item	Specification
Product Name	SS490 Hot Rolled I-Beam
Equivalent Grade	Q355B, S355JR, A572 Gr.50
Standards	JIS G3192, GB/T706, EN10025, ASTM A6
Surface	Black / Shot blasting / Pickling
Size Range	10# ~ 63# I-beam, custom sizes available
Length	6m,9m,12m or custom cut length
MOQ	5 Ton
Delivery Time	7-15 working days
Package	Bundled with steel strips, export seaworthy packing
Tolerance	Meet JIS G3192 / GB/T706 dimensional tolerance

Dimension Table

Designation	Height (H) mm	Flange Width (B) mm	Web Thickness (tw) mm	Flange Thickness (tf) mm	Weight kg/m	Section Area cm²
I10#	100	68	4.5	7.6	11.26	14.3
I12#	120	74	5.0	8.4	13.99	17.8
I14#	140	80	5.5	9.1	16.89	21.5
I16#	160	88	6.0	9.9	20.51	26.1
I18#	180	94	6.5	10.7	24.14	30.8
I20a	200	100	7.0	11.4	27.91	35.5
I20b	200	102	9.0	11.4	31.07	39.5
I22a	220	110	7.5	12.3	33.07	42.0
I22b	220	112	9.5	12.3	36.52	46.4
I25a	250	116	8.0	13.0	38.11	48.5
I25b	250	118	10.0	13.0	42.03	53.5
I28a	280	122	8.5	13.7	43.49	55.4
I28b	280	124	10.5	13.7	47.89	61.0
I30a	300	126	9.0	14.4	48.00	61.2
I30b	300	128	11.0	14.4	52.79	67.2
I30c	300	130	13.0	14.4	57.50	73.2
I36a	360	136	10.0	15.8	60.04	76.3
I36b	360	138	12.0	15.8	65.69	83.5
I36c	360	140	14.0	15.8	71.34	90.7
I40a	400	142	10.5	16.5	67.59	86.1
I40b	400	144	12.5	16.5	73.87	94.1
I40c	400	146	14.5	16.5	80.16	102.1
I45a	450	150	11.5	18.0	80.42	102.4
I45b	450	152	13.5	18.0	87.48	111.4
I45c	450	154	15.5	18.0	94.55	120.4
I56a	560	166	12.5	21.0	106.32	135.4
I56b	560	168	14.5	21.0	115.11	146.5
I56c	560	170	16.5	21.0	123.90	157.6
I63a	630	176	13.0	22.0	121.41	154.7
I63b	630	178	15.0	22.0	131.30	167.3
I63c	630	180	17.0	22.0	141.19	179.9
IPN80	80	42	3.9	5.9	6.0	7.6
IPN100	100	50	4.5	6.8	8.3	10.6
IPN120	120	58	5.1	7.7	11.1	14.2
IPN140	140	66	5.7	8.6	14.3	18.3
IPN160	160	74	6.3	9.5	17.9	22.8
IPN180	180	82	6.9	10.4	21.9	27.9
IPN200	200	90	7.5	11.3	26.2	33.4
IPN220	220	98	8.1	12.2	31.1	39.5
IPN240	240	106	8.7	13.1	36.4	46.2
IPN270	270	114	9.5	14.2	42.2	53.7
IPN300	300	124	10.2	15.3	48.1	61.3
IPN330	330	133	11.0	16.3	54.7	69.7
IPN360	360	142	11.8	17.4	61.2	78.2
IPN400	400	152	12.8	18.6	69.4	88.5
IPN450	450	165	14.0	20.0	79.6	101.5
IPN500	500	177	15.2	21.3	90.7	115.7
IPN550	550	190	16.5	22.7	103.0	131.2
S6×12.5	152.4	63.5	4.3	7.5	18.6	23.7
S8×18.4	203.2	80.0	5.3	8.8	27.4	34.9
S10×25.4	254.0	88.9	6.1	10.2	37.8	48.1
S12×31.8	304.8	101.6	6.6	10.9	47.3	60.1
S15×42.9	381.0	127.0	7.9	12.8	63.8	81.1
S18×54.7	457.2	152.4	9.0	14.5	81.4	103.5
S20×65.4	508.0	152.4	10.0	16.0	97.3	123.7
S24×79.9	609.6	177.8	10.9	17.4	119.0	151.3
IS100	100	50	4.2	7.2	8.4	10.7
IS125	125	65	4.8	8.1	11.9	15.1
IS150	150	75	5.4	9.0	15.7	19.9
IS200	200	100	6.2	10.2	25.4	32.3
IS250	250	125	6.9	11.6	37.3	47.5
IS300	300	150	7.6	13.0	50.7	64.5
IS350	350	165	8.1	14.2	61.8	78.6
IS400	400	180	8.6	15.3	72.5	92.2

Product Comparison Table

Material Grade	Equivalent International Grade	Standard	Min Yield Strength (MPa)	Tensile Strength (MPa)	Core Features	Typical Application
SS490	Q355B / S355JR / A572 Gr.50	JIS G3192, GB/T706, EN10025, ASTM A6	325	490~610	JIS high strength structural low alloy steel, good toughness, heavy load capacity	Japanese heavy load engineering, warehouse beams, crane support structures

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FAQs

What is the equivalent grade of SS490 I-Beam?

SS490 I-Beam is equivalent to Chinese Q355B, European S355JR and American A572 Gr.50.

What is the mechanical property of SS490 I-Beam?

The minimum yield strength is 325 MPa, tensile strength range 490~610 MPa, minimum elongation 21%.

What standards does SS490 I-Beam follow?

Our SS490 hot rolled I-beam complies with JIS G3192, GB/T706, EN10025 and ASTM A6. Mill Test Certificate (MTC) can be supplied.

Can I get custom cut SS490 I-Beam?

Yes, custom cutting service available, we can cut I-beam to your required project length.

Where is SS490 I-Beam commonly applied?

It is mainly used in Japanese heavy-load engineering, warehouse frames, crane beams, bridge auxiliary structures and heavy mechanical equipment supports.

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SS490 I-Beam, Q355B / S355JR / A572 Gr.50 I Beam JIS G3192 GB/T706 EN10025 ASTM A6