Q355B H-Beam | Medium Strength Structural H Beam, A572 Gr.50 A992 S355JR SM490A/B Equivalent

High yield strength for heavy load bearing
Excellent room-temperature impact toughness
Good weldability & easy fabrication
Stable mechanical performance for long-term structural use
Wide size range, customizable cutting service

Product Overview

Q355B H-Beam belongs to medium strength structural steel grade. It is equivalent to ASTM A572 Gr.50, A992, EN S355JR and JIS SM490A/B. The H-beam features optimized cross-section geometry, which distributes stress evenly. With high yield strength and reliable room temperature impact toughness, this structural H beam is widely adopted for high-rise building frames, bridge components, heavy-load supporting structures and industrial plant main frames. Our Q355B H shape steel is manufactured under standard production control, available in various standard dimensions, and we provide cutting, surface treatment and custom processing services to meet global engineering project requirements.

H-Beam

Chemical & Mechanical Property Snapshot

Item	Value
Grade	Q355B
Yield Strength ≥	355 MPa
Tensile Strength	470 – 630 MPa
Elongation ≥	21%
Impact Test	Room temperature (20℃) Charpy V-notch impact
C (Carbon)	≤0.20%
Mn (Manganese)	≤1.60%
Si (Silicon)	≤0.50%
P (Phosphorus)	≤0.035%
S (Sulfur)	≤0.035%

Detailed Technical Specifications

Specification	Details
Product Name	Q355B Medium Strength Structural H-Beam
Standard	GB/T 11263
Equivalent Grade	A572 Gr.50, A992, S355JR, SM490A/B
Size Range	Height:100–900mm; Flange width:100–400mm
Surface	Black / Shot blasting / Paint coating
Processing	Cut to length, drilling, bending
MOQ	5Ton
Lead Time	7–15 working days
Certification	ISO, Mill Test Certificate (MTC)

Dimension Table

Designation	Height (H) mm	Flange Width (B) mm	Web Thickness (tw) mm	Flange Thickness (tf) mm	Weight kg/m	Section Area cm²
Chinese Standard HW Wide-Flange H-Beam
HW100×100	100	100	6	8	17.2	21.9
HW125×125	125	125	6.5	9	23.8	30.3
HW150×150	150	150	7	10	31.9	40.6
HW200×200	200	200	8	12	50.5	64.3
HW250×250	250	250	9	14	72.4	92.2
HW300×300	300	300	10	15	94.0	119.7
HW400×400	400	400	13	21	172.6	219.8
HW500×500	500	500	15	23	239.0	304.5
HW600×600	600	600	17	26	319.0	406.4
Chinese Standard HM Medium-Flange H-Beam
HM150×100	150	100	6	9	20.4	26.0
HM200×150	200	150	6.5	9	31.2	39.8
HM250×175	250	175	7	11	44.1	56.0
HM300×200	300	200	8	12	57.3	73.0
HM350×250	350	250	9	14	79.7	101.3
HM400×300	400	300	10	16	104.0	132.6
HM450×300	450	300	11	18	121.0	154.4
HM500×300	500	300	12	20	138.0	176.0
Chinese Standard HN Narrow-Flange H-Beam
HN100×50	100	50	4.5	7	9.54	12.2
HN150×75	150	75	5	7	14.3	18.3
HN200×100	200	100	5.5	8	20.9	26.7
HN250×125	250	125	6	9	29.0	36.9
HN300×150	300	150	6.5	9	37.3	47.5
HN350×175	350	175	7	11	50.0	63.7
HN400×200	400	200	8	13	66.0	84.1
HN450×200	450	200	9	14	76.5	97.4
HN500×200	500	200	10	16	89.6	114.2
HN600×200	600	200	11	17	106.0	135.2
HN700×300	700	300	13	24	185.0	235.5
HN800×300	800	300	14	26	210.0	267.4
HN900×300	900	300	16	28	243.0	309.1
HN1000×300	1000	300	18	30	277.0	352.2
European Standard HEB Wide-Flange Heavy H-Beam
HEB100	100	100	6	10	20.4	26.0
HEB120	120	120	6.5	11	26.7	34.0
HEB140	140	140	7	12	33.7	43.0
HEB160	160	160	8	13	42.6	54.3
HEB180	180	180	8.5	14	51.6	65.7
HEB200	200	200	9	15	61.3	78.1
HEB220	220	220	9.5	16	71.5	91.2
HEB240	240	240	10	17	83.1	106.0
HEB260	260	260	10.5	17.5	93.0	118.4
HEB280	280	280	11	18	103.0	131.4
European Standard HEA Wide-Flange Light H-Beam
HEA100	100	96	5	8	16.7	21.3
HEA120	120	114	5	8	20.4	26.0
HEA140	140	133	5.5	8.5	24.7	31.5
HEA160	160	152	6	9	29.9	38.1
HEA180	180	171	6	9.5	35.5	45.2
HEA200	200	190	6.5	10	42.3	53.9
European Standard IPE Narrow-Flange I-Beam
IPE80	80	46	3.8	5.2	6.0	7.6
IPE100	100	55	4.1	5.7	8.1	10.3
IPE120	120	64	4.4	6.3	10.4	13.2
IPE140	140	73	4.7	6.9	12.9	16.4
IPE160	160	82	5	7.4	15.8	20.1
IPE180	180	91	5.3	8	18.8	23.9
IPE200	200	100	5.6	8.5	22.4	28.5
IPE220	220	110	5.9	9.2	26.2	33.4
IPE240	240	120	6.2	9.8	30.7	39.1
IPE270	270	135	6.6	10.2	36.1	45.9
IPE300	300	150	7.1	10.7	42.2	53.7
Japanese Standard H-Beam
H100×50	100	50	4.5	7	9.5	12.2
H150×75	150	75	5	7	14.3	18.3
H200×100	200	100	5.5	8	20.9	26.7
H300×150	300	150	6.5	9	37.3	47.5
H400×200	400	200	8	13	66.0	84.1
H500×250	500	250	9	14	89.0	113.4
H600×300	600	300	12	17	118.0	150.1
H700×300	700	300	13	24	185.0	235.5

Product Comparison Table

Grade Group	Chinese GB Grade	American ASTM Grade	European EN Grade	Japanese JIS Grade	Core Performance Feature	Typical Application Scenario
Medium Strength Structural	Q355B	A572 Gr.50, A992	S355JR	SM490A/B	High yield strength, good impact toughness at room temperature	High-rise building frames, bridge components, heavy-load supports

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FAQs

What steel grades is Q355B H-Beam equivalent to?

Q355B H-Beam is equivalent to ASTM A572 Gr.50, A992, EN S355JR and JIS SM490A/B medium strength structural steel.

What is the main application of Q355B H beam?

It is commonly used for high-rise building frames, bridge components, heavy load supports and industrial main structures.

Does Q355B H-Beam support custom cutting?

Yes, we can cut H-beams to your required length and provide additional processing like drilling.

What is the impact test condition of Q355B?

Q355B requires Charpy V-notch impact test at 20℃ room temperature. For low-temperature projects, you can select Q355NL grade.

Can you provide mill test certificate (MTC)?

Yes, full MTC will be supplied together with shipment for quality traceability.

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Q355B H-Beam | Medium Strength Structural H Beam, A572 Gr.50 A992 S355JR SM490A/B Equivalent