ASTM A572 Grade 50 Hot Rolled I‑Beam S‑Shape High Strength Structural Steel I‑Beam

Short Description:

ASTM A572 Grade 50 hot rolled S-shape I-beam featuring high strength, excellent weldability, and reliable load-bearing performance. Ideal for steel buildings, bridges, warehouses, industrial structures, platforms, and heavy-duty construction projects, with customized sizes and lengths available.

Place of Origin:: China

Dimensions: S 3 x 5.7 - S 24 x 121

Length: Stock for 6 m & 12 m, Customized Length

Delivery Time: 7-15 working days

Payment Term: T/T,Western Union

Quality Certification: SGS/BV/ISO 9001

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Product Detail

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Product Overview

ASTM A572 Grade 50 I-Beam is a hot rolled structural steel beam for high strength applications and is ideal for the most demanding construction and engineering requirements. The S-shape American Standard beam offers a consistent load bearing and structural stability.

It is widely used in steel buildings, bridges, warehouses, industrial structures, platforms, and heavy-duty construction projects. Customized sizes, lengths, cutting, drilling, and fabrication services are available according to customer requirements.

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Product Introduction

Item	Specification
Product Name	ASTM A572 Grade 50 Steel I-Beam
Standard	ASTM A572
Grade	Grade 50
Shape	S-Shape / American Standard I-Beam
Manufacturing Process	Hot Rolled
Material	High Strength Structural Steel
Surface	Black / Mill Finish
Length	Standard or Customized
Processing	Cutting, Drilling, Welding
Inspection	Mill Inspection / Third-Party Inspection
Certificate	MTC Available

Chemical Composition & Mechanical Properties

Chemical Composition

Item	C	Mn	P	S	Si	V	Cb/Nb	Ni	Cr	Mo	Cu
A572 Gr.50	≤0.23%	≤1.35%	≤0.040%	≤0.050%	≤0.40%	≤0.15%	≤0.05%	—	—	—	—

Mechanical Properties

Item	Yield Strength	Tensile Strength	Elongation (200 mm)	Elongation (50 mm)	Yield-to-Tensile Ratio	Modulus of Elasticity
A572 Gr.50	≥345 MPa (50 ksi)	450–620 MPa (65–90 ksi)	≥18%	≥21%	—	Approx. 200 GPa

Note: Specific chemical composition and mechanical property requirements for ASTM A572 Grade 50 may vary depending on product thickness, product form, and applicable specification requirements. The official Mill Test Certificate (MTC) should be based on the actual heat/batch test results.

ASTM I Beam Size

Designation	Dimensions					Static Parameters
Designation	Dimensions					Moment of Inertia		Elastic Section Modulus
Imperial *(in x lb/ft)*	Depth *- h -* *(in)*	Width *- w -* *(in)*	Web Thickness *- s -* *(in)*	Sectional Area *(in²)*	Weight *(lb_f/ft)*	I_x(in⁴)	I_y(in⁴)	S_x(in³)	S_y(in³)
S 24 x 121	24.5	8.050	0.800	35.6	121	3160	83.3	258	20.7
S 24×106	24.5	7.780	0.620	31.2	106	2940	77.1	240	19.6
S 24×100	24	7.425	0.745	29.3	100	2390	47.7	199	13.2
S 24 x 90	24	7.125	0.625	26.5	90	2250	44.9	187	12.6
S 24 x 80	24	7.000	0.500	23.5	80	2100	42.2	175	12.1

S 20 x 96	20.3	7.200	0.800	28.2	96	1670	50.2	165	13.9
S 20 x 86	20.3	7.060	0.660	25.3	86	1580	46.8	155	13.3
S 20 x 75	20	6.385	0.635	22.0	75	1280	29.8	128	9.32
S 20 x 66	20	6.255	0.505	19.4	66	1190	27.7	119	8.85

S 18 x 70	18	6.251	0.711	20.6	70	926	24.1	103	7.72
S 18 x 54.7	18	6.001	0.461	16.1	54.7	804	20.8	89.4	6.94

S 15 x 50	15	5.640	0.550	14.7	50	486	15.7	64.8	5.57
S 15 x 42.9	15	5.501	0.411	12.6	42.9	447	14.4	59.6	5.23

S 12 x 50	12	5.477	0.687	14.7	50	305	15.7	50.8	5.74
S 12 x 40.8	12	5.252	0.462	12.0	40.8	272	13.6	45.4	5.16
S 12 x 35	12	5.078	0.428	10.3	35	229	9.87	38.2	3.89
S 12 x 31.8	12	5.000	0.350	9.35	31.8	218	9.36	36.4	3.74

S 10 x 35	10	4.944	0.594	10.3	35	147	8.36	29.4	3.38
S 10 x 25.4	10	4.661	0.311	7.46	25.4	124	6.79	24.7	2.91

S 8 x 23	8	4.171	0.441	6.77	23	64.9	4.31	16.2	2.07
S 8 x 18.4	8	4.001	0.271	5.41	18.4	57.6	3.73	14.4	1.86

S 7 x 20	7	3.860	0.450	5.88	20	42.4	3.17	12.1	1.64
S 7 x 15.3	7	3.662	0.252	4.5	15.3	36.7	2.64	10.5	1.44

S 6 x 17.25	6	3.565	0.465	5.07	17.25	26.3	2.31	8.77	1.30
S 6 x 12.5	6	3.332	0.232	3.67	12.5	22.1	1.82	7.37	1.09

S 5 x 14.75	5	3.284	0.494	4.34	14.75	15.2	1.67	6.09	1.01
S 5×10	5	3.004	0.214	2.94	10	12.3	1.22	4.92	0.81

S 4 x 9.5	4	2.796	0.326	2.79	9.5	6.79	0.903	3.39	0.65
S 4 x 7.7	4	2.663	0.193	2.26	7.7	6.08	0.764	3.04	0.57

S 3 x 7.5	3	2.509	0.349	2.21	7.5	2.93	0.586	1.95	0.47
S 3 x 5.7	3	2.330	0.170	1.67	5.7	2.52	0.455	1.68	0.39

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Mill Test Certificate

Each shipment can be supplied with a Mill Test Certificate (MTC) containing relevant material information, such as:

1.Heat number

2.Steel grade

3.Chemical composition

4.Tensile strength

5.Yield strength

6.Elongation

7.Product dimensions

8.Inspection results

Third-party inspection services such as SGS, BV, or other recognized inspection agencies can also be arranged according to customer requirements.

Surface Finish

Hot Rolled Black:Standard state

Hot-dip galvanizing: ≥85μm (compliant with ASTM A123), salt spray test ≥500h

Coating: Liquid paint was evenly sprayed onto the surface of the steel beam using a pneumatic spray gun.

Quality Control

Quality control is carried out throughout the production and supply process, including raw material inspection, dimensional inspection, mechanical testing, surface inspection, packaging, and shipment.

Mill Test Certificates (MTC) can be supplied to provide material traceability and verify chemical composition and mechanical properties.

Third-party inspection services such as SGS, BV, or other recognized inspection agencies can also be arranged according to customer requirements.

Processing Services

Royal Steel Group can provide value-added processing according to customer drawings and project requirements:

1.Cut-to-length

2.Drilling

3.Hole making

4.Welding

5.Surface treatment

6.Shot blasting

7.Painting

8.Galvanizing

9.Customized steel fabrication

These services help customers reduce additional processing work after delivery.

Main Application

Steel Buildings – Main beams, columns, structural frames, and roof structures.

Industrial Warehouses – Heavy-duty frames, platforms, and support structures.

Bridges – Bridge beams, structural members, and infrastructure components.

Factories & Workshops – Building frames, equipment supports, and mezzanine structures.

Royal Steel Group Advantage（Why Royal Group Stands Out for Golbal Clients?）

ASTM A572 Grade 50 Quality – High-strength structural steel with a minimum yield strength of 345 MPa (50 ksi).

Reliable Quality Control – Strict inspection of chemical composition, mechanical properties, dimensions, and surface quality.

MTC Available – Mill Test Certificate can be provided for material traceability and quality verification.

Customized Processing – Cutting, drilling, hole making, welding, painting, and other fabrication services are available.

Flexible Specifications – Standard and customized sizes, lengths, and surface treatments to meet different project requirements.

Global Export Experience – Professional packaging, shipping, documentation, and international steel supply services for customers worldwide.

Packaging and Shipping

I-beams are securely bundled and protected for international transportation. Packaging methods can be adjusted according to beam size, order quantity, transportation method, and destination.

Available shipping options include container shipping, bulk vessel shipping, and other suitable international transportation solutions.

FAQ

Q1: What standard does this I-beam comply with?

A: The product is manufactured to ASTM A992 Grade 50 requirements.

Q2: Is an MTC available?

A: Yes. A Mill Test Certificate can be provided with the shipment.

Q3: Can you cut the beam to a customized length?

A: Yes. Cutting and other fabrication services can be provided according to project requirements.

Q4: Can third-party inspection be arranged?

A: Yes. SGS, BV, or other third-party inspections can be arranged upon request.

Q5: What are the main applications?

A: It is suitable for steel buildings, warehouses, industrial structures, bridges, platforms, commercial buildings, and heavy-duty structural projects.

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A572 Gr50 S‑beam