High Strength ASTM A36 W4x13 Steel I-Beam Carbon Steel Wide Flange Beam

Short Description:

Steel I-beam also knows as I-section steel or Universal Beam is one of the most popular and widely used structural steel profile with “I”-shaped cross-section. Due to its great load bearing ability, high strength to weight ratio and geometric stability, I-beams are a staple material in construction and engineering applications globally.

Place of Origin:: China

Brand Name:: Royal Steel Group

Model Number:: RY-H2510

Material Standard: ASTM

Grade: A36

Dimensions: W8×21 to W24×104 (inches)

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

Delivery Time: 10-25 working days

Payment Term: T/T,Western Union

Quality Certification: EN 10204 3.1 material certification & SGS/BV third-party testing report (tensile and bending tests)

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Product Detail

Product Tags

Product Introduction

Property	Specification / Details
Material Standard	ASTM A36 (general structural)
Yield Strength	≥250 MPa (36 ksi); Tensile Strength ≥420 MPa
Dimensions	W8×21 to W24×104 (inches)
Length	Stock: 6 m & 12 m; Customized lengths available
Dimensional Tolerance	Conforms to GB/T 11263 or ASTM A6
Quality Certification	EN 10204 3.1; SGS/BV third-party testing (tensile & bending)
Surface Finish	Hot-dip galvanizing, paint, etc.; customizable
Applications	Buildings, bridges, industrial structures, marine & transportation
Carbon Equivalent (Ceq)	≤0.45% (ensures good weldability); AWS D1.1 welding code compatible
Surface Quality	No visible cracks, scars, or folds; flatness ≤2 mm/m; edge perpendicularity ≤1°

Mechanical property

Property	Specification	Simplified Description
Yield Strength	≥250 MPa (36 ksi)	Stress level at which permanent deformation begins
Tensile Strength	400–550 MPa (58–80 ksi)	Maximum tensile stress before fracture
Elongation	≥20%	Ductility measured over 200 mm gauge length
Hardness (Brinell)	119–159 HB	Reference value for material hardness
Carbon (C)	≤0.26%	Influences strength and weldability
Manganese (Mn)	0.60–1.20%	Improves strength and toughness
Sulfur (S)	≤0.05%	Controlled to maintain toughness
Phosphorus (P)	≤0.04%	Limited to enhance toughness
Silicon (Si)	≤0.40%	Increases strength and supports deoxidation

Size

Shape	Depth (in)	Flange Width (in)	Web Thickness (in)	Flange Thickness (in)	Weight (lb/ft)
W4×13	4.16	4.06	0.28	0.345	13
W8×21 (Sizes Available)	8.06	8.03	0.23	0.36	21
W8×24	8.06	8.03	0.26	0.44	24
W10×26	10.02	6.75	0.23	0.38	26
W10×30	10.05	6.75	0.28	0.44	30
W12×35	12.00	8.00	0.26	0.44	35
W12×40	12.00	8.00	0.30	0.50	40
W14×43	14.02	10.02	0.26	0.44	43
W14×48	14.02	10.03	0.30	0.50	48
W16×50	16.00	10.03	0.28	0.50	50
W16×57	16.00	10.03	0.30	0.56	57
W18×60	18.00	11.02	0.30	0.56	60
W18×64	18.00	11.03	0.32	0.62	64
W21×68	21.00	12.00	0.30	0.62	68
W21×76	21.00	12.00	0.34	0.69	76
W24×84	24.00	12.00	0.34	0.75	84
W24×104 (Sizes Available)	24.00	12.00	0.40	0.88	104

Size and Tolerance Comparison Table

Parameter	Typical Range	ASTM A6/A6M Tolerance	Simplified Notes
Depth (H)	100–600 mm (4"–24")	±3 mm (±1/8")	Within nominal size limits
Flange Width (B)	100–250 mm (4"–10")	±3 mm (±1/8")	Consistent width for load stability
Web Thickness (tₙ)	4–13 mm	±10% or ±1 mm (greater value)	Influences shear strength
Flange Thickness (t_f)	6–20 mm	±10% or ±1 mm (greater value)	Key factor for bending capacity
Length (L)	6–12 m standard; up to 18 m custom	+50 / 0 mm	No negative tolerance
Straightness	—	L / 1000	Limits beam camber
Flange Squareness	—	≤4% of flange width	Ensures fit and alignment
Twist	—	≤4 mm/m	Controls torsional deviation

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.

Customized Content

Customization Category	Options	Description	MOQ	Typical Lead Time	Inspection
Dimension	H, B, tₙ, t_f, L	Standard or custom sizes; cut-to-length	20 tons	7–15 days	Dimensional check, length tolerance
Surface Treatment	Black, blasting, oil, painting/epoxy, galvanizing	Corrosion protection	20 tons	10–20 days	Surface condition, coating thickness
Processing	Drilling, cutting, beveling, welding, prefabrication	Fabrication per drawings	20 tons	15–30 days	Drawing conformity, welding quality
Marking & Packaging	Custom marking, bundling, end protection, waterproof packing	Export-ready packing	20 tons	3–7 days	Packing integrity, marking accuracy

Main Application

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Building Structures: Beams and columns for skyscrapers, factories, warehouses, and bridges, providing primary load-bearing support.

Bridge Engineering: Main or secondary beams for vehicular and pedestrian bridges.

astm-a992-a572-h-beam-application-royal-steel-group-4

Heavy Equipment & Industrial Support: Supports for large machinery and industrial platforms.

Structural Strengthening: Reinforcement or modification of existing structures to improve load-bearing and bending resistance.

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

1) Branch Office - Support in Spanish, help with customs procedures, etc.

2) Over 5,000 tons of stock in stock, with a wide variety of sizes

3)Reviewed by authoritative agencies such as CCIC, SGS, BV, and TUV, with normal seaworthy packaging.

Packing And Delivery

Packing

Safe delivery of I-Beams over a distance is important. Typical packing methods are:

Strapped with steel: I-beams are tightly packed and straps to hold them in place.

Wood Supports / Blocks: Between layers for stability and to prevent bending.

Protective End Caps: Beam ends are protected from damage while being handled.

Rust Prevention: Oiled or coated to protect against moisture and rust for ocean or long haul shipping.

Delivery

We provide flexible delivery solutions to suit various international and domestic logistics needs:

Port-to-port Shipment: Safe loading of container and securing for transport oversea.

Truck Transport: Normal delivery to local building site.

Project Based Logistics: Management of numerous beam sizes/lengths for sequential site installation.

Lead Time: I-Beam Standard I-Beams orders stocked in the warehouse can be made available in 7-15days, special sizes can be provided as well.

Americas Market Transportation Solution:I Beams of ASTM are mainly transported to the America by containerized sea freight and secured with steel strapping, end protection and optional anti-rust coating for the safe and efficient delivery.

FAQ

Q: What standards do your I-Beams meet for Central America?
A: Our I-Beams comply with ASTM A36 & A572 Grade 50, commonly used in Central America. We can also supply products meeting local standards, e.g., Mexico NOM.

Q: What is the delivery time to Panama?
A: Sea freight from Tianjin Port to Colon Free Trade Zone takes 28–32 days. Total production and delivery time is 45–60 days. Urgent shipments can be arranged.

Q: Do you assist with customs clearance?
A: Yes, our professional brokers handle customs declaration, taxes, and all documentation to ensure smooth delivery.

Q: What packing methods are used for I-Beams?
A: Beams are bundled with steel straps, protected with wooden blocks and end caps, and optionally oiled, painted, or wrapped for sea transport.