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Hot Rolled Steel for Pre-Engineered Buildings (PEB)

Raysteel supplies mill-certified hot rolled structural steel profiles, plates, and coils engineered for Pre-Engineered Building (PEB) primary frames, crane girders, and secondary structural components. We deliver materials compliant with ASTM A36, ASTM A572, and EN 10025 standards, complete with EN 10204 3.1 Mill Test Certificates and defined cross-section tolerances to support efficient fabrication fit-up.

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Product Categories for PEB Structures

Category	Available Form Factors & Sizes	Primary Manufacturing Standards	Typical Delivery Condition
Hot Rolled H-Beams & I-Beams	Depth: 100 mm - 900 mm; Flange Width: 50 mm - 400 mm	ASTM A6, EN 10034, JIS G3192	As-Rolled, Shot-Blasted (Sa 2.5), Shop Primed
Hot Rolled Coils & Heavy Plates	Thickness: 1.5 mm - 100 mm; Width: 1,000 mm - 3,000 mm	ASTM A572, EN 10025-2, JIS G3101	As-Rolled, Normalized, Pickled & Oiled (P&O)
Structural Hollow Sections (SHS/RHS)	Outer Dimension: 20 x 20 mm - 600 x 600 mm; Wall Thickness: 1.5 mm - 30 mm	ASTM A500, EN 10210, EN 10219	Black Bare, Varnish Coated, Hot-Dip Galvanized
Equal & Unequal Channels & Angles	Height/Leg: 50 mm - 400 mm; Thickness: 4 mm - 25 mm	ASTM A36, EN 10056, EN 10055	As-Rolled, Cut-to-Length

Technical Specifications & Geometric Tolerances

Parameter	Technical Specification
Section Depth & Width Tolerance	Complies with ASTM A6 / EN 10034 Class A limits
Flange Out-of-Squareness	Less than or equal to 1.5 mm for flange widths up to 200 mm; less than or equal to 2.0 mm for widths above 200 mm
Straightness (Camber & Sweep)	Maximum 1.0 mm per 1,000 mm of total section length
Plate Thickness Tolerance	EN 10029 Class B / ASTM A568 limits
Carbon Equivalent Value (CEV)	Maintained at less than or equal to 0.43% on standard grades to support weldability during Submerged Arc Welding (SAW) and Flux-Cored Arc Welding (FCAW)

Material Grades & Chemical Properties

Structural Steel Grades for Primary Frames
• ASTM A36 / A283 Grade C: Carbon structural steel for standard framing members, baseplates, and clip angles requiring reliable formability and weldability.
• ASTM A572 Grade 50 (345 MPa Yield): High-strength low-alloy (HSLA) columbium-vanadium steel. Helps optimize frame weight while maintaining structural load capacity for clear-span PEB rafters and columns.
• EN 10025-2 S235JR / S275JR: General structural carbon steel grades with minimum yield strengths of 235 MPa and 275 MPa respectively at room temperature.
• EN 10025-2 S355JR / S355J2 (+N): High-strength structural grade offering 355 MPa minimum yield strength. The J2 (+N) variant includes Charpy V-notch impact testing at -20 deg C and normalized rolling for cold-climate PEB projects.

High-Strength & Specialty Heavy Plate Grades
• ASTM A588 Grade A/B: Atmospheric corrosion-resistant weathering steel for unpainted structural frames exposed to ambient weather conditions.
• EN 10025-3 S355N / S460N: Normalized fine-grain structural steel for heavy crane girders subjected to dynamic fatigue loading.

Primary Steel Processing Capabilities

High-Speed Sawing & Beveling:

Band saw cutting up to 1000 mm section height with length tolerance of -0/+3 mm. Oxy-fuel beveling prepared for full penetration butt welds.

Plate Plasma & Oxy-Fuel Cutting:

Multi-head CNC flame cutting for thick gusset plates, stiffeners, and end-connection plates up to 120 mm thickness.

Shot Blasting & Shop Priming:

Automated centrifugal shot blasting to ISO 8501-1 Sa 2.5 cleanliness, followed by immediate application of weldable zinc-silicate or alkyd shop primer (15-25 micron dry film thickness).

Section Punching & Drilling:

Multi-spindle CNC drilling for structural bolt holes on flanges and webs.

Quality Assurance & Testing Procedures

Materials are tracked from the basic oxygen furnace (BOF) melt process to final bundling.
[Melt & Ladle Analysis] -> [Hot Rolling & Thermo-Mechanical Processing] -> [Surface & Dimensional Check] -> [Mechanical & Impact Lab Testing] -> [EN 10204 3.1 MTC Issued]

Verification Protocols
• Mill Test Certificate (MTC): Issued according to EN 10204 3.1 with complete heat chemistry (C, Mn, Si, P, S, Cr, Ni, Mo, V, CEV) and mechanical properties (Yield, Tensile, Elongation).
• Ultrasonic Testing (UT): Heavy plates (thickness >= 20 mm) inspected for internal laminations per ASTM A435 / ASTM A578 Level A or EN 10160 upon requirement.
• Charpy V-Notch Impact Testing: Verified at 0 deg C or -20 deg C based on specified project temperature ratings (JR, J0, J2 grades).
• Surface Quality Verification: Checked for scale inclusions, laps, seams, and surface cracks in accordance with EN 10163-2 Class A.

Target PEB Structural Applications

PEB Component Category	Applied Products & Recommended Steel Grades
Primary Frame Columns & Rafters	Built-up plate welded sections, hot-rolled H-beams; ASTM A572 Grade 50, S355JR, S355J2
Secondary Framing & Purlin Stock	Hot-rolled coils for cold-forming C/Z purlins; ASTM A36, S275JR, S355JR
Heavy Crane Runway Girders	Heavy structural I-beams, thick flanges and top plates; S355J2+N, ASTM A572 Grade 50, UT Grade A
Base Plates, Gussets & Stiffeners	CNC cut-to-size heavy structural plates; ASTM A36, S235JR, S355JR

Minimum Order Quantity (MOQ) & Lead Times

Standard In-Stock Profiles & Sizes:

MOQ starts from 2 metric tons per size/grade. Factory dispatch within 5-7 working days.

Custom Rolling Mill Batches:

MOQ 20-25 metric tons per profile or thickness heat. Production lead time: 20-30 calendar days.

Processed Orders (Cut, Shot-Blasted, Primed):

Dispatch within 10-15 working days.

Export Packaging & Ocean Logistics

Structural Profiles & Beams: Bundled with heavy-duty steel strapping, corner protectors on flange edges, and color-coded painted ends for grade identification.

Hot Rolled Coils: Wrapped in VCI anti-rust film, heavy plastic sheeting, and secured with outer steel circumferential and radial bands on solid wooden eye-vertical or eye-horizontal skids.

Plates & Cut Components: Stacked on fumigated ISPM-15 wooden pallets, strapped with steel banding, and wrapped in waterproof tarpaulins.

Marking: Weatherproof metal tags stamped with Heat Number, Grade, Dimensions, Bundle Number, and Purchase Order reference attached to every bundle.

FAQ

Q: Do you provide EN 10204 3.1 Mill Test Certificates with heat traceability?

A: Yes. Every shipment includes a factory EN 10204 3.1 certificate linking the delivered steel section or coil directly to its original heat number, ladle chemical analysis, and mechanical test results.

Q: Can you supply steel plates and coils with low Carbon Equivalent Value (CEV) for welding?

A: Yes. We control chemistry during steelmaking to maintain Carbon Equivalent Value (CEV) at or below 0.43% on standard structural thicknesses, supporting high-speed submerged arc welding (SAW) under standard welding procedures.

Q: What dimensional standards apply to your hot rolled H-beams and channels?

A: Our profiles are manufactured to international dimensional standards including ASTM A6/A6M, EN 10034, and JIS G3192, ensuring tight cross-section tolerances and controlled camber/sweep limits.

Q: Do you offer pre-treatment services such as shot blasting and shop priming?

A: Yes. We operate automated shot-blasting lines capable of cleaning section surfaces to Sa 2.5 cleanliness, followed by the application of 15-25 micron weldable zinc-silicate or epoxy shop primers prior to shipment.

Q: How do you protect long structural steel beams from bending or surface rust during ocean shipping?

A: Beams are bundled using steel bands with wood spacers to prevent metal-to-metal rubbing. For ocean transport, materials receive rust-inhibiting coatings or VCI plastic wrapping, and long members are supported with wood dunnage during vessel loading.

Q: What options are available for third-party quality inspection?

A: We accept third-party inspection agencies including SGS, TUV, Bureau Veritas (BV), and Intertek to conduct witness testing, dimensional audits, chemical re-verification, and container/vessel loading supervision at our port facilities.

Request a Technical Quote

Submit your bill of materials (BOM), structural profile list, or project specifications below. Our structural steel engineering team responds within 12 business hours.

Steel Grade & Standard: Required steel designation (e.g., S690QL, NM400, Q355B) and material specification standard.

Component Drawings: CAD files (.dxf, .step, or .pdf) indicating dimensions, tolerances, weld symbols, and machined surfaces.

Quantity & Delivery Schedule: Initial sample requirement, batch quantity, and target delivery timeframe.

Special Quality Requirements: Specific NDT inspection levels (e.g., UT Class, MPI 100%), impact testing temperature, or third-party inspection needs (SGS, BV, TUV).

Contact Heavy Machinery Engineering Team
Email: info@tjrsr.com | Phone / WhatsApp: +86 159 0023 5505
Technical inquiry response time: Within 24 business hours with preliminary engineering review.

As one of the most professional hot rolled steel manufacturers and suppliers in China, we also support customized service. Please feel free to wholesale cheap hot rolled steel in stock here from our factory. For price consultation, contact us.

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