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Name: Medium Steel Plate above 4mm to 20mm
Brand: ZSJH

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Medium Steel Plate above 4mm to 20mm for Connections and Platforms

Medium Steel Plate above 4mm to 20mm

Specification Overview

Item	Options and guidance
Thickness boundary	4
Example thicknesses	5, 6, 8, 10, 12, 14, 16, 18 and 20mm; subject to grade and sourcing
Supply form	Discrete hot rolled plate, suitable cut-to-length sheet or fabricated parts
Width and length	Confirm mill sizes, nesting and transport requirements
Theoretical area weight	10mm approx. 78.5kg/m²; 16mm approx. 125.6kg/m² for ordinary carbon steel
Tolerances	Material thickness/flatness and processed hole/profile tolerances are specified separately

Brand:
ZSJH


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Product Description

Match Each Plate to Its Connection or Platform

Connections, stiffeners and equipment-platform parts need the right grade, holes, flatness and corrosion protection as well as thickness. ZSJH Steel can coordinate material and drawing-based processing for your order.

This page covers nominal thicknesses 4<t≤20mm. Typical enquiries may include 10, 12 and 16mm. Suitability for a platform floor or structural flange plate depends on loads, supports and connection design.

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Product Benefits

· A practical thickness group for many connection and stiffener components.

· Carbon and low-alloy grades to discuss against strength and welding requirements.

· Holes, bevels and part identification can be included in the order scope.

· Cutting layout, part weight and finishing can be considered together.

Material and Execution Standards

Material options require confirmation by grade, thickness and delivery condition. Similar strength labels do not establish equivalence across standards.

Standard family	Example grades	Specification and selection
GB carbon steel	Q235B/C/D	GB/T 700; quality grade matched to service requirements
GB low-alloy steel	Q355B/C/D/E	GB/T 1591; confirm impact and delivery requirements
GB higher strength	Q390, Q420 and Q460 series	Applicable GB/T 1591 grades; substitution requires design approval
ASTM carbon steel	A36/A36M	General structural delivery requirements with A6/A6M
ASTM low-alloy steel	A572/A572M Grade 50	Confirm edition, product form and permitted thickness
EN non-alloy steel	S235JR; S275JR; S355JR/J0/J2	EN 10025-2 with the agreed delivery condition
EN fine-grain steel	S355N/NL; S355M/ML	EN 10025-3 or EN 10025-4; availability confirmed individually

Rolling and Delivery Conditions

Steel mills may produce discrete hot rolled plate or cut-to-length material from hot rolled coil where suitable. Check flatness, residual-stress expectations, testing and delivery requirements for the actual route.

Discuss as-rolled, normalized or normalizing-rolled supply as applicable. Thermomechanical rolling is an option for suitable specified grades, not an interchangeable treatment for every plate. Assess subsequent heat treatment for TMCP material. ZSJH coordinates sourcing and downstream fabrication rather than presenting mill rolling as its own process.

Dimensional and Inspection Requirements

GB supply may combine GB/T 3274 with GB/T 709. ASTM structural plate uses applicable A6/A6M requirements. EN mill plate may use EN 10029; suitable coil-derived products use EN 10051. Agree EN 10204 type 3.1 or other material documents where required. A dimensional standard does not replace a material specification.

Surface Options

Finish	Selection points
Mill finish or temporary protection	Plan cleaning and subsequent coating; temporary protection is not permanent corrosion control
Blasting and primer	Agree cleanliness, profile, compatible primer and film thickness
Epoxy with polyurethane topcoat	Match the system to humidity, indoor/outdoor exposure and maintenance
Hot-dip galvanizing after fabrication	Assess distortion, holes, welds and slip-critical surfaces; use ISO 1461 or ASTM A123/A123M where applicable

Choosing 10mm or 16mm

Determine loads, spans and supports first. A thicker plate also increases dead load and does not automatically permit fewer stiffeners or different bolts. Where drawings are incomplete, share operating conditions to discuss design and material coordination.

Processing and Delivery

Discuss CNC cutting, drilling, beveling, bending, welded assembly and finishing. Hole diameter, edge distance and bevel geometry follow approved drawings. Precision or close-tolerance holes require an appropriate machining route rather than an assumption that thermal cutting is sufficient.

Order route:

Order route

Frequently Asked Questions

Can Q355 replace A572 Grade 50? Compare chemistry, thickness-dependent properties, impact requirements, weldability and delivery condition, then obtain design approval.

Are all 16mm plates alike? No. Grade, thickness tolerance, delivery condition and inspection requirements differ.

Is thicker platform plate always safer? The complete platform needs design checks, including supports, connections, local loads and slip resistance.

Request Your Plate and Processing Quote

Send the grade and standard, thickness, dimensions or drawing, quantity, holes, bevels, finish, inspection requirements and destination.

Primary CTA: Get a Medium Plate Quote

Contact ZSJH Steel: sales@zsjhsteel.com | WhatsApp +86 151 2258 2058.

Supply note: Grade, dimensions, properties and processing require order confirmation. Weight examples and application descriptions do not replace design checks or material documents.