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Flat Steel & Hot Rolled Flat Steel / Cold Drawn Flat Steel，Q235B、Q355B、20#、45#

Negotiable MOQ: 5 Metric Tons (Price negotiable depending on order volume and customization)

Key Specifications

Business Type:

Manufacturer

Year Established:

2024

Factory Size:

3,000-5,000 square meters

Shandong Shoukun Metal Materials Co., Ltd.

1Yr

Payment & Shipping

Payment Methods:

Port of Shipment:

Qingdao port，Shanghai port，Tianjin port

Delivery Detail:

7 days

Product Overview

Product Definition: Flat Steel is solid long‑bar section steel with rectangular cross‑section, mainly divided into Hot Rolled Flat Steel andCold Drawn Flat Steel, widely used for steel structure and mechanical processing.
Production Process: Hot Rolled Flat Steel is integrally hot‑rolled from steel billet without shear stress and good straightness. Cold Drawn Flat Steel is finished by cold drawing process with high dimensional accuracy and smooth surface. Flat Steel can be directly used for components without secondary plate shearing.
Product Difference: Ordinary Flat Steel is suitable for welding and frame making; Hot Rolled Flat Steel features cost‑effective and full‑range sizes; Cold Drawn Flat Steel fits precision parts requiring tight tolerance and fine surface.
Processing Performance: Flat Steel supports cutting, punching, bending, hot‑dip galvanizing, painting. Hot Rolled Flat Steel fits outdoor projects, andCold Drawn Flat Steel can be directly assembled.
Application Feature: Flat Steel has stable supply and complete specifications. Hot Rolled Flat Steel and Cold Drawn Flat Steel are widely applied in steel‑structure, machinery manufacturing, power grounding, guardrail brackets and other projects.

Advantages

Regular cross‑section & high material utilization: Flat Steel owns solid rectangular cross‑section with clear edges to reduce cutting waste.Hot Rolled Flat Steel is integrally rolled without shear stress, anti‑distortion for stable components.
Excellent welding & machinability: Flat Steel has uniform material for good welding, cutting and bending performance. Hot Rolled Flat Steel fits on‑site prefabrication; Cold Drawn Flat Steel reduces machining work due to high precision.
Stable mechanical property: Flat Steel balances tensile strength and toughness with controlled carbon equivalent. Hot Rolled Flat Steel meets general heavy‑load structure; Cold Drawn Flat Steel gets higher strength by cold hardening with good torsion‑resistance and fatigue‑resistance.
Complete specifications & flexible customization: Flat Steel covers wide width & thickness range with abundant stock for standard sizes. Hot Rolled Flat Steel supplies large thick sizes; Cold Drawn Flat Steel provides small precise dimensions for non‑standard order.
Diversified surface treatment: Flat Steel can be delivered in black hot‑rolled finish, also pickled, polished or hot‑dip galvanized. Hot Rolled Flat Steel for outdoor grounding & guardrail; bright‑surface Cold Drawn Flat Steel for direct assembly.

Material & Specifications

Material Grade: Q235B, Q355B, 20#, 45#; export grades A36, SS400, S235JR, S355JR, qualified for Flat Steel production.
Width Range:12‑300mm, popular size:20/30/40/50/60/80/100mm, customized non‑standard width for Hot Rolled Flat Steel.
Thickness Range:3‑60mm, common thickness 4‑30mm; Cold Drawn Flat Steel supports thin precise sizes upon request.
Standard Length:6m,9m,12m, custom cut‑length 2‑12m available for Flat Steel.
Delivery Condition:Hot Rolled Flat Steel in black hot‑rolled finish with normal mill scale; Cold Drawn Flat Steel bright cold‑drawn finish, scale‑free with sharp clean edges.
Tolerance: Hot Rolled Flat Steel complies with GB/T704; Cold Drawn Flat Steel with high precision tolerance, good straightness and slight camber to reduce correction work.

Standards

Domestic Standard: GB/T 704‑2016 Hot‑rolled flat steel; GB/T 3078‑2014 Cold‑drawn flat steel; GB/T1591 for low‑alloy grade. All Flat Steel produced and inspected as per national standard.
International Standard: ASTM A36, EN10058, JIS G3101. Export‑oriented Hot Rolled Flat Steel and Cold Drawn Flat Steel satisfy import inspection of multiple countries.

Application

Steel‑structure Project: Supports, base frames, guardrails, stair parts, embedded parts, widely adopt Flat Steel and Hot Rolled Flat Steel.
Machinery Manufacturing: Machine base, equipment frames and precision components select Cold Drawn Flat Steel to save machining cost.
Power & Municipal Engineering: Lightning protection grounding, cable tray supports, pipe supports, hot‑dip galvanized Flat Steel is widely used.
General Processing: Hardware accessories, agricultural components, container spare‑parts, welding prefabricated parts can choose Hot Rolled Flat Steel andCold Drawn Flat Steel for reliable quality.

Packing & Delivery

Packing: Bundled with steel straps, each bundle labeled with grade, size and heat number. Export reinforced packing with clear shipping marks to avoid bump damage for Flat Steel.
MOQ:5‑10 Metric Tons, support bulk purchase and custom cutting.
Lead Time:3‑7 days for stockHot Rolled Flat Steel;12‑20 working days for special‑grade, high‑precision Cold Drawn Flat Steel and non‑standard sizes.
Loading Port:Qingdao, Tianjin, Lianyungang.
Inspection: Tensile test, bend test, dimension & visual inspection for every batch of Flat Steel. Extra precision & surface check for Cold Drawn Flat Steel. Mill test certificate, SGS / CE third‑party reports are available.