Knowledge
Ordering Q345R vessel plate: UT, heat treatment, mill certs
Vessel plate leaves no room for vague contracts — UT class and delivery condition belong in writing. A walk-through of the ordering flow.
Knowledge2026-09-08
Henan Depu Steel Co., Ltd. · SINCE 2004
Medium & Heavy Plate
Medium & Heavy Plate
Stock · Cutting · Export
Over 30,000 tonnes of plate in indoor stock, clean surfaces and full traceability. Mill-direct booking from Wuyang, Xianggang, Angang, Xingang and Nangang; send us a drawing and we cut — circles, flanges, blanks and shaped parts.
2004yrWhere it all began
30,000+tPlate held in stock
18,000t/yrCutting capacity
2,000+ clientsAcross many industries
Products
Nine plate families, organised by standard
From ambient-pressure vessels to -165°C cryogenic tanks, from excavator buckets to sea-crossing bridge girders — each family lists grades, thickness ranges and delivery conditions.
Boiler & Pressure Vessel Plate
GB/T713
Q245R · Q345R · 15CrMoR · 12Cr1MoVR
See specificationLow-Temperature Vessel Plate
GB/T3531
16MnDR · 09MnNiDR · 08Ni3DR · 06Ni9DR
See specificationWear-Resistant Plate
GB/T24186
NM360 · NM400 · NM450 · NM500 · MN13
See specificationHigh-Strength Plate
GB/T16270
Q460C · Q550D · Q690D · WQ series
See specificationLow-Alloy Structural Plate
GB/T1591
Q345B · Q355B · Q390D · Q420E
See specificationBridge Structural Plate
GB/T714
Q345qC · Q370qD · Q420qE
See specificationWeathering Steel
GB/T4171
Q355NH · Q415NH · Q450NQR1
See specificationShipbuilding & Offshore Steel
GB/T712
AH36 · DH36 · EH36 · Z grades
See specificationAlloy Structural Steel
GB/T3077
20CrMnTi · 30CrMnSiA · 42CrMo
See specification
18,000 tcutting capacity per year
Stock & Cutting
Stock is confidence, cutting is craft
Our warehouse is indoor — plate stays dry, surfaces stay clean, markings stay readable. Grades run from plain-carbon Q235B through quenched-and-tempered high-strength steels, and common sizes can load the same day.
- CNC flame, plasma and laser cutting — chosen by thickness and tolerance
- Circles, rings, flanges, squares, sectors and shaped parts, bevels on request
- Nesting drawings confirmed before the torch lights, utilisation agreed up front
Services
Four services, from mill to jobsite
Mill booking
Forward booking with Wuyang, Xianggang, Angang, Xingang, Nangang, Puyang, Shougang and more — special grades and oversized plates arranged with transparent lead times.
Cutting
Profile cutting is our daily bread: circles, rings, flanges, blanks and shaped parts, surface finish and tolerance agreed in advance, inspected before dispatch.
Export trading
Regular shipments of plates and coils to Korea, Vietnam, India, Japan, the Middle East, the EU and the US — with complete documentation.
Logistics
Trucking, containers and break-bulk coordinated; oversize permits and lifting plans arranged ahead of the truck leaving the yard.
Warehouse
Step inside the yard
Every plate is traceable: heat number, mill certificate and UT report travel together.
Knowledge
Know the plate before you order
The traps worth avoiding: which UT class to specify, how to read delivery conditions, how hot to preheat before welding.
Knowledge
Choosing NM400 wear plate: hardness, thickness, economics
Harder is not always better. Liners, buckets and scraper bars wear differently — match the grade to the wear mode.
Knowledge2026-09-02
Cutting
Plate cutting from drawing to shaped parts
Flame, plasma or laser? How bevels are specified? The key parameters of profiling, explained once and for all.
Cutting2026-08-25
News
Deliveries & market notes
Projects
Batch delivery record: wind-power project plate
Tower and monopile steels arrived in four batches — UT, Z-grades and impact values checked piece by piece.
Projects2026-09-15
Export
Export shipment: API 2H Gr.50 shaped pieces
80 mm offshore-platform steel cut to curved profiles and stuffed for sea, certificates in order.
Export2026-09-10
Market
September plate market notes
Peak season is real but modest: plate turnover recovering, prices oscillating as mills and buyers test each other.
Market2026-09-12
About
A promise with the strength of steel
Starting from a single storefront in 2004, we grew into a steel trading business that sells, books from mills, cuts and exports — because "what we promise, we deliver" turned out to be a durable business model.
Nearly 2,000 industrial clients have bought from us, many since their first machine. Big order or small, the rule has not changed in twenty years.
How we work →QC · EVERY PLATE GETS HANDS-ON CHECKS