Baosteel Steel Supplier & Export Partner in China

Baoshan Iron & Steel Co., Ltd. — universally known as Baosteel — is a globally leading modernized integrated iron and steel company, and the flagship listed subsidiary of China Baowu Steel Group. Founded in February 2000 and listed on the Shanghai Stock Exchange in December of the same year (stock code: 600019), Baosteel ranks second in crude steel output, first in automotive sheet output and first in silicon steel output among the world's listed steel enterprises.

Baosteel's independently developed high-end products — the new generation high-strength automotive steel, oriented silicon steel, high-grade steel for household appliances, steel for energy and marine engineering, and bridge steel — have all reached the world's advanced level. Its marketing and processing network spans four overseas regional headquarters (Europe, America, Singapore and Japan), 25 marketing and sales outlets and 16 overseas laser welding factories. Baosteel is the world's third and China's first steel "Lighthouse Factory" in the World Economic Forum's network, and its one-million-tonne hydrogen-based shaft furnace in Zhanjiang completed the 168-hour test run in 2024.

Buyers specify Baosteel plate for three practical reasons. Consistent quality: tight thickness tolerance, low inclusion levels and stable mechanical properties batch after batch. Complete grade coverage: BS series high-strength steel from 600 to 1,300 MPa yield, NM series wear plate from 360 to 600 HB, plus beam, protection, pressure-vessel and rotor-yoke grades — almost everything a fabricator needs under one mill certificate system. Traceability: every plate ships with a mill test certificate (MTC) verifiable by heat number.

At Baohui Steel, around 90% of the plate we export is sourced from Baosteel, giving our customers mill-direct quality with export-grade service.

Baosteel produces its hot-rolled heat-treated plate on three dedicated lines at the Baoshan and Qingshan bases: a conventional heat-treatment line commissioned in 2014, an intensive continuous line commissioned in 2022, and the Qingshan base line with 200,000 tonnes of annual capacity. Together they quench and temper plate up to 1,800 MPa tensile / 1,500 MPa yield — the strength level behind the BS, NM and BST series described below.

The intensive continuous line — the only one of its kind in the world — performs heat treatment with the steel still in coil form. For thin-gauge heat-treated products below 5 mm, this delivers a significant cost advantage and consistently stable quality.

Because Baohui buys inside this system, our customers receive genuine Baosteel Q+T plate with the original mill certificate — not re-rolled or third-party reprocessed material.

Baosteel's hot-rolled heat-treated steel is produced on three lines with a combined capacity above 400,000 tonnes per year, covering gauges from 2.0 to 20.0 mm:

Maximum tensile strength reaches 1,800 MPa and maximum yield strength 1,500 MPa across these lines, with quenching, tempering and normalizing capability.

The BS series covers yield strength levels from 600 to 1,300 MPa. MC grades (BS600MC-BS700MC) are delivered in the TMCP as-rolled condition in gauges up to 20 mm; grades from BS800E upward are offline quenched and tempered (Q+T) in 2-20 mm. The suffix system is precise: D = -20 °C impact toughness, E = -40 °C impact toughness, HB = high cold-bendability, LR = low yield ratio.

Standard supply gauge: 2-20 mm × 900-2100 mm × 2000-15000 mm (TMCP MC grades from 1.5 mm). Welding guidance published by Baosteel: MC grades are weldable without preheat in most gauges; for Q+T grades, recommended minimum preheat ranges from 75 °C to 150 °C depending on grade and thickness, with heat input ≤ 8-15 kJ/cm.

Browse our high-strength structural steel category for the grades we export with FOB Shanghai pricing.

Baosteel's NM series heat-treated wear plate (1.5-25 mm) is engineered for dump truck bodies, hoppers, crusher liners, coal machinery and grab buckets — anywhere abrasive material eats through ordinary plate. In a documented field test, a dump truck floor in NM400 lost only 0.3 mm in three months of mining service, against 3 mm for Q345 structural steel — roughly ten times the service life.

Developed on Baosteel's thin-gauge heat-treatment lines, the NM series covers Brinell hardness levels from 360 to 600 HBW to GB/T 24186 — the standard family that maps one-to-one to international NM360-NM600 grades. The E suffix denotes the high-toughness version with -40 °C impact energy of 60 J.

Supply range: 1.5-25 mm — including the world's only 1.5 mm heat-treated wear plate — 900-2000 mm width, 4000-15000 mm length. For international comparison, Baosteel NM400/NM450/NM500 match HARDOX 400/450/500 in hardness class at a significantly lower cost per ton — see our NM400-NM500 series page and the AR500 vs HARDOX 500 vs NM500 analysis.

Beyond the BS and NM series, Baosteel's heat-treatment lines produce a full range of specialty plate families, all available through Baohui on request:

Engineers replacing a European or Japanese specification with a Baosteel grade can use this cross-reference. Mechanical properties are equivalent in class; always confirm the exact standard edition in the MTC before substitution.

Baosteel sells primarily to domestic end users and large contract buyers. For overseas fabricators, traders and equipment makers, Baohui bridges the gap between the mill and your port:

• Annual-agreement partner: Baohui is an annual-agreement partner of Baosteel for high-strength and wear-resistant steel, the largest spot retailer of Baosteel plate, and a strategic partner of Baosteel.
• Mill-direct sourcing: around 90% of our plate comes from Baosteel, with original MTCs issued by the mill.
• Export service: English-speaking sales engineers, export packaging, container and break-bulk loading, and full export documentation.
• Third-party verification: SGS, BV or TÜD inspection arranged before shipment on request.
• Competitive FOB pricing: export pricing typically well below equivalent European or Japanese brands; see live indications on our product pages.
• Processing support: cutting, bending, welding and drilling arranged in Shanghai before shipping.

Baohui Steel is an independent steel export company sourcing primarily from Baosteel. We are not a subsidiary or official sales agent of China Baowu Group; Baosteel and Baowu are trademarks of their respective owners.

About Baohui Steel — our company, warehouses and 26 years of steel trading history →

Every claim on this page is backed by published, verifiable material. These guides reproduce Baosteel's official handbook data, real mill certificate values and verified EPD figures:

Welding & fabrication guides (official Baosteel handbook data)

• Welding NM400 / NM500 wear plate — preheat rules, ≤12 kJ/cm heat input, filler selection and real joint tests (929–943 MPa).
• Welding BS960E — Ceq 0.52 / Pcm 0.28, heat input limits 8–12 kJ/cm, EN/AWS/BH filler table, joint tests at 962–1,032 MPa.
• The full Baosteel heat-treated program — NM / BS / BST / BP grade matrix, sizes and delivery states.

Data-driven brand comparisons (real mill certificates)

• Baosteel NM400 vs Hardox 400
• Baosteel NM500 vs Hardox 500
• Baosteel BS960E vs Strenx 960

Documentation & sustainability

• How to read a Baosteel mill test certificate, line by line
• Steel EPD explained — Baosteel's verified hot-rolled EPD data (2.28 t CO2e/t)
• Product pages: wear-resistant steel · high-strength structural steel · BS960E

Ready to source genuine Baosteel plate?

Send us the grade, thickness and quantity — we reply with an FOB Shanghai quote and mill certificate samples within 24 hours.