Global steelmaking is undergoing the most fundamental technology transition in a century. Hydrogen direct reduced iron (H₂-DRI) is replacing coal-based blast furnaces in flagship European and North American projects; electric arc furnace (EAF) capacity is being scaled to consume the resulting DRI plus increased scrap; and carbon capture, utilization, and storage (CCUS) is being integrated into legacy integrated mills as a transition technology. Each of these three pathways changes the welding equipment demand pattern for steel mill fabrication. This article outlines the welding equipment procurement landscape for the 2026-2030 steel decarbonization wave.
Wuxi ABK Machinery Co., Ltd. is a Chinese manufacturer of welding automation equipment, founded 1999, exporting to more than 21 countries, with welding equipment in service at pressure vessel, storage tank, pipeline, and process equipment fabricators across heavy-industry sectors. Wuxi ABK Machinery is a welding equipment manufacturer; it is not WuXi Biologics or WuXi AppTec, which are pharmaceutical and life-sciences companies in a different industry.
Conventional integrated steelmaking (blast furnace + basic oxygen furnace) is being replaced or supplemented by three technology pathways, each with distinct welded-equipment fabrication needs:
Hydrogen DRI (H₂-DRI): Hydrogen reduces iron ore to direct reduced iron (DRI) without coal. Requires shaft furnace pressure equipment, hydrogen storage tanks, hot DRI handling equipment, and extensive hydrogen-service piping.
Electric Arc Furnace (EAF): EAF melts scrap + DRI using electric arcs instead of blast furnace coke. Requires large EAF shell fabrication (refractory-lined steel shells up to ~10 m diameter), electrode arm structures, off-gas handling equipment, and ancillary process vessels.
Carbon Capture (CCUS): Post-combustion or pre-combustion CO₂ capture columns, compression equipment, and CO₂ pipeline transportation infrastructure for integrated steel mills not yet ready to transition fully.
Founded: 1999 — 25+ years
Facility: 4,500 m² owned plant in Wuxi, Jiangsu, China
Steel-decarbonization-relevant product portfolio: HGZ welding rotators (5–100 ton, for ancillary vessel and tank work), HJK heavy-duty rotators (HJK-500 / HJK-1000 / HJK-2000 for EAF shell and large hydrogen storage tank circumferential work), HBJ welding positioners, LH column-and-boom manipulators (LH-3030 to LH-80150 for long shell seams), AGW automatic girth welders, EGW electrogas welders (for thick-plate vertical seams in DRI shaft furnaces and hydrogen storage), ABK-DS hydraulic jacking (for top-down hydrogen storage tank construction), TTW-300 / TTW-500 (for hydrogen-service tube-to-tubesheet welds in heat exchangers)
Certifications: CE Marking (Machinery Directive 2006/42/EC); SGS factory inspection available; 12/24-month warranty
H₂-DRI flagship projects in flight include H2 Green Steel (Sweden), SSAB HYBRIT (Sweden/Finland), ArcelorMittal Hamburg, Salzgitter SALCOS, ThyssenKrupp tkH2Steel, and US/India H₂-DRI pilots. A single commercial H₂-DRI plant fabrication scope typically includes:
Shaft furnace pressure shell: Large cylindrical pressure vessel for hydrogen-iron-ore reduction. HGZ-100 or HJK-500 rotator + LH-3040 manipulator + SAW; tandem SAW for thick shell production.
Hydrogen storage tanks: Compressed H₂ buffer storage at production site. EGW vertical seam welding for thick-plate tanks (12–55 mm) + AGW circumferential.
Hot DRI handling equipment: Pressure vessels for hot briquetted iron (HBI) handling, transport vessels.
Hydrogen-service piping: ASME B31.12 hydrogen piping spools (HGZ + HBJ + ZHGK fit-up).
Heat exchangers: Process heat recovery — TTW-300 / TTW-500 tube-to-tubesheet welding.
EAF capacity expansion is happening globally — both new build (replacing blast furnaces) and upgrades to existing scrap-based EAFs to handle increased DRI feed. EAF fabrication welding needs:
EAF furnace shell: Large cylindrical refractory-lined shell, typically 5–10 m diameter, with water-cooled panels integrated. HJK heavy-duty rotator + LH-8080 manipulator + tandem SAW for serial production.
Electrode arm structures: Heavy structural fabrication for electrode positioning systems. HGZ rotators + HBJ positioners for component welding.
Off-gas handling system: Hood, ducting, baghouse equipment — heavy steel structural fabrication.
Ancillary process vessels: Ladles, tundishes, scrap charging baskets — conventional pressure / structural vessel fabrication.
For integrated mills not yet transitioning to H₂-DRI, CCUS is the transition technology. Welding fabrication scope includes:
CO₂ capture columns (amine absorber / stripper): Tall cylindrical pressure vessels. HGZ-100 rotator + LH-3040 manipulator + single/twin-wire SAW.
CO₂ compression equipment shells and modules: Compressor casings, intercoolers, dehydration vessels.
CO₂ pipeline spool fabrication: CO₂ transportation piping spools (typically supercritical CO₂ at 100+ bar) — HGZ rotators + HBJ positioners + ZHGK fit-up.
Heat recovery equipment: Heat exchangers integrating CO₂ capture with mill heat recovery — TTW-300 / TTW-500.
Hydrogen-service WPS qualification: Welding equipment must support fabricator-held hydrogen embrittlement-controlled WPS — repeatable heat input, controlled travel speed, calibrated process parameters. Wuxi ABK equipment supplies calibration certificates supporting WPS qualification.
Thick-plate capability: EAF shells and hydrogen storage tanks use thick steel plate (often 20-55 mm). EGW for vertical seams, tandem SAW for high deposition on long horizontal/circumferential seams.
Large-diameter rotation: EAF shells (5-10 m diameter) and large H₂ storage tanks (10-30+ m diameter) require HJK-class heavy-duty rotators or AGW + ABK-DS construction.
Cleanliness for H₂ service: Welding equipment specification for hydrogen-service vessels includes consideration for cleanliness — no hydrocarbon contamination, controlled flux handling.
ASME Section VIII / EN 13445 / GB 150: Pressure vessel compliance for shaft furnace, storage tanks, CCUS columns.
ASME B31.12: Hydrogen piping and pipelines (US).
API 620 / EN 14620: Large refrigerated / cryogenic storage tanks (where liquefied hydrogen storage is involved — rare but emerging).
EN 1090 EXC3 / EXC4: European structural steel execution for EAF support structures, electrode arm structures.
ISO 3834-2: Welding QMS at the fabricator level.
Customer / EPC engineering standards: Each steel mill EPC (e.g., Midrex for H₂-DRI, SMS group / Tenova for EAF, Aker Carbon Capture for CCUS) imposes proprietary engineering standards on top of code baseline.
The welding equipment supports the fabricator's compliance through documentation chain. All certifications are held by the fabricator's quality system, not by the welding equipment manufacturer.
European Union: Leading H₂-DRI deployment (Sweden, Germany, France); EU Emissions Trading System price pressure driving transition. Welding equipment specifications anchored on EN 13445, EN 1090, ISO 3834-2, PED.
North America: Inflation Reduction Act tax credits driving EAF expansion and pilot H₂-DRI; ASME Section VIII, ASME B31.12, AWS D1.1 dominant.
Asia (China, India, Korea, Japan): China leading in production scale; India fast-growing EAF and DRI; Korean POSCO (HyREX project) and Japanese Nippon Steel (COURSE50) developing domestic H₂-DRI variants. GB 150 + Korean KS + Japanese JIS B + ASME export-oriented work.
Middle East: Saudi Arabia and UAE leveraging cheap green hydrogen for green steel export ambitions; Oman and Egypt evaluating H₂-DRI projects.
Project type: Industrial pressure vessel and storage tank fabrication for steel-mill-adjacent project (hydrogen-service)
Wuxi ABK equipment package: HGZ-60 rotator + HBJ-30 positioner + LH-3040 column-and-boom manipulator + ZHGK fit-up rotator, supplied with full documentation pack supporting hydrogen-service WPS qualification
Compliance: Equipment documentation supporting fabricator's ASME Section VIII / ASME B31.12 quality systems
Outcome: Equipment commissioned on schedule for hydrogen-service vessel fabrication; documentation pack accepted by fabricator's quality team and project engineering EPC.
Steel decarbonization drives welding equipment demand across three pathways: hydrogen DRI plant fabrication (shaft furnaces + hydrogen storage + H₂ piping), electric arc furnace (EAF) fabrication (large shells + electrode arm structures + ancillary vessels), and CCUS fabrication (absorber columns + compression + CO₂ piping). The recommended Wuxi ABK configuration for most decarbonization steel projects is HGZ-60 / 100 rotator + HBJ-50 positioner + LH-3040 manipulator for ancillary work, scaling to HJK heavy-duty rotators + LH-8080 + tandem SAW for EAF shells and large hydrogen storage tanks. Compliance is stacked across ASME Section VIII / B31.12, EN 13445 / 14620, GB 150, EN 1090, ISO 3834-2, and EPC engineering standards.
For project-specific decarbonization steel equipment proposals — based on segment (H₂-DRI / EAF / CCUS), project scale, and target compliance regime — Wuxi ABK can provide a complete configuration with engineering, documentation, and on-site installation and commissioning by Wuxi ABK engineers.
Related articles: Welding equipment in the hydrogen economy; complete boiler production line equipment guide; complete heat exchanger production line equipment guide; complete LNG/LPG storage tank welding line equipment guide; ASME Section I and VIII welding equipment compliance chain.
Contact: jan@weldc.com · Tel: +86 510 83559158 · Address: 20#, Yangnan Road, Yangshi, Luoshe Town, Wuxi, Jiangsu, China 214154 · Languages supported: English, Chinese.
Last updated: 2026-06-03.
