鉄骨工 鉄骨工
What 鉄骨工 do
An English description is being prepared. Japanese description:
まず、コンピュータやCADを使って、設計図に基づいてNCデータ・原寸型板・材料リスト・製作図面などの資料を作成する（原寸作業）。鉄骨などの形状は毎回異なるため、設計図どおりに製作するためには原寸図面の作成が必須となる。
次に、厚鋼板や形鋼などの材料にボルト締めをする孔（あな）をあけ、切断した後、加工位置を示す罫（け）書き線を記入し、プレス機やローラーで曲げたりして部品を作る（素材加工）。加工した部品を一つ一つクレーンで吊って、溶接しながら組み立てる（溶接・組立）。
完成した製品は検査を行い、溶接部の内外に欠陥が無いこと、所定の寸法精度を確保していることを確認する。その後、建設現場に輸送し、現場でのボルト締めや溶接をとび工が行う。
工場ではコンピュータ制御による加工の自動化が進んでいるが、特に組立や矯正の作業などにはまだ経験と勘に頼る部分が残っている。
◇ よく使う道具、機材、情報技術等
コンピュータ、CAD、プレス機、ローラー、クレーン、工具（かなづち、のこぎり等の手動工具、ドリル等の電動工具）、作業中の保護具（ヘルメット、ゴーグル、グローブ、安全靴等）
Employment type of workers
鉄骨工 salary
The average annual pay for 鉄骨工 in Japan is ¥5.07M (≈ $32,219; Basic Survey on Wage Structure (2025), national). The estimated median is ¥4.71M, the typical range is ¥3.51M–¥8.56M and the top 10% earn about ¥7.40M.
How does your pay compare with people your age?
Your numbers are not sent or stored. The distribution is estimated from Japan's national wage statistics, including pay differences by age.
Pay by ageest.
Estimated from the average pay and average age (43.5) using the age-wage curve of the Basic Survey on Wage Structure.
Pay by experienceest.
Pay by employment typeest.
The average hourly wage of ¥2,258 is 1.9× Japan's national average minimum wage of ¥1,177 (fiscal 2026). Minimum wage by prefecture →
Japanese pay is shown in yen (¥5.57M = 5.57 million yen ≈ 557万円). Dollar figures use the current rate of 157.25 yen per dollar and are for reference only; purchasing power differs.
Pay over time
| Year | Average pay | Employment | Openings ratio |
|---|---|---|---|
| 2021 | ¥4.72M | — | — |
| 2022 | ¥4.70M | — | — |
| 2023 | ¥4.73M | — | 2.41x |
| 2024 | ¥4.66M | — | 2.08x |
| 2025 | ¥5.07M | — | 1.98x |
Projected pay for 鉄骨工 (3, 5 and 10 years)est.
Today ¥5.07M → in 3 years ¥5.45M → in 5 years ¥5.73M → in 10 years ¥6.48M (10-year range ¥5.57M–¥7.52M). The model assumes pay growth of +2.5% per year.
What drives the annual growth rate
Projected pay = current pay × (1 + annual growth)^years. The annual growth rate starts from a base wage-growth rate and adds or subtracts labor demand (the job-openings-to-applicants ratio), wage momentum and AI replacement risk for each occupation. Projections are not guarantees. How it is calculated →
Outlook score for 鉄骨工
Each component is a percentile rank among all occupations in the same country (0–100). Weights: labor demand 25, wage momentum / openings 15, pay level 15, AI resistance 25, aging workforce 10 (Japan only), entry barrier 10.
Will AI replace 鉄骨工? AI replacement risk
How AI is changing this job
A written analysis for this occupation is being prepared.
AI replacement risk compares the parts of a job that are easy to hand to AI or software (processing information, documentation, repetitive computer work) with the parts that are hard to automate (physical work, working closely with people, judgment in unpredictable settings), using the MHLW job tag survey on work activities, work context, skills and knowledge. The result is a relative position among all occupations in the country, scaled to 0–100%. Methodology →
Labor demand for 鉄骨工
A ratio above 1.0 means there are more job openings than applicants (a labor shortage). The 5- and 10-year figures are estimates from the openings ratio, wage momentum and AI replacement risk.
The same job in the United States
| 鉄骨工 Japan | Structural Iron and Steel Workers United States | |
|---|---|---|
| Median / average pay | ¥5.07M ≈ $32,219 | $62,780 |
| Pay in 10 years (est.) | ¥6.48M | $86,600 |
| Outlook score | 52 | 62 |
| AI replacement risk | 42% Moderate | 8% Very low |
| Workers | — | 68K |
Matched by occupation (SOC code). Yen converted at 157.25 JPY/USD for reference; Japanese figures are averages, U.S. figures are medians, and the surveys define occupations differently.
Skills, education and requirements for 鉄骨工
Key skills
Skill levels from the MHLW job tag worker survey.
Key knowledge areas
What the work involves
Licenses and certifications (Japan)
- １級鉄工技能士 National license
- ２級鉄工技能士 National license
Related qualifications listed on job tag (names in Japanese). Some are mandatory, others recommended.
Education of workers
Training before entry
Related work experience
Difficulty of entry: ★★★☆☆ Moderate (from education, training, experience, licenses)
How to become 鉄骨工
The typical path in Japan is shown by the education, training and experience of current workers above and in the Japanese guidance below. A detailed English guide for this occupation is being prepared.
Guidance from job tag (Japanese)
重い物を扱う作業もあるため、体力が必要である。数人でチームを組んで仕事をするので、協調性も求められる。
Career path and how to earn more as 鉄骨工
Career-path guidance is being prepared. Pay by experience is shown in the Pay section.