Hardening (i.e., heat treating) metals and metal products for the trade · Michigan

Sun Steel Treating Inc

South Lyon, MI · ~54 workers · 5 years of OSHA Injury Tracking Application data.

B
Good Safety Record
2.1
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Sun Steel Treating Inc runs at 63% of its industry's injury rate - safer than the typical Hardening (i.e., heat treating) metals and metal products for the trade workplace, earning a grade B.

Sun Steel Treating Inc: 2.1 TCR = 63% of Hardening (i.e., heat treating) metals and metal products for the trade BLS 3.3 · 5y Form 300A (see methodology below)

Sun Steel Treating Inc safety composite

Sun Steel Treating Inc scores strongest on total case rate (tcr) (safer than 82% of same-industry peers) and weakest on fatalities (safer than 51%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

C

73/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
B 2.09 per 100 workers

Safer than 82% of industry peers

DART rate
B 0 per 100 workers

Safer than 79% of industry peers

Fatalities
D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−8.3

2016→2024

Sun Steel Treating Inc injury rate improved

Sun Steel Treating Inc's TCR fell 8.3 from 8.3 in 2016 to 0.0 in 2024. Peak filing year was 2016 at 8.3 TCR. In 2024, DART was 0× this establishment's average TCR (severity share of cases).

2016=8.3 · 2021=2.2 · 2022=0.0 · 2023=0.0 · 2024=0.0

OSHA ITA Form 300A scorecard

Establishment book 332811 · South Lyon, MI AT/BELOW-IND · SMALL

Grade B · TCR 2.1 · 63% of ind

  • DART 0.0 DART
  • RANK #8/43
  • PHOTO Solar Atmospheres of…
  • BOOK 5y book
  • INJ 7 inj
  • SIZE ~54 FTE

Nearest TCR peer: Solar Atmospheres of Western PA (0.0 TCR gap)

Read with this employer → · Industry book → · Michigan employers → · Look up another →

Sun Steel Treating Inc in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Sun Steel Treating Inc averages 2.1 TCR (63% of the Hardening (i.e., heat treating) metals and metal products for the trade BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Sun Steel Treating Inc TCR series: 2016=8.3 · 2021=2.2 · 2022=0 · 2023=0 · 2024=0 · BLS 3.3

Where Sun Steel Treating Inc falls in its industry

248 Hardening (i.e., heat treating establishments

Safer than 82% of graded establishments in this industry, whose median TCR is 4.2.

More dangerous than peersSafer than peers

Narrower to Michigan alone (the establishments it most directly competes with for workers and contracts): ranked #8 safest of 43 Hardening (i.e., heat treating employers in Michigan.

Sun Steel Treating Inc (54 employees, TCR 2.1) among 29 same-industry peers, split at the industry median of 38 employees and a TCR of 4.2 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 05001,0001,5002,000 051015 Average employees Total Case Rate Sun Steel Treating Inc
Sun Steel Treating Inc (54 employees, TCR 2.1) among 29 same-industry peers, split at the industry median of 38 employees and a TCR of 4.2

Sun Steel Treating Inc has more employees than the Hardening (i.e., heat treating) metals a median and a lower injury rate than the industry's median TCR of 4.2. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2024 0.0 0.0 0 0 0
2023 0.0 0.0 0 0 0
2022 0.0 0.0 0 0 0
2021 2.2 2.2 1 0 0
2016 8.3 2.8 6 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

332811 · MI · South Lyon

248 Hardening (i.e., heat treating) metals and metal products for the trade employers nationwide with a credible TCR · 16,393 rated employers in Michigan with headcount on file · 19 employers in South Lyon, MI · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Solar Atmospheres of Western PA 2.1 TCR
NAICS-TCR Bluewater Thermal Solutions - South Bend 2.1 TCR
NAICS-TCR Bluewater Thermal Solutions - Benton Harbor 2.0 TCR
NAICS-TCR Stack Metallurgical Services LLC 2.0 TCR
STATE-SIZE Residential Home Builder 54 FTE
STATE-SIZE Kalamazoo Facility 54 FTE
STATE-SIZE LS Brinker 54 FTE
STATE-SIZE ITC Operations-319 54 FTE
CITY-NEAR South Lyon Community Schools - 63240 1,048 FTE
CITY-NEAR Michigan Seamless Tube 182 FTE
CITY-NEAR Vector Group LLC 136 FTE
CITY-NEAR 018-00639 126 FTE
NAT-TCR Store 1042 2.1 TCR
NAT-TCR Store 1637 2.1 TCR
NAT-TCR Latta IGA #626 2.1 TCR
NAT-TCR Serco - Port Hueneme,CA 2.1 TCR
NAT-SIZE Parkside Lutheran Home 54 FTE
NAT-SIZE D&B Tile and Related Enterprises, Inc. 54 FTE
NAT-SIZE Regency Technologies - Durham 54 FTE
NAT-SIZE 20624 Gouverneur 54 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2024, 2023, 2022, 2021, 2016. This is publicly available government data - not a legal determination of workplace conditions.
Data sourced from official public datasets. See our methodology for details.