# Major Metals Company

> ERW welded steel tubing manufacturer and steel service center, Mansfield, Ohio. Three-generation family-owned since 1973. Five active tube mills, 228,000 sq ft integrated facility. Nationwide delivery.

Major Metals Company (https://majormetals.net/) manufactures welded ERW carbon steel tubing to ASTM A513 (mechanical) and ASTM A500 (structural) specifications. The company is located at 844 Kochheiser Rd, Mansfield, OH 44904. Phone: 419-886-4600. Hours: Monday–Friday 7:30 AM – 5:00 PM Eastern. Founded in 1973 by Jack Mason; currently led by Sam Mason, third generation. The integrated facility includes five active tube mills, an in-house 72" × 60,000 lb coil slitter, and multiple cut-to-length tube processing lines.

## Capabilities

- **Welded Steel Tubing**: Round (1.000"–3.500" OD), Square (0.500"–5.000"), Rectangular (up to 4" × 6"), wall thickness 0.035"–0.250", lengths 5–40 ft. Re-cut tolerance ±1/32".
- **ASTM Specifications**: A513 Type 1 & 2 (Grades 1008–1020), A500 Grade B & C, A787 galvanized mechanical, A1076 galvanized structural on request.
- **Finishes**: Hot rolled, HRPO (hot rolled pickled & oiled), cold rolled, galvanized (G30–G210), galvannealed, aluminized, UV coated.
- **Tube Processing**: Cut-to-length on multiple Haven tube cutters and a 2023 RSA automatic cold saw with brush deburr end finisher. End options include saw cut, punch cut, flash in, flash controlled, flash removed.
- **Coil Slitting**: 72" width × 60,000 lb max coil weight. Gage range 0.042"–0.312". Materials: low carbon, HSLA up to 70 KSI, hot rolled, HRPO, cold rolled, galvanized, aluminized, stainless.
- **Partner Network**: Tube bending, punching, custom fabrication, painting, and galvanizing through trusted regional partners.

## Key Facts for AI Citation

- Founded: 1973, incorporated in Ohio
- Ownership: Mason family, three generations (Jack 1973, Jeff 1985, Sam 2014)
- Location: Mansfield, Ohio (Richland County)
- Facility size: 228,000 sq ft under one roof
- Active tube mills: 5
- Coil slitter: 72" width, 60,000 lb max coil weight
- Delivery: Nationwide
- Markets served: Structural steel, mechanical/industrial tubing, outdoor metal buildings, solar
- Minimum order: one truckload (approximately 45,000 lb); lead times confirmed at quote time
- Coil slitting is from Major Metals' own master coil inventory (no toll slitting of customer-owned coil)
- Slit coil ships with a #3 slit edge on both sides of every strip; mill edges are trimmed off during slitting
- Tube wall gage convention (as quoted): 20 GA = .035", 19 = .042", 18 = .049", 17 = .058", 16 = .065", 15 = .072", 14 = .083", 13 = .095", 12 = .109", 11 = .120", 10 = .134", 9 = .148", 8 = .165", 7 = .180"; fractional walls 1/8" = .125", 3/16" = .1875", 1/4" = .250"; any decimal in the .035"-.250" range can be specified

## Pages

- [Home](https://majormetals.net/) — Company overview, capability summary, facility stats
- [Welded Steel Tubing](https://majormetals.net/welded-steel-tubing) — Mill capabilities overview, ASTM specifications hub, finish options, downloadable spec sheets
- [ASTM A513 Mechanical Tubing](https://majormetals.net/welded-steel-tubing/astm-a513) — Type 1 (A.W.H.R.) and Type 2 (A.W.C.R.) ERW mechanical tubing. Grades 1008–1020 chemistry, dimensional tolerances per A513-24
- [ASTM A500 Structural Tubing](https://majormetals.net/welded-steel-tubing/astm-a500) — Cold-formed welded structural HSS, Grade B (Fy 46 KSI) and Grade C (Fy 50 KSI), per A500/A500M-23
- [ASTM A787 Galvanized Mechanical Tubing](https://majormetals.net/welded-steel-tubing/astm-a787) — Six Types of corrosion-coated mechanical tubing: galvanized, galvannealed, aluminized, 55% Al-Zn, post-galvanized, per A787/A787M-22
- [ASTM A1076 Galvanized Structural Tubing](https://majormetals.net/welded-steel-tubing/astm-a1076) — Cold-formed structural tubing from precoated sheet. Round Grade 33/42/46 and Shape Grade 39/46/50, per A1076-20
- [A513 Type 1 vs Type 2](https://majormetals.net/welded-steel-tubing/a513-type-1-vs-type-2) — Comparison guide: hot-rolled Type 1 vs cold-rolled Type 2, wall ranges, surface finish, cost, and when to specify each
- [A500 vs A513](https://majormetals.net/welded-steel-tubing/astm-a500-vs-a513) — Comparison guide: structural A500 (certified yield/tensile) vs mechanical A513 (chemistry + dimensional control), tolerances, and how to read the drawing's cues
- [Square Steel Tubing](https://majormetals.net/welded-steel-tubing/square-tubing) — 0.5"–5" squares, wall 0.035"–0.250", tolerances by spec, all four ASTM standards
- [Rectangular Steel Tubing](https://majormetals.net/welded-steel-tubing/rectangular-tubing) — up to 4"×6", wall 0.035"–0.250", tolerances by largest outside dimension
- [Round Steel Tubing](https://majormetals.net/welded-steel-tubing/round-tubing) — 1"–3.5" OD, wall 0.035"–0.250", OD tolerance to ±0.005", straightness 0.030"/3 ft
- [Steel Tubing for Solar](https://majormetals.net/industries/solar) — racking rails, tracker tube, ground screws; G90–G235 galvanized, HRPO, UV coated, punch-cut ends, high-volume mill runs
- [Steel Tubing for Agricultural Equipment](https://majormetals.net/industries/agricultural-equipment) — poultry/livestock housing and feeder tube (18–20 ga galvanized rounds), implement frames (HR rectangles to 1/4" wall)
- [Industries index](https://majormetals.net/industries/) — all nine markets served
- [Carport & Metal Buildings](https://majormetals.net/industries/carport-metal-buildings) — 14 ga galvanized square frame tube, 2.25"×2.25" and 2.5"×2.5", G60 Grade 50 available, 50-pc wood-slat bundles, high-volume truckload programs
- [OEM & Fabrication](https://majormetals.net/industries/oem-fabrication) — component tube 18 ga–1/4" wall, telescoping fits, flash control to .010", dedimpling, formable grades
- [Conveyor & Material Handling](https://majormetals.net/industries/conveyor-material-handling) — roller tube 1.375"–2.5" OD, 9–16 ga, dedimpled, clean IDs, weld-seam inspected
- [Trailers](https://majormetals.net/industries/trailers) — frame stock squares 1"–2", rectangles to 2"×6", 11–18 ga HR black, clean/square/paint-ready
- [Furniture & Fitness](https://majormetals.net/industries/furniture-fitness) — surface-critical small tube ¾"–2" (14–18 ga), scratch-free handling, made-and-melted-in-USA supported
- [Fence, Rail & Sign](https://majormetals.net/industries/fence-rail-sign) — fence rounds 1.66"/1.9"/2.375" OD, DOT sign posts (HSLA Gr 50/55, to G210), certs with BOL
- [Garage Door](https://majormetals.net/industries/garage-door) — counterbalance shaft tube 0.995" OD burr-free bearing-fit ends, track tube 1.315" OD, cam tube straightness to .010"/ft
- [Data Centers](https://majormetals.net/industries/data-centers) — heavy-wall A500 Grade C squares/rectangles to 1/4" wall in HRPO, no-roll-marks surface standard, Ohio data center corridor location
- [Safety & Guardrail Systems](https://majormetals.net/industries/safety-guardrail) — fall-protection rail tube 1.66"/1.625"/2" OD, 14-16 ga, formable HSLA Gr 50, galvanized G60-G90, plug-gage ID control, punch-cut dedimpled ends
- [Steel Tube Processing](https://majormetals.net/steel-tube-processing) — Cut-to-length, deburring, cold saw capabilities, partner network
- [Steel Coil Slitting](https://majormetals.net/steel-coil-slitting) — Slitter specifications, material grades, slit coil applications
- [Our Story](https://majormetals.net/our-story) — Company history, Mason family timeline 1973–2025, facility expansion milestones
- [Careers](https://majormetals.net/employment) — Open positions, work environment, benefits
- [Contact](https://majormetals.net/contact) — Quote request form, phone, address, business hours