United Metal FabricatorsUnited Metal Fabricators
MATERIALS & ALLOYS

Materials and alloys, by grade.

Carbon steel, stainless steel, aluminum, and alloy steel, plus high-temperature nickel alloys. Heat and lot traceability on every job.

01 · Material Groups

Standard material families.

Standard gauges stocked. Specialty stock sourced to print. Every material group ships with a certification package.

Stainless · 300 & 400 Series

Stainless Steel

304 / 304L (UNS S30400 / S30403)316 / 316L (UNS S31600 / S31603)309 / 309S (UNS S30900)310 / 310S (UNS S31000)321 (UNS S32100)347 (UNS S34700)

Sheet, plate, shim, and laminate stock — 0.002" to 1.750".

Carbon · A36 · 1008 · 1018

Carbon Steel

ASTM A36AISI 1008ASTM A1011 (HR)ASTM A1008 (CR)AISI 1018ASTM A500 Gr B/C

Standard gauges stocked on the floor for fast turnaround.

Aluminum · 1100 · 3003 · 5052 · 6061

Aluminum

1100-H14 (UNS A91100)3003-H14 (UNS A93003)5052-H32 (UNS A95052)6061-T6 (UNS A96061)5083-H321 (UNS A95083)6063-T5 (UNS A96063)

Sheet through plate, with forming, rolling, and GTAW filler matched per alloy.

Alloy Steel · 4130 · 4140 · 4150

Chromoly / Alloy Steel

AISI 4130 (UNS G41300)AISI 4140 (UNS G41400)AISI 4150 (UNS G41500)ASTM A606 (Cor-Ten)ASTM A516 Gr 70 (PVQ)ASTM A572 Gr 50

Aircraft- and defense-grade alloy steel, with heat-treat flow-down on the cert.

02 · High-Temp / Nickel Alloys

High-temperature nickel alloys.

UMF also fabricates high-temperature nickel alloys for gas turbine OEMs and their aftermarket supply chains, and has for decades. Weld procedures are qualified per alloy, GTAW is back-gas purged, and each job carries the documentation the program specifies.

◆ HIGH-TEMP / NICKEL ALLOYS

Inconel & Hastelloy

Inconel 625 (UNS N06625)Inconel 718 (UNS N07718)Inconel X-750 (UNS N07750)Inconel 671 (UNS N07671)Hastelloy X (UNS N06002)Hastelloy C-276 (UNS N10276)Monel 400 (UNS N04400)L605 / Haynes 25 (UNS R30605)

Sheet, plate, and weldments in Inconel 625, 718, X-750, and 671; Hastelloy X and C-276; Monel 400; and L605. Welded by AWS-certified welders under qualified procedures, with heat and lot traceability on every part.

03 · Traceability

Material traceability, mill cert through CMM report.

Heat and lot numbers are recorded at receiving and tracked through every operation in Fulcrum ERP. Parts are lot-etched at the fiber laser during the first cut. Each shipment includes a single PDF certification package: mill cert, weld procedure records, dimensional inspection, and CMM data.

Material Tracking
Heat and lot number recorded and traceable to every part
Laser Lot-Etching
In-line ID marking at the 6 kW fiber laser
CMM Inspection
Keyence XM-5000 optical CMM to ±0.0005″
Cert Package
PDF bundle with every shipment: mill cert + weld data + inspection report
ERP Integration
Fulcrum ERP ties job, material, and cert from receipt to shipment

Request a quote.

Send the print and the material specification. Quotes are returned in under 48 hours, with DFM considerations flagged before fabrication begins.

(508) 754-1800
Mon–Fri, shop hours
1021 Southbridge St
Worcester, MA 01610
Or submit your prints online →