LS Lindquist Steels — Tool Steel & Specialty Materials Division of The Chapin & Bangs Co.
/ Lindquist Steels — Est. 1944

Tool steel specialists.
Cold-work to hot-runner, in stock.

For 60+ years, Lindquist has been one of the East Coast's deepest tool-steel inventories. Plate, block, round, drill rod, and precision groundstock — backed by metallurgical sales support and authorized distribution from the world's specialty mills.

Quote a tool steel Selection guide
Founded
1944
Merged with C&B
September 2019
Grades stocked
40+ AISI & proprietary
Forms
Plate · Block · Round · Drill Rod · GS
Color-coded bar ends in Lindquist warehouse rack.

Six families. One inventory.

Pick by application using the selection guide, or browse the family that fits.
/ 01 Cold-Work

Punches, blanking dies, shears

A2, A6, A8, A10, D2, O1, O6, S1, S5, S7, W1, L6, DC53®, Toolox® 33/44, Marshalloy MQ/FM®, 4140-HT.
/ 02 Hot-Work

Die casting, hot forming, forging

H13, H13 ESR, LSI SuperMelt H13 (NADCA #207), Viscount 44®, DH2F®, DH31-EX®, S7 MQ, DRM 1/2/3®.
/ 03 High-Speed

Drills, end mills, broaches

M1, M2, M3:2, M35, M42, M50, M4-PM, M48-PM, CPM® Rex® T-15/20/45/54/76, T-15-PM.
/ 04 Powdered Metal

Long-run wear, fatigue critical

CPM® 1V/3V/9V/10V/15V/M4/S90V, A11 PM, A11LV-PM, Z-Wear®, Z-Tuff®, Z-Max®, Z-420 PM®, DAP™ HTC.
/ 05 Plastic Mold

Cavities, lens-quality, hot runner

420 ESR, 440C, P20 Mod, PX5®, NAK 55®, NAK 80®, S-Star®, Superplast®, Porcerax II®, 15-5/17-4 PH.
/ 06 Stainless Tool

Corrosion + edge retention

LS 410, LS 416, LS 420 ESR, LS 440C, 15-5 PH, 17-4 PH, CPM® S90V®, Z-420 PM®.

Authorized US distributor.

When a customer specifies DC53® or NAK 80® or CPM® 10V® to print, they want the real grade from the real mill. We bring those grades into a domestic supply chain — with mill certs, traceability, and an ISO-controlled warehouse.
MillBrands / GradesTypical use
Daido SteelDC53® · DCMX® · NAK 55® · NAK 80® · DH2F® · DHA-World® · DH21® · DH31-EX® · DRM 1/2/3® · S-Star® · DAP™ HTC powdersCold-work, hot-work, plastic mold, additive
Crucible IndustriesCPM® 1V / 3V / 9V / 10V / 15V · CPM® M4 · CPM® S90V® · Rex® T-seriesLong-run cold work, HSS
Zapp AGZ-Wear® · Z-Tuff® · Z-Max® · Z-420 PM®Wear & toughness PM grades
SSABToolox® 33 · Toolox® 44Pre-hardened, machine-ready blocks
ArcelorMittal IndusteelSuperplast®Plastic mold large blocks
SintokogioPorcerax II®Self-venting sintered porous mold steel
Precision MarshallMarshalloy MQ® · Marshalloy FM®Pre-hardened 4140 alternatives
DC53 forged block with painted color-code.
/ Grade Spotlight — DC53® "Rev·o·lu·tion"

When D2 isn't tough enough, customers route DC53®.

A general-purpose cold-work tool steel from Daido with exceptional toughness, wear resistance, and temper resistance. Machines 20–40% faster than D2 with up to 50% less tool wear, then holds HRC 62–64 after a double high-temperature draw.

Hardness
HRC 58 / 60 / 62 / 64
Color code
Orange / Purple
Form
Round 1/4–20″ · Flat ½–12″ × 24″
Field result
5,000 → 25,000 hits (+400%)
View DC53® datasheet Request DC53® quote
/ What customers say
"An integral, valuable resource… honestly dependable."
— B.B., HIMS
"A partner we can rely on."
— Dave P. Fortune, Aero Forge
"Dependable supply, no surprises."
— Nelson D., General Motors

One Bridgeport floor.

Lindquist tool steel inventory shares the same 150,000 sq ft Connecticut facility as Chapin & Bangs — one PO, one cert package, one truck. No interbranch transfers, no satellite-warehouse delays.
/ HQ & Operations

Bridgeport, CT

165 River Street
Bridgeport, CT 06604
1-800-972-9615
sales@lindquiststeels.com

/ Footprint

150,000 sq ft

Eight large bays · full overhead crane coverage · tool steel and service center inventory under one roof.

/ Hours

Three shifts

Operations 24h, M–F
Sales: M–F 7:30a–5:00p ET