Contact Poongsan America

(213) 236-0300

601 S. Figueroa Street
Suite 4600
Los Angeles, CA 90017

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601 Figueroa Street, Suite 4600
Los Angeles, CA, 90017
United States

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Stainless Steel Strips

Stainless Steel Strips

Poongsan Special Metal Corporation (PSM) stainless steel strip products are recognized as the world’s-best products with precision dimensions, accurate mechanical properties, and superior flatness.

Production Scope

Gauge
0.03mm-1.5mm

Width
3-425mm

Tolerance
According to KS D 3698, 3534, JIS 4305, 4313. The others can be manufactured by the customer requirement.

Temper

  • Cold rolled: Products can be manufactured by mutual agreement with customer.
  • Surface finish: DF, BF, PF, Dull, Dura Finish

Mechanical properties

Guide Temper Hardness
(Hv)
Yield
Strength
(N/㎟)
Tensile
Strength
(N/㎟)
Elongation
(%)
STS301-CSP
1/2H 310≤ 510≤ 932≤ 10≤
3/4H 370≤ 745≤ 1,128≤ 5≤
H 430≤ 1,030≤ 1,324≤ -
EH 490≤ 1,275≤ 1,569≤ -
STS304-CSP
1/2H 250≤ 471≤ 785≤ 6≤
3/4H 310≤ 667≤ 932≤ 3≤
H 370≤ 883≤ 1,128≤ -

Stainless Steel Strip for Spring Capability

PSM’s products have excellent elastic limit value, fatigue strength, and creep resistance through stainless steel rolling and heat treatment technology accumulated for more than 30 years. They also have superior precision in thickness control, low distribution of mechanical properties, and superior flatness and mechanical properties. Therefore the products are widely used in components for mobile products, electronic parts, and automobile parts that require spring properties.

Main application
Various terminals, automobile gasket, brake lining, semiconductor clip, mobile phone hinge, mobile phone bezel, connector, LCD frame

Major steel type
301, 304, 304L, 305, 316L, 430, etc.

Stainless Steel Strip for IT and Display Devices

PSM produce various high precision and advanced function stainless steel strips that meet the needs of customers for components for electronic guns, small LCDs, switches, connector parts, frames for recently increasing large scale LCD monitors, and hard disk components with high-precision stainless processing technology.

Main application
LCD frame, mobile phone hinge/case/keypad/connector/bezel, plug, antenna, vibration motor, secondary cell, speaker, electrode of electronic gun, tri-metal, etc.

Major steel type
301, 304, 304L, 305, 201, 202, etc.

STS and Special Alloy Foil

PSM is a leading manufacturer of STS and special alloy foil, and produces the best quality ultra thin gage strips that are required for various high-precision electronic components for high strength and high corrosion resistant applications, with the best technological power in the industry and the latest foil manufacturing equipment.

Main application
Automobile anti-pad, gasket for mobile phone, dome switch, honeycomb, various gauge, etching components, fuel filter, etc.

Major steel type
301, 304, 430, etc.

Special Surface Treated BF, DF, PF

PSM produces various surface treated stainless steel strips such as BF, DF, and PF that meet the requirements of the products for functional and processing capability improvement as well as an elegant exterior look.

Main application
Exterior of digital camera, mobile phone keypad, mobile phone battery, diskette core, mobile phone case, electrode of electronic gun, HDD cover, etc.

Major steel type
301, 304, 304L, 430, etc.

Special Heat Treated MA, TA

PSM produces tension annealing treated stainless steel strips used in advanced function and high-precision components as well as managing treated high-strength products with the development of PSM's own heat treatment method and introduction of new facilities.

Main application
The hardness (held) of spinning and weaving machine, reed of spinning and weaving machine, parts for etching blades, high-precision press components, dome switch, HDD components, copier/printer components, etc.

Major steel type
420N1, 420J2, 304, 301, etc.


Usage for Stainless Steel Strips

No Alloy Finish Size End-Usage Remarks
1 Incoloy 840 BA 0.46 x 23.7 Pipe for sheath heater
2 430 BA 0.5 x 49.5 Mold for car
3 304 CSP-TA 0.25 x 126 Back plate for mobile phone
4 301 H 0.3 x 325 Spring for car
5 304L BA 0.5 x 58.8 Pipe for boiler Low carbon
6 304 3/4H 0.8 x 45 Ejection pin for mobile phone
7 304 CSP-TA 0.25 x 145 Back plate for mobile phone
8 301 3/4H 0.6 x 400 Spring for car
9 301 3/4H 0.4 x 70 Brake parts for car
10 304 3/4H 0.4 x 350 Bezel for mobile phone
11 301 CSP-TA 0.25 x 452 Engine gasket
12 301 3/4H 0.5 x 380 Brake pad spring for car
13 304 2D 0.4 x 94 Auto pump for car
14 304L BA 0.35 x 34.5 Tube for laparoscopy (medical device) Low carbon
15 305 BA 0.4 x 405 ABS sensor
16 304 CSP-PF 0.1 x 27 Connector for mobile phone
17 304L BA 0.18 x 12.7 Center pin for second battery Low carbon
18 304 BA-PF 0.3 x 400 Frame for mobile phone
19 420J2 MA 0.3 x 80 Heald for spinning machine
20 304 1/2H 0.5 x 228 Connector for USB
21 301 CSP-BF 0.25 x 360 Engine gasket
22 PB BA 0.65 x 55.8 Torque sensor for car
23 304 3/4H 0.15 x 41 Connector for mobile phone
24 301 1/2H 0.2 x 28 Connector for mobile phone
25 304 3/4H 0.4 x 86 Brake cover shim for car
26 304 BA 0.3 x 78 Flexible pipe
27 304 2D 0.25 x 313 Gasket for car
28 304 1/2H 0.15 x 440 Frame for mobile phone
29 430 C 0.08 x 100 Anti-pad for car
30 301 CSP-CF 0.3 x 29 Charging connector for mobile phone
31 301 H 0.8 x 100 Frame for glasses
32 445NF BA 0.3 x 314 Flue tube for boiler
33 304L BA 0.61 x 26 Brake sensor for car Low carbon
34 316L BA 0.25 x 184 Cooler for car Low carbon
35 Pure Ni BA 0.1 x 4 Tab for secondary battery

Tolerance on thickness

Nominal gage (mm) Normal Tolerance Special Tolerance
Under 150 mm Over 150 mm Under 150mm Over 150mm
Under 0.1 ± 0.005 ± 0.005 ± 0.003 ± 0.003
Over 0.10 to 0.16 ± 0.015 ± 0.020 ± 0.005 ± 0.008
Over 0.16 to 0.25 ± 0.020 ± 0.025 ± 0.008 ± 0.010
Over 0.25 to 0.40 ± 0.025 ± 0.030 ± 0.010 ± 0.012
Over 0.40 to 0.60 ± 0.035 ± 0.040 ± 0.015 ± 0.015
Over 0.60 to 0.80 ± 0.040 ± 0.045 ± 0.015 ± 0.018
Over 0.80 to 1.00 ± 0.040 ± 0.050 ± 0.015 ± 0.020
Over 1.00 to 1.25 ± 0.050 ± 0.050 ± 0.020 ± 0.025
Over 1.25 to 2.00 ± 0.050 ± 0.060 ± 0.020 ± 0.025

Tolerance on width

Nominal gage (mm) Under 80 mm Over 80 to 160 mm Over 160 to 250 mm Over 250mm
Under 0.16 ± 0.10 ± 0.10 ± 0.10 ± 0.15
Over 0.16 to 1.00 ± 0.15 ± 0.15 ± 0.20 ± 0.25
Over 1.00 to 1.60 ± 0.20 ± 0.20 ± 0.25 ± 0.30