Steel Process

We professionally process and distribute various types of steel, such as hot rolled coil, steel plates, pipes, tubes, reinforcing bars, and we offer tailored client services based on our innovative skills and experience, as well as our environmentally conscious manufacturing facility.

01

Cutting-Edge Skills and Techniques

We always endeavor to give the finest customer satisfaction by leveraging our various experiences based on sophisticated skills and expert know-how

02

The Processing Center of POSCO

We take pride in our role as a processing center for top-of-the-line POSCO steel and supply the highest quality materials to our customers.

03

Eco-Friendly Manufacturing Facility

Our ISO 14001 EMS certification demonstrates our commitment to becoming a socially responsible company by producing and distributing eco-friendly materials.

Main Products

  • HR Coil

    We distribute and sell high-quality HR coils such as hot rolled steel sheets, checkered coil, and pickled oiled steel. Our HR coils are best suited for general structural applications, special steel applications, atmospheric corrosion-resistant steel, and automobile structures.

  • Steel Plate

    Seah offers high-quality thick steel plates with improved weldability and processability for shipbuilding, line pipes, and welding.

  • Pipe and Tube

    Seah's steel pipes and tubes are utilized in steel concrete reinforcement, which is mostly used in civil engineering applications such as condominiums, housing, bridges, and dam building.

  • Toll Processing

    We manufacture, distribute, and sell steel in the requested sizes, provide the best on-time shipment, and guarantee the highest quality steel at competitive prices.

  • General structures

    KS, JIS, ASTM, BS, DIN

    SS330/400/490/540, SM400A/B/C, SM490A/B,SM90A/B/C, SM490YA/YB, SM520B/C, A36, A283, A570, A607, A715,43A/B/C, 50B/C, ST22/33, ST52-3, RST37-2

  • Special steel applications

    POSCO, KS, JIS, SAE, DIN

    POS60BL, POS20FB, POS45FB, SM10C~SM55C, S10C~S55C, SK-3/4/5, SUP9, SCM415/430/435, SNCM220, 1010~1055/1526/1527/1536/1541, 50CRV4

  • Atmospheric corrosion-resistant steel

    POSCO, JIS

    PAWS50, HAWCS600, SPA-H

  • Automobile structures

    POSCO, JIS

    ATOS55, ATOS60/65, AUTOBEAM, STAB, SAPH310/370/400/440, SPFH540/590

  • Applications

    GRADE

    Classification societies

  • Shipbuilding

    General steel (A, B, D, E)
    High tensile steel (A, D, EH32/36)

    KR, NK, ABS, GL, LR, DNV, RINA, CR, BV, CCS

  • Application

    Specification

    Designation

  • High-pressure gas
    cylinders

    KS, JIS, ASTM, EN, API

    SS400/490/540, SWS400/490A/B/C, SWS490YA/YB, SWS520B/C, SWS570, SS400, SS490, SS540, SM400A/B/C, SM490A/B/C, SM490YA/YB, SM520B/C, SM570, A36, A573 Gr58/65/70, A572 Gr42/50/60/65, A529, S185, S235JR, J2G3, J2G4, S275JR, J2G3, J2G4, S355JR, J2G3, J2G4, API2H Gr42, Gr50

  • Boiler and pressure vessels

    KS, JIS, ASTM

    SB410, 450, 450M, 480, 480M, SGV410/450/480, SPV235/315/355/450/490, SLA235A/235B/325A/325B/360 SL9N590, A285 GrA/B/C, A387 Gr11, A515 Gr55/60/65/70, A516 Gr55/60/65/70, A537 Class I/II

  • Line pipes

    API

    5L A/B, X42, X52, X56, X60, X65, X70, X80

  • Atmospheric corrosion-resistant steel

    JIS, ASTM

    SMA400A/B/C, SMA490A/B/C, SMA570, A242, A588A/B/C/D/E/F

  • Machine structural steel

    KS, JIS, ASTM

    SM10C~SM58C, S10C~S58C, SCM415~SCM822, SAE1010~SAE1060

  • Applications

    Specification

    Designation

  • High-pressure gas
    cylinders

    JIS, ASTM

    SG255/295/325/365, A455

  • OCTGs

    API

    J55, K55, N80

  • Oil pipelines

    API 5L

    A, B, X42, X46, X52, X56, X60, X65, X70, X80

  • Cold rolling

    POSCO, KS, JIS, SAE, AISI

    POSHRD2, POSHRD3, CDP1008, SPHC/D/E, SPHC/D/E/EN, 1006~1095, 1008, 1010, 1019, 1023, 1030