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Resources/Materials & grades/S355J2H

Materials & grades

S355J2H (1.0576) hollow section: EN 10219 and EN 10210, with ASTM A500 C, IS 4923 Yst 355 and JIS STKR490

S355J2H (1.0576) is the standard European structural hollow section grade: a non-alloy steel with 355 MPa minimum yield, 470–630 MPa tensile strength and 27 J impact energy at −20 °C, made cold formed to EN 10219-1 or hot finished to EN 10210-1. ASTM A500 Grade C, IS 4923 Yst 355 and JIS G 3466 STKR490 are its closest equivalents elsewhere.

Names by standard

What it is called in each region

RegionSystemDesignationNormaMatch
USAASTMA500 Grade C50 ksi (345 MPa) yield, 62 ksi tensile; no impact requirement.ASTM A500/A500MClosest equivalent
ASTMA1085 Grade A50 ksi yield with a Charpy requirement; closest US counterpart for toughness.ASTM A1085/A1085MClosest equivalent
UKBS EN 10219-1 / BS EN 10210-1S355J2HThe UK uses the European standards unchanged.BS EN 10219-1 (cold formed), BS EN 10210-1 (hot finished)Same material
BS 4360 / BS 6363 (legacy)Grade 50D hollow sectionsWithdrawn and replaced by EN 10210 and EN 10219. Grade 50D is the usual predecessor; check with the supplier before treating it as identical.BS 4360, BS 6363Closest equivalent
EUEN 10027-1 nameS355J2HS = structural, 355 = minimum yield in MPa, J2 = 27 J at −20 °C, H = hollow section.EN 10219-1 (cold formed), EN 10210-1 (hot finished)Same material
EN 10027-2 number1.0576EN 10219-1, EN 10210-1Same material
EN 10027-1 nameS355J0H / S355K2HSame 355 MPa yield; J0H is impact tested at 0 °C and K2H needs 40 J at −20 °C.EN 10219-1, EN 10210-1Closest equivalent
ÍndiaIS 4923Yst 355Indian hollow steel sections (square, rectangular, circular) by minimum yield: 355 MPa.IS 4923:2017Closest equivalent
IS 1161Yst 355Circular tubes only; 355 MPa yield.IS 1161:2014Closest equivalent
JapanJIS G 3466STKR490Square and rectangular tubes: 325 MPa yield, 490 MPa tensile.JIS G 3466Closest equivalent
JIS G 3444STK490Round tubes for general structural use. Yield minimum is lower than 355 MPa.JIS G 3444Closest equivalent

On equivalence

  • A500 Grade C is the usual US pairing, but it requires lower tensile strength, no impact test and a different composition. A1085 is closer on toughness.
  • S355J2H and S355J2 (plates and sections, EN 10025-2) are different products with similar names; do not substitute one for the other without checking the standard.
  • BS 4360 Grade 50D hollow sections are the usual UK predecessor; BS 4360 and BS 6363 are withdrawn.
  • IS 4923 and IS 1161 are graded by yield only; Yst 355 has a 355 MPa minimum yield but no impact requirement or CEV limit in the figures found, so it is not a drop-in substitute.
  • JIS G 3466 STKR490 has 325 MPa minimum yield, below 355 MPa. JIS G 3444 STK490 is for round tubes.
  • The 2006 edition of EN 10219-1 and EN 10210-1 are still the editions quoted in most declarations of performance; check current editions for new work.

Chemical composition

Composition limits, mass %

ElementGrade C (heat analysis)USA · ASTM A500/A500MS355J2H (1.0576), cold formed, up to 16 mmEU · EN 10219-1S355J2H (1.0576), hot finished, up to 16 mmEU · EN 10210-1STKR490Japan · JIS G 3466
C≤0.23≤0.22≤0.22≤0.18
Si—≤0.55≤0.55≤0.55
Mn≤1.35≤1.60≤1.60≤1.50
P≤0.035≤0.030≤0.030≤0.040
S≤0.035≤0.030≤0.030≤0.040
Cu≥0.20 when copper steel is specified———
Al—≥0.020 (unless other nitrogen-binding elements are present)≥0.020 (unless other nitrogen-binding elements are present)—
CEV—≤0.45≤0.45—

Mechanical properties

Strength and hardness

ConditionTensile strengthYield strengthElongationHardness
Cold formed (EN 10219-1 S355J2H)Specified, wall 3–16 mm; elongation reduced by 2 for D/T < 15 (round) or (B+H)/2T < 12.5 (shaped); 27 J at −20 °CEN 10219-1 as declared by Tata Steel UK and Marcegaglia470–630 MPa68–91 ksi≥355 MPa≥51.5 ksi20 %—
Cold formed (EN 10219-1 S355J2H)Specified, wall under 3 mm; thin-wall elongation per EN 10219-1 section 9.2.2EN 10219-1 as declared by Tata Steel UK and Marcegaglia510–680 MPa74–99 ksi≥355 MPa≥51.5 ksi——
Hot finished (EN 10210-1 S355J2H)Specified, wall 3–16 mm; longitudinal elongation, transverse 2 points lower; 27 J at −20 °CEN 10210-1 as declared by Marcegaglia470–630 MPa68–91 ksi≥355 MPa≥51.5 ksi22 %—
Hot finished (EN 10210-1 S355J2H)Specified, wall over 16 to 40 mm (335 MPa over 40 to 65 mm)EN 10210-1 as declared by Tata Steel for Celsius 355 (dual certified S355NH / S355J2H)470–630 MPa68–91 ksi≥345 MPa≥50 ksi——
Cold formed (ASTM A500 Grade C, all shapes, A500-21)Specified minimum; no impact requirementASTM A500 as tabulated by Wikipedia and Atlas Tube≥425 MPa≥62 ksi≥345 MPa≥50 ksi21 %—
Cold formed (JIS G 3466 STKR490)Specified minimums; No. 5 test pieceJIS G 3466 as listed by Nippon Steel Kenzai≥490 MPa≥71 ksi≥325 MPa≥47 ksi23 %—

In practice

Behaviour, heat treatment and uses

Characteristics

  • Fully killed steel with nitrogen-binding elements; carbon equivalent (CEV) is limited to 0.45 for walls up to 16 mm.
  • Impact tested at −20 °C (27 J), suitable for outdoor and low-temperature structures.
  • The designation is the same for cold-formed (EN 10219) and hot-finished (EN 10210) sections, but their delivery conditions and tolerances differ. State the full standard on the order.
  • Tensile range is 470–630 MPa for walls from 3 mm and 510–680 MPa below 3 mm in EN 10219-1.
  • EN 1090-2 requires a 3.1 inspection document for structural steel above S275 (Tata Steel UK declaration).

Heat treatment

  • EN 10219 sections are cold formed from strip and welded, with no heat treatment after forming.
  • EN 10210 sections are hot finished. Normalized versions have their own names (S355NH, S355NLH), and Tata Steel certifies Celsius 355 to both S355NH and S355J2H.
  • Hot-dip galvanizing is routine for hollow sections; see the galvanizing standards page.

Usos típicos

  • Building frames, columns, trusses and bracing
  • Bridges, stadium roofs and offshore structures
  • Crane booms, towers and masts
  • Machine bases and heavy fabricated frames

Pipe and tube steels

Similar grades compared

GrauC %Mn %Cr %Ni %Tensile, first listed condition
S355J2H≤0.23≤1.35——470–630 MPa
A500 Grade B / C≤0.26≤1.35——≥400 MPa
IS Yst 310≤0.26≤1.35——≥330 MPa
A53 Grade B≤0.30≤1.20≤0.40≤0.40≥415 MPa
A106 Grade B≤0.300.29–1.06≤0.40≤0.40≥415 MPa
API 5L X42 / L290≤0.28≤1.30≤0.50≤0.50≥415 MPa
API 5L X52 / L360≤0.28≤1.40≤0.50≤0.50≥460 MPa
API 5L X60 / L415≤0.28≤1.40≤0.50≤0.50≥520 MPa
API 5L X65 / L450≤0.28≤1.40≤0.50≤0.50≥535 MPa
API 5L X70 / L485≤0.28≤1.40≤0.50≤0.50≥570 MPa

Composition from the US standard where one exists, otherwise the first standard listed on each grade's page. Strength conditions differ between grades; open a grade for its full table.

Perguntas respondidas

Common questions

What does S355J2H mean?

S means structural steel, 355 is the minimum yield strength in MPa, J2 means 27 J impact energy at −20 °C, and H means hollow section.

What is the difference between EN 10219 and EN 10210 S355J2H?

EN 10219 covers cold-formed welded sections, EN 10210 hot-finished sections. The grade name and the 355 MPa yield are the same, but hot-finished sections hold a higher yield in thick walls and have uniform properties around the section.

Is S355J2H the same as S355J2?

No. S355J2 (EN 10025-2) is a plate and section grade. S355J2H is the hollow section version with its own standard, composition and tolerances.

What is the American equivalent of S355J2H?

ASTM A500 Grade C is the usual match and A1085 Grade A is closer for toughness. Neither is identical: A500 requires lower tensile strength and no impact test.

What is the Indian equivalent of S355J2H?

IS 4923 Yst 355 for square, rectangular and round sections, or IS 1161 Yst 355 for circular tubes. They are graded by yield strength and do not require the S355J2H impact test.

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Keep reading

A500 Grade B / CASTM A500 covers cold-formed welded and seamless carbon steel structural tubing in rounds and shapes; Grade C is the usual choice for US hollow structural sections (HSS), with a 345 MPa (50 ksi) minimum yield for all shapes since the 2021 edition (round tubes were 315 MPa, 46 ksi, before).IS Yst 310Yst 310 is the common Indian structural steel tube grade, with a 310 MPa (45 ksi) minimum yield and a 450 MPa (65 ksi) minimum tensile strength, made to IS 1161 for circular tubes and IS 4923 for square, rectangular and circular hollow sections.S355J2S355J2 is a common higher-strength structural steel of EN 10025-2, with a minimum yield of 355 MPa (51 ksi) up to 16 mm and a tensile strength of 470–630 MPa.Structural steel gradesStructural steel grades in the USA, UK, EU, India and Japan line up by minimum yield strength: about 250 MPa (A36, S235/S275, E250, SS400), about 350 MPa (A572 Grade 50 / A992, S355, E350, SM490) and about 410–450 MPa (A572 Grade 60/65, S450, E410/E450, SM570).EN 10027 names and numbersEuropean steels carry two identifiers under EN 10027: a steel name (Part 1) such as S235JR, C45 or 42CrMo4 that describes the steel's use or chemistry, and a material number (Part 2) such as 1.0503 or 1.7225.Galvanizing standardsHot-dip galvanizing is specified by ASTM A123 (fabrications), A153 (hardware) and A767 (rebar) in the USA, EN ISO 1461 in the UK and EU, IS 4759 in India and JIS H 8641 in Japan.A572 Grade 50ASTM A572 Grade 50 is a high-strength low-alloy structural steel with a minimum yield of 345 MPa (50 ksi) and a minimum tensile strength of 450 MPa (65 ksi).

References

Sources

  1. Tata Steel UK: Hybox 355J2H declaration of performance (EN 10219-1:2006) — Yield, tensile by thickness, elongation, impact, CEV and composition.
  2. Marcegaglia: S355J2H EN 10219-1 declaration of performance
  3. Marcegaglia: S355J2H EN 10210-1 declaration of performance — Hot-finished values.
  4. Tata Steel Europe: Celsius 355NH declaration of performance — Yield by thickness for hot-finished sections (also dual certified S355J2H).
  5. Tata Steel Nederland: S355J2H structural tubes
  6. EN 10219-1 standard record — Standard title and scope.
  7. Atlas Tube: A1085 frequently asked questions
  8. Nippon Steel Kenzai: STKR400 / STKR490 (JIS G 3466)
  9. Wikipedia: ASTM A500
  10. BIS: Guidelines for Amendment No. 2 to IS 4923:2017 — Grades of IS 4923.
  11. Steel for Life Blue Book: BS 5950 references — BS EN 10210-1 replaces BS 4360:1990; EN 10210-2 replaces BS 4848-2; BS 6363 replaced by EN 10219-2.
  12. New Steel Construction: AD 295 hollow sections and steel grades — S355 is the normal grade for hollow sections to EN 10210 and EN 10219; SHS grades S355J2H previously BS 4360 Grade 50D.

Values summarize published limits and typical data. The governing standard and the current edition control; check them before specifying.