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What is S355J2 equivalent material in China?

Gangsteel, a leading manufacturer and exporter of structural steel plates, supplies premium EN 10025-2 S355J2 steel plates for construction, bridges, and heavy machinery applications. S355J2 is a non-alloy structural steel grade from EN 10025-2, offering high strength and low-temperature toughness at -20°C. In China, S355J2 is equivalent to GB Q355D, a low-alloy high-strength steel with similar properties. This article explores what S355J2 equivalent material in China is, detailing its equivalents, chemical compositions, mechanical properties, and applications, helping engineers and fabricators select suitable alternatives for Chinese projects.

 

s355j2 equivalent material in china Overview of S355J2

 

S355J2 is a European standard grade for hot-rolled non-alloy structural steels with a minimum yield strength of 355 MPa and impact toughness of 27 J at -20°C. Its equivalent in China is GB Q355D, offering similar strength and cold resistance for structural use. Gangsteel offers S355J2 with Chinese equivalents like EN 10025-2 S355K2 steel and EN 10025-2 S450J0 steel, ensuring compliance for global projects.

 

s355j2 equivalent material in china Grade Mapping

 

S355J2 has direct equivalents in Chinese standards like GB. The table below maps it to key Chinese grades:

European Grade

Chinese Equivalent

Notes

S355J2

Q355D

Similar strength and impact at -20°C.

S355J2+N

Q355D (normalized)

Normalized for improved toughness.

Key Notes on Grade Mapping:

  • GB Q355D: Primary equivalent, with yield 355 MPa and impact at -20°C.
  • Substitution is common in Chinese construction for European specs.

Gangsteel provides dual-certified plates, including EN 10025-2 S235J2 steel and EN 10025-2 S355JR+N.

 

s355j2 equivalent material in china Chemical Composition Comparison

 

Chemical compositions are similar, with low carbon for weldability. The table below compares EN 10025-2 S355J2 with GB Q355D (% by weight, max values):

Element

EN 10025-2 S355J2

GB Q355D

C

0.20

0.18

Mn

1.60

1.60

P

0.030

0.030

S

0.025

0.030

Si

0.55

0.55

Cu

0.55

0.30

N

0.012

-

Key Notes on Chemical Composition:

  • EN 10025-2 S355J2 has stricter P for toughness.
  • GB Q355D has similar low C for formability.

Gangsteel’s plates meet multiple standards for easy equivalence.

 

s355j2 equivalent material in china Mechanical Properties Comparison

 

Mechanical properties are close, with both offering high strength. The table below compares EN 10025-2 S355J2 with GB Q355D (for plates up to 16 mm):

Property

EN 10025-2 S355J2

GB Q355D

Yield (min, MPa)

355

355

Tensile (MPa)

470–630

470–630

Elongation (min, %)

20

20

Impact (J at °C)

27 at -20°C

34 at -20°C

Key Notes on Mechanical Properties:

  • Both have similar strength, but GB Q355D has higher impact energy.
  • EN 10025-2 guarantees toughness, superior for brittle fracture resistance.

Gangsteel provides tested plates for reliable performance.

 

s355j2 equivalent material in china Applications and Substitution Considerations

 

S355J2 is used in construction (bridges), offshore (platforms), and machinery (cranes). In China, Q355D substitutes for:

  • High-rise buildings and heavy bridges.
  • Wind turbines and moderate-cold machinery.

Substitution considerations:

  • Standards Compliance: EN for Europe, GB for China.
  • Toughness: Both have impact at -20°C.
  • Cost/Availability: Q355D is more available in China; Gangsteel bridges this.

For low-temperature, check EN 10025-2 S355J2 steel or EN 10025-2 S355K2 steel.

 

Why Choose Gangsteel for S355J2 Equivalents?

 

Gangsteel is a trusted supplier of S355J2 equivalents, offering:

  • Certified Quality: Plates undergo ultrasonic testing and chemical analysis to meet EN/GB standards.
  • Customization: Available in thicknesses from 6–300 mm, with options for normalization.
  • Global Supply: Competitive pricing and reliable delivery worldwide.
  • Technical Support: Guidance on equivalents like EN 10025-2 S275J2 steel or EN 10025-2 S355JR+N.

 

Gangsteel Solution

 

S355J2 equivalent in China is GB Q355D, with similar high strength and low-temperature toughness for structural use. Gangsteel’s high-quality plates ensure compliance for your projects. For more, explore our BS EN 10025-2 material grade guide.

Gangsteel

Gangsteel explores S355J2 equivalents in China, with grade mappings, chemical, and mechanical comparisons.Keywords: S355J2 China equivalent, S355J2 GB, S355J2 properties, S355J2 applications

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