What is SA 283 Grade C equivalent to for general comparison?
Direct ASME/ASTM Equivalent: ASTM A283 Grade C.
Common International Equivalents (for general comparison): EN S235JR, JIS SS400, and GB/T Q235B.
For any official procurement, design, or fabrication, always refer to the specific project's governing code and material requisition.
What is SA 283 Grade C ?
SA 283 Grade C is a carbon steel plate specification from the ASME (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code, Section II, Part A. It is a general-purpose, low to intermediate tensile strength steel primarily used for structural and moderate pressure applications.
Its closest and most widely accepted equivalents are in the ASTM A283 specification and international standards.
Primary Equivalent: ASTM A283 Grade C
This is the most direct equivalent.
SA 283 and ASTM A283 are technically the same material. The prefix "SA" denotes it is an ASME code case version, which is essentially the ASTM specification adopted by ASME with possible additional requirements for pressure vessel use. The chemical composition and mechanical properties are identical.
Therefore, SA 283 Gr C = ASTM A283 Gr C. You can use them interchangeably for code purposes when the applicable code (ASME or ASTM) is followed.
Chemical composition of ASME SA 283 Gr C equivalent material EN S235JR
| Grade | C (t≤16mm) | Si | Mn | P | S | Cu | N |
| SA 283 Gr C | 0.24 max | 0.04 max | 0.09 max | 0.035 max | 0.040 max | 0.20 min | - |
| S235JR | 0.19 max | - | 1.5 max | 0.045 max | 0.045 max | 0.60 max | 0.014 max |
Mechanical properties of ASME SA 283 Gr C equivalent material EN S235JR
| Grade | Yield strength ReH/(N/mm2) | Tensile strength Rm/(N/mm2) (3mm≤t≤16mm) |
Elongation A/% | Charpy V test | |
| (t≤16mm) min | (3mm≤t≤40mm) min | Temperature/℃ | Impact energy (Longitudinal)/J min | ||
| SA 283 Gr C | 205 | 380-515 | 25 | - | - |
| S235JR | 235 | 360-510 | 26 | 20 | 27 |
Key Material Properties of ASTM A283 Grade C:
Tensile Strength: 55 - 75 ksi (380 - 515 MPa)
Yield Strength: 30 ksi min (205 MPa min)
Composition: Plain Carbon Steel (max 0.28% Carbon, 0.90% Manganese)
International / Cross-Standard Equivalents:
While not always a perfect 1:1 match due to subtle differences in ranges or testing, the following are commonly considered equivalent or similar for material selection and procurement:
| Standard | Grade | Notes |
|---|---|---|
| EN 10025-2 | S235JR | Very close in yield strength (235 MPa min). A common European structural steel. |
| JIS G3101 | SS400 | Similar general purpose steel. Note: SS400 specifies tensile strength, not yield, but is in a comparable range. |
| ISO 630-2 | Fe360B | An older ISO designation, largely superseded by EN standards. |
| GB/T 700 | Q235B | Common Chinese structural carbon steel standard. |
| DIN 17100 | St37-2 | Older German standard, largely replaced by S235JR. |
What is SA 283 Grade C equivalent to?
ASME SA 283 Gr C equivalent material in EN standard is S235JR steel. S235JR steel has good plasticity, toughness and weldability, certain strength and good cold bending properties.
What is ASTM A283 grade C?
ASTM A283 Grade C is a specification for low and intermediate tensile strength carbon steel plates of structual quality for general applications. ASTM A283 Grade C has a specified minimum yield strengths of 30 ksi.
What is the difference between A283 C and A36 C?
A36 has a lower carbon content compared to A283 Grade C, making it easier to weld and more ductile. Mechanical Properties: A283 Grade C: higher strength and higher yield point compared to A36, making it suitable for high-strength applications.
What is the allowable stress for A283 Grade C?
Most carbon grades, including the Sa 283 Gr C, have a maximum allowed stress of 13,750psi.
What is the difference between SA 283 C and SA 36?
Alloy Composition
These differences suggest that A36 might be preferred for applications requiring higher strength and better fatigue resistance, while SA283 Grade C could be suitable for applications where the slightly lower strength properties are acceptable and potentially more cost-effective.
Full specification and details are available on request. The above information is provided for guidance purposes only. For specific design requirements please contact our technical sales staff.
