Carbon grade & plate procurement tool
Carbon Steel Grade, Plate Weight & Cutting RFQ Tool
Keep the grade in its governing standard, estimate theoretical plate weight, add a commercial cutting allowance, and transfer the dimensions and delivery requirements into an RFQ.
Grade reference
Compare the complete designation
The rows below organize common buying routes. They do not declare cross-standard equivalence. Review product form, thickness, mechanical properties, chemistry, delivery condition, toughness, dimensions, inspection, and project approval.
| Grade family | Common purchasing context | Fields that still need review |
|---|---|---|
| ASTM A36 | General structural plate and shapes under the applicable ASTM product requirements | Product form, thickness, yield and tensile rules, chemistry, supplementary tests, and project code |
| EN 10025 S235 or S355 families | Structural products with strength and toughness subgrades | JR, J0, J2 or other subgrade, delivery condition, thickness, impact test, and CE-related project needs |
| ASTM A572 Grade 50 | Higher-strength structural product where the design cites this grade | Product form, thickness, chemistry, toughness if added, weldability, and dimensional standard |
| Other national grade | Project or market-specific designation | Exact standard edition, grade, form, thickness, tests, and a signed equivalence or substitution review |
RFQ reference
Attach the drawing and acceptance basis
A quote-ready plate request combines the exact standard and grade with dimensions, delivery condition, impact and Z-direction requirements, surface, cutting files, tolerances, MTC/UT scope, traceability, quantity, packing, and destination.
Continue to structural fabrication selection- 01
Complete product standard and grade
- 02
Product form, thickness, dimensions, and quantity
- 03
Strength, impact, chemistry, and weldability requirements
- 04
Delivery condition, certificate, UT, surface, and traceability
- 05
Fabrication scope, packing, destination, and schedule
Grade, weight and cutting questions
Does the same yield strength make two grades equivalent?
No. A comparison also needs chemistry, tensile range, elongation, thickness rules, toughness, delivery condition, dimensions, testing, and the governing project standard.
Why does plate thickness matter in grade selection?
Many standards change minimum strength or available subgrades by thickness. Thickness also affects welding, restraint, heat input, toughness review, and available delivery condition.
What should accompany a proposed alternative grade?
Provide the two complete designations, standard editions, product form and thickness, chemistry and mechanical comparison, delivery condition, test plan, dimensional rules, weld review, and written project disposition.