Steel Compare

Q345 vs Q355 – Composition, Heat Treatment, Pro...

Introduction Q345 and Q355 are two widely used Chinese-designated structural steels frequently considered in design, fabrication, and procurement for buildings, bridges, pressure parts, and heavy equipment. Engineers routinely balance factors...

Q235 vs Q255 – Composition, Heat Treatment, Pro...

Introduction Engineers, procurement managers, and manufacturing planners frequently choose between Q235 and Q255 when specifying structural carbon steels for welded frames, plates, and sections. The decision commonly balances cost and...

Q235 vs Q345 – Composition, Heat Treatment, Pro...

Introduction Q235 and Q345 are two of the most widely used structural steels in China and in international supply chains where Chinese mill products are specified. Engineers, procurement managers, and...

304 vs 204Cu – Composition, Heat Treatment, Pro...

Introduction Choosing between 304 and 204Cu is a frequent procurement and design dilemma for engineers and manufacturing planners: should you pay for higher nickel content and the long track record...

A283C vs A36 – Composition, Heat Treatment, Pro...

Introduction ASTM A283 Grade C and ASTM A36 are two of the most commonly specified low‑carbon structural steels in construction, machinery frames, pressure parts in low‑stress applications, and general fabrication....

ASTM A516 Gr60 vs Gr70 – Composition, Heat Trea...

Introduction ASTM A516 Grades 60 and 70 are two of the most commonly specified carbon steel plates for fabrication of pressure-containing equipment, especially boilers, pressure vessels, and storage tanks. Engineers...

S355 vs S460 – Composition, Heat Treatment, Pro...

Introduction S355 and S460 are two widely used structural steels in EN 10025-series specifications. Engineers, procurement managers, and manufacturing planners frequently face the selection dilemma between lower-cost, readily fabricated steels...

S275 vs S355 – Composition, Heat Treatment, Pro...

Introduction S275 and S355 are two widely used European structural steels specified in EN 10025. Engineers, procurement managers, and manufacturing planners frequently weigh the trade-offs between cost, strength, weldability, and...

S235 vs S275 – Composition, Heat Treatment, Pro...

Introduction S235 and S275 are two widely used European structural carbon steels specified by EN standards. Engineers, procurement managers, and manufacturing planners commonly weigh trade-offs between cost, weldability, formability, and...

SS400 vs Q235 – Composition, Heat Treatment, Pr...

Introduction SS400 and Q235 are two of the most commonly specified plain-carbon structural steels used worldwide for general fabrication, construction, and machinery. Engineers, procurement managers, and manufacturing planners frequently weigh...

A36 vs S275 – Composition, Heat Treatment, Prop...

Introduction A36 and S275 are two of the most frequently specified structural steels in global industry. Engineers, procurement managers, and manufacturing planners commonly evaluate these grades when designing buildings, bridges,...

A36 vs A992 – Composition, Heat Treatment, Prop...

Introduction ASTM A36 and ASTM A992 are two of the most frequently specified structural steels in building and heavy fabrication. Engineers and procurement teams commonly weigh trade-offs between cost, yield...

A36 vs A572 – Composition, Heat Treatment, Prop...

Introduction ASTM A36 and ASTM A572 are two of the most commonly specified structural steels in construction, fabrication, and heavy industry. Engineers, procurement managers, and manufacturing planners often weigh cost,...

Q195 vs Q235 – Composition, Heat Treatment, Pro...

Introduction Q195 and Q235 are two commonly specified Chinese-designation carbon steels used across structural, fabrication, and general engineering applications. Engineers, procurement managers, and manufacturing planners often decide between them when...

45# vs 40Cr – Composition, Heat Treatment, Prop...

Introduction Engineers, procurement managers, and manufacturing planners often face the choice between plain-carbon steels and low-alloy steels for rotating shafts, gears, pins, and machine components. 45# (commonly designated as a...

20# vs 45# – Composition, Heat Treatment, Prope...

Introduction Engineers, procurement managers, and manufacturing planners frequently choose between 20# and 45# when specifying plain carbon steels for shafts, gears, fasteners, and general mechanical parts. The decision typically balances...

SPCC vs SPCE – Composition, Heat Treatment, Pro...

Introduction SPCC and SPCE are two widely used JIS-designated cold-rolled carbon steel grades frequently specified in sheet and coil form for manufacturing, automotive, appliance, and general fabrication work. Engineers, procurement...

SPCC vs SPCD – Composition, Heat Treatment, Pro...

Introduction SPCC and SPCD are two closely related cold-rolled carbon steel grades commonly specified under JIS and used worldwide in sheet-metal fabrication. Engineers, procurement managers, and manufacturing planners routinely weigh...

SPHC vs SPHD – Composition, Heat Treatment, Pro...

Introduction SPHC and SPHD are two JIS-designated hot-rolled steel grades commonly specified in sheet and strip for structural and forming operations. Engineers, procurement managers, and production planners frequently face the...

Q390 vs Q420 – Composition, Heat Treatment, Pro...

Introduction Q390 and Q420 are high-strength structural steels commonly specified in Chinese and related markets for load-bearing applications where higher yield strength than conventional mild steels is required. Engineers, procurement...

Q345B vs Q345D – Composition, Heat Treatment, P...

Introduction Q345B and Q345D are two temper/grade variants of the Chinese low-alloy structural steel family commonly referenced under GB/T 1591. Engineers, procurement managers, and manufacturing planners frequently weigh them against...

Q235B vs Q235C – Composition, Heat Treatment, P...

Introduction Q235 is a family of Chinese-standard low-carbon structural steels used widely in general engineering and construction. Engineers, procurement managers, and manufacturing planners frequently decide between subgrades such as Q235B...

ST37 vs ST52 – Composition, Heat Treatment, Pro...

Introduction ST37 and ST52 are legacy European structural-steel grades that engineers, procurement managers, and manufacturing planners still encounter in specifications, material certificates, and legacy drawings. The selection dilemma typically centers...

A572 Gr50 vs A992 – Composition, Heat Treatment...

Introduction Selecting between ASTM A572 Grade 50 (A572 Gr50) and ASTM A992 (A992) is a common dilemma for engineers, procurement managers, and fabricators specifying structural steel. Decisions typically hinge on...

42CrMo vs 35CrMo – Composition, Heat Treatment,...

Introduction Engineers, procurement managers, and manufacturing planners frequently have to choose between closely related chromium–molybdenum steels for forged components, shafts, gears, and structural parts. The selection dilemma typically revolves around...

40Cr vs 42CrMo – Composition, Heat Treatment, P...

Introduction 40Cr and 42CrMo are two widely used medium‑carbon steels in engineering applications where a balance of strength, toughness, and cost is required. Engineers and procurement teams commonly choose between...

1.2344 vs 1.2343 – Composition, Heat Treatment,...

Introduction Engineers, procurement managers, and manufacturing planners frequently face a choice between closely related hot-work tool steels when designing dies and tooling that must survive thermal cycling, mechanical wear, and...

8407 vs H13 – Composition, Heat Treatment, Prop...

Introduction Engineers, procurement managers, and manufacturing planners frequently face a choice between nationally specified tool steels when selecting materials for hot-work tooling, dies, and heavy-duty components. The decision typically balances...

D3 vs D2 – Composition, Heat Treatment, Propert...

Introduction D2 and D3 are widely used cold-work tool steels chosen for knives, dies, shear blades, and wear parts where abrasion resistance is critical. Engineers, procurement managers and manufacturing planners...

DC53 vs SKD11 – Composition, Heat Treatment, Pr...

Introduction DC53 and SKD11 are two widely referenced cold-work tool steels used for punches, dies, shear blades, and other high-wear tooling. Engineers, procurement managers, and manufacturing planners commonly weigh tradeoffs...