Q235B is a low-carbon steel. "Q" stands for yield strength, 235 means its yield strength is 235MPa, and "B" means that the steel needs to undergo a 20℃room temperature impact toughness test. It is affordable, has good comprehensive performance, and has good plasticity. It can be easily made into the required shape through cold bending, stamping and other Procesi in med obdelavo ni enostavno prebiti ali deformirati . Njegova zmogljivost varjenja je tudi zelo odlična . Med gradnjo lahke tirnice je več odsekov tirnic enostavno privabiti v neprekinjene sledi, zmanjšanje težav in stroškov gradnje .
| Q235B | Mehanska lastnost | Kemična sestava (%) | |||||||||
| Moč donosa | Natezna trdnost | Raztezanje | Trdota | C | Si | Mn | S | P | |||
| MPA | kg/mm² | MPA | kg/mm² | min | Hb | Manj kot ali enako | Manj kot ali enako | Manj kot ali enako | |||
| Večji ali enak | Večji ali enak | ||||||||||
| 235 | 24 | 375-460 | 38-47 | 26% | 0.12-0.22 | 0.35 | 0.30-0.70 | 0.045 | 0.045 | ||
Moreover, Q235B can resist a certain℃of oxidation and corrosion under normal conditions, ensuring the stability and durability of light rail in daily use. Due to its high cost-effectiveness and convenient processing, Q235B is often used in light light rail lines with relatively small loads and slow running speeds, such as material transportation tracks inside factories and short-distance transportation tracks in small mine .
55Q is a high-strength medium-carbon steel with a carbon content of 0.52%-0.60%. Compared with Q235B, it has higher strength and hardness. After proper heat treatment, 55Q can obtain high surface hardness, excellent wear resistance, and can withstand frequent wheel rolling and friction. Vendar pa sta njena plastičnost in žilavost razmeroma slaba, njegova rezalna zmogljivost je na srednji ravni, njegova varljivost je slaba in je nagnjena k razpoku med ugaljenjem vode.
| 55Q | Mehanska lastnost | Kemična sestava (%) | |||||||||
| Moč donosa | Natezna trdnost | Raztezanje | Trdota | C | Si | Mn | S | P | |||
| MPA | kg/mm² | MPA | kg/mm² | min | Hbw | Manj kot ali enako | Manj kot ali enako | ||||
| Večji ali enak | Večji ali enak | Večji ali enak | Večji ali enak | Večji ali enak | |||||||
| 685 | 69 | 197 | 0.50-0.60 | 0.15-0.35 | 0.60-0.90 | 0.04 | 0.04 | ||||
Based on these characteristics, 55Q is suitable for light rail lines with high load-bearing capacity requirements, such as light rails used to transport large amounts of wood in forest areas, and light rail sections for heavy-load material transportation in mining areas. In these scenarios, light rails made of 55Q can rely on their high wear resistance and high strength to operate stably for a long time, reduce wear and replacement frequency, and ensure transportation Učinkovitost .
Gnee Railima profesionalno mednarodno trgovinsko skupino, ki je seznanjena z mednarodnimi pravili jekla in uvoznimi standardi različnih držav . Ponujamo celoten obseg storitev, vključno s posvetovanjem