Q355NH thiab Q355B yog ob qho tib si uas tsis yog-stainless carbon / low-alloy structural steels. Rau kev xaiv qhov project, ib qho tseem ceeb xav txog yog lawv qhov chaw durability nyob rau hauv sab nraum zoov lossis kev lag luam. Tsis yog qib yog stainless hlau los yog tshwj xeeb tsim weathering hlau, yog li ntawd lawv atmospheric corrosion kuj - txiav txim los ntawm cov tshuaj muaj pes tsawg leeg, microstructure, thiab nto tiv thaiv - feem ntau yog ib qho tseem ceeb ntawm cov khoom specifications. Cov neeg siv yog li muab piv Q355NH thiab Q355B tsis tsuas yog nyob rau hauv cov nqe lus ntawm lub zog thiab toughness, tab sis kuj nyob rau hauv lawv cov kev tiv thaiv nto los yog coated.
Kev txhais lus zoo rau Q355B vs Q355NH:
Ob qib yog suav hais tias tsim nyog weldable rau cov txheej txheem vuam txheej txheem thaum ua raws li qhov tsim nyog preheat / interpass tswj rau tuab. Tsawg-rau- cov pa roj carbon nruab nrab thiab tswj Mn khaws cov pa roj carbon sib npaug hauv ntau qhov tsim nyog rau cov khoom siv vuam siv.
Yog tias Q355NH suav nrog kev txhob txwm ua microalloying lossis yog tias nws raug xa mus rau qhov qub, nws qhov kev xav rau HAZ hardening yuav txawv me ntsis ntawm Q355B. Li qub microstructure tuaj yeem txo HAZ softening thiab txhim kho toughness, uas feem ntau ua rau post-weld cwj pwm zoo dua.
Kev taw qhia tswv yim: nco ntsoov xam cov pa roj carbon monoxide sib npaug rau cov batch thiab tuab, ua raws li cov khoom siv- cov lus pom zoo ntawm cov tuam txhab hlau, thiab siv cov preheat / interpass tswj thiab PWHT tsuas yog thaum suav lossis kev paub dhau los qhia tias muaj kev pheej hmoo ntawm qhov txias txias los yog kev cuam tshuam toughness.
Tej kev siv
| Q355B - Kev siv ib txwm | Q355NH - Kev siv ib txwm |
|---|---|
| General structural Cheebtsam: lub tsev steelwork, thav duab, beams, raws | Cov khoom siv uas yuav tsum tau ua kom zoo dua qis -kub toughness lossis siab- lub nkoj thiab kev txhawb nqa qhov kev xa khoom raws li tau teev tseg |
| Machinery puag, welded thav duab, tsis yog -cov qauv sab nrauv tseem ceeb | Heavy welded fabrications qhov twg los ntawm -thickness toughness thiab HAZ kev ua tau zoo yog qhov tseem ceeb |
| Tus nqi -sensitive daim ntaub ntawv uas tus qauv muaj zog thiab weldability txaus | Cov choj, cov chaw sab nrauv, lossis cov khoom siv ua haujlwm hauv cov huab cua txias dua thaum qis - qhov ntsuas kub tsis kam tiv thaiv |
GNEE Steel muab ob qho tib si Q355NH thiab Q355B qis- alloy steel daim hlau, nrog rau tus nqi- ntxiv cov kev pabcuam ua kom tau raws li koj qhov project xav tau.
Yog tias koj txaus siab rau peb cov khoom lossis xav tau cov ntaub ntawv tshiab tshaj plaws rau Q355NH thiab Q355B steel daim hlau, thov koj xav xa peb cov lus nug. Peb tos ntsoov yuav koom tes nrog koj!
Cim npe nrov: gb/t q355b vs q345nh rau structural steel, Tuam Tshoj gb/t q355b vs q345nh rau structural steel manufacturers, lwm tus neeg, Hoobkas
