Kev kub siab Seamless Boiler Raj

Kev kub siab seamless boiler tub ASTM A335 Peb tuaj yeem tsim tau thiab muab steel boiler plab rau cov qhua tuaj noj mov, cov lus qhia muaj xws li qhov ntau thiab tsawg ntawm 1 leeg mus txog 26 rau inch diameter nrog. Hom hlau tube muaj xws li ultra hig h zog ...

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Kev kub siab seamless boiler raj ASTM A335


Peb tuaj yeem tsim tau thiab muab steel hlau rau tub ntxhais, cov lus qhia muaj xws li qhov ntau thiab tsawg ntawm 1 leeg. Cov hlau txuas hluav taws xob muaj xws li ultra hig h zog (UHS), lub zog siab low-alloy (HSLA), kev sib sib zog nqus ntawm cov tub ntxhais kawm ntawv (DDIF), kev kos duab zoo (AKDQ), ultra-low carbon (ULC) neeg spec.


ASTM A335 Seamless Ferritic Alloy Steel Yeeb Nkab rau Kev Kub Kub-Txias


Tshuaj Txhaum Tshuaj:
Qib kawm C Mn P S Si Mo
P1 0.10-0.20 0.30-0.80 0.025 0.025 0.10-0.50 0.44-0.65
P2 0.10-0.20 0.30-0.61 0.025 0.025 0.10-0.30 0.44-0.65
P5 0.15max 0.30-0.60 0.025 0.025 0.50max 0.45-0.65
P5b 0.15max 0.30-0.60 0.025 0.025 1.00-2.00 0.45-0.65
P5c 0.12max 0.30-0.60 0.025 0.025 0.50max 0.45-0.65
P9 0.15max 0.30-0.60 0.025 0.025 0.25-1.00 0.90-1.10
P11 0.05-0.15 0.30-0.60 0.025 0.025 0.50-1.00 0.44-0.65
P12 0.05-0.15 0.30-0.61 0.025 0.025 0.50max 0.44-0.65
P15 0.05-0.15 0.30-0.60 0.025 0.025 1.15-1.65 0.44-0.65
P21 0.05-0.15 0.30-0.60 0.025 0.025 0.50max 0.80-1.06
P22 0.05-0.15 0.30-0.60 0.025 0.025 0.50max 0.87-1.13
P23 0.04-0.10 0.10-0.60 0.030max 0.010max 0.50max 0.05-1.30
Mechanical Properties
Mechanical zog P1, P2 P12 P23 P91 P92, P11 P122
Tensile zog 380 415 510 585 620 620
Tawm kom muaj zog 205 220 400 415 440 400


Tshav Kub Kho

A / N + T

N + T / Q + T

N + T

Khoom Siv & Khoom

Seamless Cov yeeb nkab tej zaum yuav kub kub los yog txias twv nrog kev kho cua kub tag hauv qab sau tseg.

Cov Kev Kho Mob Thaum Tshav Kub Kub
Qib kawm Hom Tshuaj Kho Mob
P5, P9, P11, thiab P22
Kev Ntsuas Kub Txaus F [C] Kev Tsov Hluav Taws Kub Qis los yog Tempering
Qhov cub ntau F [C]
A335 P5 (b, c) Tag nrho los yog Isothermal Anneal
Kub cev thiab Temperate ***** 1250 [675]
Subcritical Anneal (P5c xwb) ***** 1325 - 1375 [715 - 745]
A335 P9 Tag nrho los yog Isothermal Anneal
Kub cev thiab Temperate ***** 1250 [675]
A335 P11 Tag nrho los yog Isothermal Anneal
Kub cev thiab Temperate ***** 1200 [650]
A335 P22 Tag nrho los yog Isothermal Anneal
Kub cev thiab Temperate ***** 1250 [675]
A335 P91 Kub cev thiab Temperate 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
Txaus siab thiab Temper 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]
Mechanical Tests Specified

Transverse lossis Longitudinal Tension Test thiab Kev Sib Tawm, Kev Xeem Teeb Meem, lossis Kev Xeem Phom
Rau cov khoom siv cua sov uas siv hauv hom tshuab ua roj rau hom, yuav tsum kuaj 5% ntawm cov yeeb nkab los ntawm txhua qhov kho. Rau me me ntau, tsawg kawg yog ib lub yeeb nkab yuav tsum kuaj.
Rau cov khoom siv cua sov los ntawm cov txheej txheem tas mus li, kev ntsuam xyuas yuav tsum yog ua kom txaus rau cov yeeb nkab kom muaj 5% ntawm qhov ntau, tab sis tsis pub tsawg dua 2 lub yeeb nkab.

Cov Lus Cog Tseg rau Hardness Test:
P91 yuav tsis muaj qhov nyuaj tsis tshaj 250 HB / 265 HV [25HRC].

Tsab ntawv rau Kev Xeem Cov Khoov:
Rau cov yeeb nkab uas siab tshaj NPS 25 thiab nws txoj kab uas hla ntawm phab ntsa thickness yog 7.0 los yog tsawg dua yuav tsum tau raug rau kev xeem tw khawm siv qhov kev sib tw sib tw.
Lwm cov yeeb nkab uas sib npaug sib npaug los yog tshaj li ntawm NPS 10 yuav raug ntsuam xyuas qhov kev twv qhov kev sib tw ntawm qhov kev sib tw ntawm txoj kev pom zoo ntawm tus neeg yuav khoom.
Cov kev twv txheej txheem yuav tsum tau sib tw ntawm chav sov li ntawm 180 los yog tsis muaj cracking rau sab nraud ntawm cov khoom nyom.

Hydrostatic Test

Lub cev ntim ntawm lub khoov yuav tsum yog 1 nti [25 hli].
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau kuaj Hydro, ntawm qhov kev xaiv ntawm cov khoom siv fais fab kev siv hluav taws xob yuav siv tau.


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u = 3240051989, 3280139614 & fm = 27 & gp = 0.jpg



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