Sep 15, 2025 Xabar QOLDIRISH

Jis g3445 uglerod po'lat bilan mexanik naycha

Jis g3445Doimiy mashina va uskunalar, avtoulovlar, velosipedlar, mebel, jihozlarda ishlatiladigan uglerod po'lat naychalariga qo'llaniladi.

 

Jis 3445 mexanik po'lat naychasining spetsifikatsiyasi quyida keltirilgan:

STKMM11A, STKM12 (A, B, C), STKM13 (A, B, C), STKm14 (A, B, C)

OD: 19.05MM ~ 114,3 mm

WT: 2.0MM ~ 14 mm

Uzunlik: maksimal 16000mm

 

Jis G3445 mexanik naycha ishlab chiqarish usuli quyidagicha bo'lishi kerak:

Issiq tugagan po'latsiz po'latlamay naycha - -

Sovuq tugadi po'latsiz po'lat naychani - - c

ERW po'lat naychasi - e - g

Issiq tugatilgan erw po'lat naychasi - e -

Sovuq tugadi - e - c

Butt - payvandlangan po'lat naychasi - b

Sovuq tugadi {{0} - b - c

STKM11, STKM12, STKM13 va STKM14 ning kimyoviy tarkibi quyidagi jadvalda:

Baho Kimyoviy tarkib%
C Si Mn P S Nb yoki v
Stkm11a 0,12 dan kam yoki teng 0,35 dan kam yoki teng 0,60 dan kam yoki unga teng 0,040 dan kam yoki unga teng 0,040 dan kam yoki unga teng
STKM12A 0,20 dan kam yoki unga teng 0,35 dan kam yoki teng 0,60 dan kam yoki unga teng 0,040 dan kam yoki unga teng 0,040 dan kam yoki unga teng -
STKM12B
STKM12C
Stkm13a 0,25 dan kam yoki unga teng 0,35 dan kam yoki teng 0.30~
0.90
0,040 dan kam yoki unga teng 0,040 dan kam yoki unga teng -
STKM13b
STKM13C
STKM14A 0,30 dan kam yoki teng 0,35 dan kam yoki teng 0.30~
1.00
0,040 dan kam yoki unga teng 0,040 dan kam yoki unga teng -
STKM14B
STKM14C

STKM11, STKM12, STKM13 va STKM14ning mexanik xususiyatlari quyidagi jadvalda:

Baho Mexanik xususiyatlar Test sinovi Betish testi
Mustahkamlik chegarasi
(MPA)
Kuch berish kuchi
(MPA)
Cho'zish (%) Masofa
orasida
bu qismlar
(D =
Bukmoq
Burchak
Ichkarida
Radius
(D =
No 11: namuna
Stkm11a 230
(294)
- 235 1/2D 180 daraja 4D
STKM12A 235
(343)
218
(177)
235 2/3D 90 daraja 6D
STKM12B 240
(392)
228
(275)
225 2/3D 90 daraja 6D
STKM12C 248
(471)
236
(353)
220 - - -
Stkm13a; 238
(373)
222
(216)
230 2/3D 90 daraja 6D
STKM13b 245
(441)
231
(304)
220 3/4D 90 daraja 6D
STKM13C 252
(510)
239
(382)
215 - - -
STKM14A 242
(412)
225
(245)
225 3/4D 90 daraja 6D
STKM14B 251
(500)
236
(353)
215 7/8D 90 daraja 8D
STKM14C 256
(549)
242
(412)
215 - - -

Jis g3445 stkm12a / stkm12b naychasining tashqi diametri:

Yo'q 1: tashqi diametri qachon<50mm, tolerance 0.5mm;when outer diameter ≥50 mm,tolerance +/- 0.1mm;

Yo'q 2: tashqi diametri qachon<50mm, tolerance 0.25mm;when outer diameter ≥50 mm,tolerance +/- 0.5mm;

Yo'q 3: tashqi diametri qachon<25mm, tolerance 0.12mm;when 25mm ≤od ≥40 mm,tolerance +/- 0.15mm;

40 mm dan katta yoki teng bo'lsa, 50 mm dan katta yoki unga teng bo'lsa, mm mm.

info-400-400

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