12X18H9T tape, sheet, round, wire

Purpose — welded equipment, blades, seals and other parts of power engineering, pipes, furnace parts fittings, heat exchangers, muffles, the details of exhaust systems, sheet and grooved parts; machines and vessels operating at temperatures from -196 to 600 °C under pressure and in the presence of corrosive environments up to 350 °C. corrosion resistant Steel, heat-resistant, austenitic.

Delivery form austenitic stainless steel 12KH18N9T:

  • stainless steel 12X18H9T
  • stainless steel wire 12X18H9T
  • tape stainless steel 12X18H9T
  • range of stainless steel 12X18H9T
  • sheet stainless steel 12X18H9T

Substitute — steel 10KH14G14N4T, 12H17G9AN4, 12X18H10T.

Delivery type — bars, including shapes: GOST 5949−75, GOST 2590−88, GOST 2591−88, GOST 2879−88. Rod calibrated GOST 7417−75, GOST 8559−75, GOST 8560−78. Brushed silver rod GOST 5949−75, GOST 14955−77, GOST 18907−73. A thick sheet of GOST 7350−77. Strip GOST 4405−75, GOST 103−76. Wire GOST 18143−72. Forgings and forged billets GOST 1133−71, GOST 25054−81.

Chemical composition, % (GOST 5632−72)

With Si Mn Cr Ni Ti S P Cu
No more No more
0,12 0,8 2,0 17,0−19,0 8,0−9,5 5 *S-0,8 0,020 0,035 0,30

Technological properties

Forging temperature, °C: beginning of 1200, the end 850. Cross-section up to 350 mm cooled in air.

Weldability — welded without restriction. Welding methods: SMAW electrodes CL-11, CT-15 (providing corrosion resistance), DH-26 (used as heat-resistant no requirements ICC), ESW. Recommended subsequent heat treatment.

Machinability — Kv TV. SPL = 0.85 and Kv b. St = 0.35 in the quenched state in HB 169 and σin = 610 MPa.

Heat resistance

Environment Temperature, °C Depth, mm/year Group resistance or score
Superheated steam 600 0,0018 2
The air 650 0,0022 2
The air 750 0,013 4

Corrosion resistance

A kind of corrosion Environment t ,°C Duration, h Points of resistance
Common Water containing 5 mg/kg Cl-, 0,3−6,0 mg/kg O2 350 1000 1
Sea water 20 3000 1
Point Sea water - 13000 3
Stress corrosion cracking Water containing 200mg/kg Cl-, 0,3−6,0 mg/kg O2 350 Destruction by 500−700 hours Tension above the yield limit
42%MgCl2 154 The destruction of 2−5 hours above the yield limit
Intergranular Steel is not inclined to the ICC when tested according to GOST 6032−89 methods AM and AMU, after quenching and tempering at 650 °C for 1H.

Mechanical properties

Gets Delivery condition Cross-section, mm σ0.2 MPa σin MPa δ5,% ψ,%
not less than
GOST 5949−75 Rod. Quenching with 1020−1100 °C in air, oil or water 60 196 540 40 55
GOST 18907−73 Polished rod treated to a given strength Rod full hard 1−30 To 5 _ - 540−880 935 20 — _ -
GOST 7350−77 The sheet hot rolled and cold rolled; quenched from 1030−1080 °C in water or air SV. 4 216 530 38 _
GOST 25054−81 Forging. Quenched from 1050−1100 °C in water or air Up to 1000 216 510 35 40
GOST 18143−72 Wire: heat-treated nagarebana 1−6 — — - 540−880 1080 20 — — -

Mechanical properties when tested for long-term strength

tCOI°C The creep strength, MPa The rate of creep, %/h tCOI°C The long-term strength, MPa τ, h
600 74−78 1/100000 550 186−235 10000



600 132−167



550 137−196 100000



600 98−127

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Igor

Igor

sales department

+7 (962) 383-76-36