Sign In | Join Free | My disqueenfrance.com
China TORICH INTERNATIONAL LIMITED logo
TORICH INTERNATIONAL LIMITED
TORICH INTERNATIONAL LIMITED The Steel Tube Maker
Verified Supplier

10 Years

Home > Seamless Steel Tube >

TORICH GB/T 18984 Seamless Steel Tubes For Low Temperature Service Piping

TORICH INTERNATIONAL LIMITED
Trust Seal
Verified Supplier
Credit Check
Supplier Assessment

TORICH GB/T 18984 Seamless Steel Tubes For Low Temperature Service Piping

Brand Name : TORICH

Model Number : GB/18984

Certification : ISO 9001,ISO 14001,TS 16949

Place of Origin : China

MOQ : 3 Ton

Price : negotiable

Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram

Supply Ability : 50000 tons/year

Delivery Time : 30 days

Packaging Details : In plywood case,In wooden box.

Keyword : Seamless Steel Tubes For Low-Temperature-Service Piping

Type : Seamless Steel Tubes

Surface : Oiled

Material : 16MnDG,10MnDG,09DG,09Mn2VDG,06Ni3MoDG

Shape : Round

Length : 4-12M

OD : 5-450mm

WT : 0.5-50mm

Contact Now

TORICH GB/T 18984 Seamless Steel Tubes For Low-Temperature-Service Piping


Application:For Low-Temperature-Service Piping

Material:16MnDG,10MnDG,09DG,09Mn2VDG,06Ni3MoDG
Unit:mm

Hot Roll(Extrusion,Expansion)Steel TubeCold Drawn(Roll) Steel Tube
DiamensionToleranceDiamensionTolerance
Ordinary Level PAHigh Level PCOrdinary Level PAHigh Level PC

Nominal Outer Diameter
D

<76.1±1.25%D±0.60

Nominal Outer Diameter
D

<12.7±0.30±0.10
76.1~<139.7±0.8012.7~<38.1±0.30±0.15
139.7~<273.1±1.5%D±1.2038.1~<88.9±0.40±0.30
88.9~<139.7±0.9%D±0.40
273.1~<323.9±1.60139.7~<203.2±0.80
203.2~<219.1±1.10
≥323.9±0.6%D219.1~<323.9±1.60
≥323.9±0.5%D

Nominal Wall Thinckness
S

All Wall Thickness

+15%S
-12.52%S

±12.5%S

Nominal Wall Thinckness
S

All Wall Thickness

+12.5%S
-10%S

±10%S


Permissible deviation tolerance of OD and WT

ClassficationSteel sizePermissible tolerance
W-HOD<351±1.0%D
≥351±1.25%D
WT≤25±12.5%S
W-COD≤30±0.20
>30~50±0.30
>50±0.75%D
WT≤3

+12.5%S
-10%S

>3±10%S




Steel grade and chemical composition

Steel gradeChemical composition/%
CSiMnPSNiMoV
16MnDG0.12~0.200.20~0.551.20~1.60≤0.025≤0.025
10MnDG≤0.130.17~0.37≤1.35≤0.025≤0.025≤0.07
09DG≤0.120.17~0.37≤0.95≤0.025≤0.025≤0.07
09Mn2VDG≤0.120.17~0.37≤1.85≤0.025≤0.025≤0.12
06Ni3MoDG≤0.080.17~0.37≤0.85≤0.025≤0.025≤0.05


Longitudinal mechanical properties of steel tubes

Steel grade

Tensile strength
TORICH GB/T 18984 Seamless Steel Tubes For Low Temperature Service Piping/
MPa

Lower yield strength Rp0.2/MPaElongation A/
S≤16mmS>16mmSample 1Sample 2Sample 3
16MnDG490~665≥325≥315≥30
10MnDG≥400≥240≥35
09DG≥385≥210≥30
09Mn2VDG≥450≥300≥30
06Ni3MoDG≥455≥250≥30


Testing items and sampling quantity of steel tubes

NumberTesting itemsSampling quantity
1Chemical composition1 sample from each furnace
2Tensile test1 sample from each of two steel tubes on each batch
3Hardness test1 sample from each of two steel tubes on each batch
4Ultrasonic testingALL
5Hydraulic testALL



TORICH GB/T 18984 Seamless Steel Tubes For Low Temperature Service Piping
TORICH GB/T 18984 Seamless Steel Tubes For Low Temperature Service Piping


TORICH GB/T 18984 Seamless Steel Tubes For Low Temperature Service Piping


























Product Tags:

seamless steel pipe

      

seamless carbon steel tube

      
China TORICH GB/T 18984 Seamless Steel Tubes For Low Temperature Service Piping wholesale

TORICH GB/T 18984 Seamless Steel Tubes For Low Temperature Service Piping Images

Inquiry Cart 0
Send your message to this supplier
 
*From:
*To: TORICH INTERNATIONAL LIMITED
*Subject:
*Message:
Characters Remaining: (0/3000)
 
Inquiry Cart 0