24 Hour Emergency Steel Machining Response

DIN 1629 ST44.0 seamless circular tubes of non alloys steels with special quality requirements

DIN 1629 ST44.0 seamless circular tubes of non alloys steels with special quality requirements

DIN 1629 ST44.0 seamless circular tubes of non alloys steels with special quality requirements Chemical Composition and Mechanical Property

DIN 1629 ST44.0 seamless circular tubes chemical composition:

Steel Grade

Type of deoxidization
(R, killed (including semi-killed)) (RR,fully killed)

Chemical Composition, % by mass

Symbol

Material Number

C

P

S

N¹)

Addition of nitrogen fixing elements
(e.g.not less than 0,020% Al total

St44.0

1.0255

R

0.21

0.040

0.040

0.009²)

-

DIN 1629 ST44.0 seamless circular tubes mechanical property:

Steel Grade

Upper Yield Stress ReH
for wall thickness, in mm,

Tensile strength
Rm
N/mm²

Elongation(%) A5

Symbol

Material Number

up to 16

over 16 up to 40

over 40 up to 65

Longitudinal

Transverse

St 44.0

1.0256

275¹)

265¹)

255¹)

420²) to 550

21

19

¹) For cold f inished tube in the NBK condition (annealed above the upper transformation point under shielding gas or in a vacuum), minimum values of yield stress lower than these valued by 20N/mm² are permitted.
²) For cold finished tubes in the NBK condition, minimum values of tensile strength lower than these values by 10N/mm² are permitted.

DIN 1629 ST44.0 seamless circular tubes of non alloys steels with special quality requirements Application

DIN 1629 ST44.0 seamless circular tubes are prodominantly used in construction of chemical plant, vessels, pipework and for genearl mechanical engineering purpose.

DIN 1629 ST44.0 seamless circular tubes of non alloys steels with special quality requirements Other Name

DIN 1629 ST44.0 seamless steel pipe, DIN ST44.0 Steel Pipe, DIN 1629 ST44.0 seamless carbon steel pipe and tube

Additional Condition

UT(Ultrasonic examination), AR(As Hot Rolled only), TMCP(Thermal Mechanical Control Processing), N(Normalized), Q+T(Quenched and Tempered),Z Direction Test(Z15,Z25,Z35), Charpy V-Notch Impact Test, The Third Party Test (such as SGS Test), Coated or Shot Blasting and Painting.

Other Terms

Packaging Details: Standard export seaworthy packing or as required.
Delivery Time: 30-50 days, 7 days for stock goods.
Loading Port: Shanghai ,Tianjin, Qingdao.
Offer Ability:5 000MT/Per Month.
MOQ: 1 Pcs.
Are you also interested in further steel processing (machining)?

Just like you, 70% customers choose long-term cooperation with BBN steel not only for our good product and service quality, good reputation in the international market, but also for our experienced one-stop raw material supply and further steel processing!

Fabrication and Machining Service24h Technical support

Contact Us

Henan BEBON Iron&Steel co.,ltd.

Send Order Request