Limestone Quarry Plant

One of the Top 500 enterprises in China foreign trade

QCCO was approved as a member of “China Association for Contracting Projects Abroad “and granted a membership certificate on Sep 28,2005; “Credibility Rating AAA certificate in Foreign Trade” was granted to QCCO by China Shippers’ Association

 
 

ASTM A333 Gr1 low temperature steel pipe

1.boiler tubes in Gr1 as per ASTM A333 standard.
2.Third inspection cert.
3.Mainly exported to Europe and Amercia market

Heat Treatment:

Option 1:Normalize by heating to a uniform temperature of not less than 815 cent the air or inigrade and cool in the cooling chamber of an atmosphere controlled furnance. And then, reheat to a suitable tempering temperature.

Option 2: For seamless only. Reheat and control hot working and temperature of the hot-finishing operation to a finishing temperature range from 845 centigrade to 945 centigrade and cool in air or in a controlled atmosphere furnace from an initial temperature of not less than 845 centigrade. And then, reheat to a suitable tempering temperature.

Preparation of the specimens:

1. Material from which specimens are to be taken will be heat treated prior to preparation of specimens.and will be taken from full thickness test pieces which have been stress relieved .

2. The test pieces will be gradually and uniformly heated to the prescribed temperature, held at that temperature for a period of time in accordance with following description and then furnace cooled at a temperature not exceeding 315 centigrade.

Metal Temperature(°C)

Min Holding Time(min/mm) of Wall Thickness

600

2.4

565

4.7

540

7.1

 

 Chemical composition:

 Steel Grade

C

Mn

P

S

Grade 1

0.30 max

0.40-1.06

0.025 max

0.025 max

 

 Mechanical Performance:

Steel Grade

Tensile strength

Min

Yield Strength

Min

Elongation  in 2in.or 50mm, min,%

Impact Requirements(10*10)(-45°C)

(psi)

(Mpa)

(psi)

(Mpa)

Longitudinal

Transverse

Min Average Notched Bar Impact Value of each set of three specimens

Min Notched Bar Impact Value of one specimen only of a set

Gr 1

55000

380

Min30000

205

35

25

18J

14J

 

 

Product Name:
Steel Pipes for Low Temperature Service
Low Temperature Seamless Steel Pipes

ASTM A333 Gr.1 Steel pipe

ASTM A333 Gr.3 Steel pipe

ASTM A333 Gr.6 Steel pipe

ASTM A333 Gr.1, 3, 6

ASTM A333 seamless pipe

ASTM A333 alloy pipes


2). Features:

 steel pipe for low temperature pipe
steel pipe for low temperature serviceA) Process method: Cold drawn/Hot rolled/Hot expansion

B) Surface finish: Varnish/Paint

3). Standard and steel grades available:
ASTM A333 Gr.1, 3, 6

4) Size:
A)NPS: 1/2" to 24"
B) Schedule: 10S, 20, 30, 40/40S, 60, 80/80S, 100, 120, 140, 160, STD, XS, XXS
C) O.D.: 21.3mm to 609.6mm
D) W.T.: 2.11mm to 60mm
E) Length: Max.12meters

5) Packing: Seaworthy in bundles
6) Inspection: Third Party
Tag : low carbon steel pipe, pipe fittings stainless steel, low carbon steel grades, ASTM A333 Gr.1, 3, 6


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