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ASTM A333GR6 Seamless Steel Pipe

Payment Type: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,FCA,CPT
Min. Order: 1 Piece/Pieces
Delivery Time: 25 Days

Basic Info

Material: Carbon Steel

Connection: Flange

Additional Info

Productivity: 50000 Tons

Brand: GH

Transportation: Ocean,Land,Air

Place of Origin: China

Supply Ability: 50000 Tons

Certificate: IS0/API/PED/QTY/CE

HS Code: 7307

Port: Tianjin,Qingdao,Shanghai

Product Description



5            ASTM A333 GRADE 6 SEAMLESS PIPES FOR LOW TEMPERATURE SERVICES

ASTM A333 (ASME S/A-333) Pipe grades permit low temperature service. This specification covers nominal (average) walled pipe almost exclusively in seamless.  Several grades of ferritic steel are included. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse effect on low-temperature impact properties. A333 pipe is furnished to nine different grades designated by numbers 1, 3, 4, 6, 7, 8, 9, 10, & 11. 

ASTM A333 Grade 6 is the part of standard covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. ASTM A333 Grade 6 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.

ASTM A333 Grade 6 is the part of standard covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. ASTM A333 Grade 4 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.

A333 SPECIFICATION

Stockist, Suppliers and Exporter of ASTM A333 Gr 6, Low Temperature, PIPE in India

  • Steel Grade : ASTM A333 Grade 6
  • Length : 5000 mm - 7000 mm, 10000 mm - 12000 mm or as per Client Requirement.
  • Outside Diameter : 1/2" to 42" - Seamless
  • Outside Diameter : 14" to 100" - Welded
  • Wall Thickness : 2.00 mm to 100.00 mm
  • Origin : USA, Japan, Europe, India, Korea.
  • Delivery Terms : Max 1 week (All From Stock)

SCOPE

This specification covers nominal (average) wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures and in other applications requiring notch toughness. Several grades of ferritic steel are included as listed. Some product sizes may not be available under this specification because heavier wall thickness have an adverse effect on impact properties.

The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system may not be excat equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

HEAT TREATMENT

All seamless and welded pipe shall be treated to control their microstructure by the following methods: Normalizing per A 333/A 333M-05 section 4.2.1.1; section 4.2.1.2 or section 4.2.1.3 Quenched and Tempered per A 333/A 333M – 05 section 4.2.2.1 Double Normalized and Tempered per A 333/A 333M – 05 section 4.2.2.2

CHEMICAL COMPOSITION

Element
Grade 6
Carbon, max 0.30
Manganese 0.29-1.06
Phosphorus, max 0.025
Sulphur, max 0.025
Silicon 0.10 min
Nickel 0.40 max
Chromium 0.30 max
Copper 0.40 max
Aluminum --
Vanadium, max 0.08
Columbium, max 0.02
Molybdenum, max 0.12

For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% would be permitted to a maximum of 1.35% manganese.

TENSILE REQUIREMENT

 
Grade 6
 
psi
MPa
Tensile strength Min
60 000
415
Yield strength Min
35 000
240
  Longitudinal Transverse
Elongation in 2 in or 50 mm (or 4D), min, %    
Basic minimum elongation for walls 5/16 in. [8mm] and over in thickness, strip tests, and for all small sizes tested in full section. 30 16.5
When standard round 2-in, or 50-mm gage length or proportionally smaller size test specimen with the gage length equal to 4D (4 times the diameter) is used 22 12
For strip tests, a deduction for each 1/32 in [0.8 mm] decrease in wall thickness below 5/16 in [8 mm] from the basic minimum elongation of the following percentage 1.50 1.00

 Elongation in 2 in or 50 mm, min, %

Wall Thickness
Grade 6
in
mm
Longitudinal
Transverse
5/16 (0.312) 8 30 16
9/32 (0.281) 7.2 28 15
1/4 (0.250) 6.4 27 15
7/32 (0.219) 5.6 26 --
3/16 (0.188) 4.8 24 --
5/32 (0.156) 4 22 --
1/8 (0.125) 3.2 21 --
3/32 (0.094) 2.4 20 --
1/16 (0.062) 1.6 18 --

 IMPACT REQUIREMENTS

Size of Specimen
Minimum Average Notched Bar Impact Value of Each Set of Three Specimen
Minimum Notched Bar Impact Value of One Specimen only a Set
 
ft-lbf
J
ft-lbf
J
10 by 10 13 18 10 14
10 by 7.5 10 14 8 11
10 by 6.67 9 12 7 9
10 by 5 7 9 5 7
10 by 3.33 5 7 3 4
10 by 2.5 4 5 3 4
Straight line interpolation for intermediate values is permitted.

 IMPACT TEMPERATURE

Grade
Minimum Impact Test Temperature
°F
°C
1
-50
-45
3
-150
-100
4
-150
-100
6
-50
-45
7
-100
-75
8
-320
-195
9
-100
-75
10
-75
-60
11
-320
-195

 MECHANICAL TESTING

Transverse or Longitudinal Tension Test and Flattening Test, Hardness Test, or Bend Test For material heat treated in a batch-type furnace, tests shall be made on 5% of the pipe from each treated lot. For small lots, at least one pipe shall be tested. For material heat treated by the continuous process, tests shall be made on a sufficient number of pipe to constitute 5% of the lot, but in no case less than 2 pipe. Hydrostatic Test Impact Test One notched bar impact test, consisting of breaking three specimens shall be made from each heat represtented in a heat-treatment load on specimens taken from the finished pipe.

HEAT TREATMENT REQUIREMENTS

All seamless and welded pipe shall be treated to control their microstructure by the following methods: Normalizing per A 333/A 333M-05 section 4.2.1.1; section 4.2.1.2 or section 4.2.1.3 Quenched and Tempered per A 333/A 333M – 05 section 4.2.2.1 Double Normalized and Tempered per A 333/A 333M – 05 section 4.2.2.2

IMPACT TEMPERATURE REDUCTION

Specimen Width Along Notch or Actual Material Thickness
Temperature Reduction , Degrees Colder
in
mm
°F
°C
0.394 10 (standard size) 0 0
0.354 9 0 0
0.315 8 0 0
0.295 7.5 (3/4 std. size) 5 3
0.276 7 8 4
0.262 6.67 (2/3 std. size) 10 5
0.236 6 15 8
0.197 5 (1/2 std. size) 20 11
0.158 4 30 17
0.131 3.33 (1/3 std. size.) 35 19
0.118 3 40 22
0.099 2.5 (1/4 std. size) 50 28
Straight line interpolation for intermediate values is permitted.