Silver Tubes is an established manufacturer, exporter, and supplier of ASTM A335 P5 alloy steel seamless pipes and ASTM A691 P5 EFW pipes. Available in various sizes, dimensions, and specifications, these pipes are designed for demanding industrial applications, including power generation, petrochemical plants, refineries, and high-temperature piping systems. The product range includes seamless, welded, SAW, LSAW, and DSAW pipes, depending on project requirements. Silver Tubes supplies quality alloy steel pipes to meet customer specifications and industrial standards.
SILVER TUBES, a reliable group of companies is one of the professional manufacturers and suppliers in India and abroad. We are fully supplying channel to offer you the products varying from the stainless steel, alloy steel, and ASTM alloys and also include the special steel in form of EFW pipes. We provide the complete business solution along with reliabilities, efficiency, and creativeness to the World. We supply our products in many industries like oil and gas industries, power plants, food industries, etc.
About ASTM and our products:
ASTM established in 1898 and it is one of
the worlds largest international standards developing organizations. The different standard
has a variety of categories which include-
Standard Specification
Standard Test Method
Standard Practice Guide
Standard Classification
Terminology Standard
ASTM A 335/ A691 GR P5 Alloy Steel Seamless & EFW Pipes are manufactured with the alloy of ASTM A 335/ A 691 GR P5 alloy. These alloys provide the desired properties and mostly used in many applications. These alloys are covered carbon and alloy steel alloy which includes many things such as electric-fusion-welded, fabricated from pressure- vessel- quality plates, their strength levels are suitable in high-pressure service at high temperatures. Mechanical and chemical properties of these alloys are excellent and fulfill all the requirements of many industries. Silver tubes focus each step of the manufacturing and provide the international standard ASTM A335/ A691 GR P5 Alloy Steel Seamless & EFW Pipes products in the market.
Specification Parameter Details Product Name ASTM A335 / A691 Grade P5 Alloy Steel Pipes Material Grade P5 Pipe Types Seamless and EFW Seamless Pipe Sizes 1/2" NB to 24" NB Wall Thickness Schedule 20 to Schedule XXS; heavier thickness available on
request, up to 250 mm as specified Manufacturing Standards ASTM A335 / ASME SA335 for seamless pipes; ASTM A691 for EFW
pipes Additional Testing NACE MR0175, H₂ Service, IBR, etc. Dimensions As per applicable ASTM/ASME dimensional standards P5, P9, P11, and P22 Grade Heat Treatment Type Normalizing Temperature Range F [C] Subcritical Annealing P5 (b,c) Full or Isothermal Anneal Normalize and Temper ***** 1250 [675] Subcritical Anneal (P5c only) ***** 1325 - 1375 [715 - 745] P9 Full or Isothermal Anneal Normalize and Temper ***** 1250 [675] P11 Full or Isothermal Anneal Normalize and Temper ***** 1200 [650] P22 Full or Isothermal Anneal Normalize and Temper ***** 1250 [675] P91 Normalize and Temper 1900-1975 [1040 - 1080] 1350-1470 [730 - 800] Quench and Temper 1900-1975 [1040 - 1080] 1350-1470 [730 - 800]ASTM A335/ A691 GR P5 Alloy Steel Seamless & EFW Pipes Specification
ASTM A 335 GR P5 Heat Treatment Requirements
or
Tempering
Temperature Range F
[C]
ASTM A 335 GR P5 Chemical Requirements
Grade
P-5
P-9
P-11
P-22
P-91
P-91
shall also include the following:
Element
UNS Designation
K41545
S50400
K11597
K21590
K91560
Carbon
0.15 max
0.15 max
0.05 - 0.15
0.05 - 0.15
0.08 - 0.12
V at 0.18 - 0.25
Manganese
0.30 - 0.60
0.30 - 0.60
0.30 - 0.60
0.30 - 0.60
0.30 - 0.60
N at 0.030 - 0.070
Phosphorous, max
0.025
0.025
0.025
0.025
0.020
Ni at 0.40 max
Sulfur, max
0.025
0.025
0.025
0.025
0.010
Al at 0.02 max
Silicon
0.50 max
0.25 - 1.00
0.50 - 1.00
0.50 max
0.20 -0.50
Cb at 0.06 - 0.10
Chromium
4.00 - 6.00
8.00 - 10.00
1.00 - 1.50
1.90 - 2.60
8.00 - 9.50
Ti at 0.01 max
Molybdenum
0.45 -0.65
0.90 - 1.10
0.44 - 0.65
0.87 - 1.13
0.85 - 1.05
Zr at 0.01 max
ASTM A 335 GR P5 Tensile Requirements
Seamless
P-5
P-9
P-11
P-22
P-91
P91 shall not have a hardness
not exceeding 250 HB/265 HV [25HRC].
Tensile Strength, min., psi
ksi
60
60
60
60
85
MPa
415
415
415
415
585
Yield Strength, min., psi
ksi
30
30
30
30
60
MPa
205
205
205
205
415
ASTM A 335 GR P5 Permissible Variation in Wall Thickness
NPS [DN]
Designator
Tolerance, % from
Specified
Over
Under
1/8 to 2 1/2 [6 to 65] incl., all t/D
ratios
20.0%
12.5%
Above 2 1/2 [65], t/D < or = 5%
22.5%
12.5%
Above 2 1/2 [65], t/D > 5%
15.0%
12.5%
(t
= Specified Wall Thickness; D = Specified Outside
Diameter)