Alloy Steel Pipe & Pipe Fittings

Alloy Steel Pipe and Pipe Fittings

How to define AS Pipes?

Alloy pipes are tubular in shape with a higher percentage of alloying elements than standard carbon steel pipes, such as Molybdenum (Mo), Chromium (Cr), Nickel, etc. The ASTM A335 standard offers specifications for low-alloy steel pipes, i.e. pipes containing fewer than 5% of the alloying element. The addition of additional alloying elements (example nickel and chromium) transforms low alloy steel into higher alloys, including stainless, duplex, up to super alloyed materials like Inconel, Hastelloy, Monel, and many others. Alloy steel pipes are commonly used in the energy industry for cryogenic applications (chemical processes with low temperatures) or applications in high pressurization.

Tips to find a trustable AS Pipe and Pipe Fittings supplier in India

To identify an authentic as pipe & pipe fittings supplier in India, you should consider these tips:

  • Look for alloy steel pipe & pipe fittings providers that have actually been in existence for some time in order to maximize the level of expertise as an outcome. Also, make sure you have looked at their certifications, to confirm that they have met the minimal requirements for the level of quality.
  • Ask for the stock information of the alloy steel pipe & pipe fittings which is applicable to your situation. They ought to have enough stock among their appliances to ensure that you can acquire the pipe and pipe fittings you require, without delay.
  • Read about the firm online and read past client testimonials. Try to find out whether the business is transparent in their dealings with clients. Look at their client servicing both online and offline.

AS Pipe & Pipe Fittings Grades And Specifications

Specification Alloy Steel Pipe Fittings
Thickness
Schedule 80, Schedule 160, Schedule 120, Schedule 140, Schedule 180, Schedule 5, Schedule 50, Schedule 40, Schedule 100, Schedule 60, Schedule 10 Manufacturer and Supplier
Dimensions & Standard
ANSI B16.11, MSS-SP-43, ASME B16.28, ASME/ANSI B16.9
Coating
Zinc Plated, Oil Black Paint, Cold and Hot Dip Galvanized, Anti-rust Paint, Yellow Transparent
Bending Radius
R=8D, 5D, 10D, 6D, 1D, 3D, 2D or Custom
Surface Treatment
Sandblasting, Sand Rolling, Sand Blasting
Grades
Alloy Steel
ASTM / ASME 201, 202, 301, 304, 304L, 310, 310S, 316L, 316TI, 317, 317L, 321, 347, 409, 409M, 409L, 410, 410S, 420, 430, 431, 441, 444, 446, 17.4PH, 904L
Alloy Steel
ASTM / ASME A 691 GR P1CR, 1 1/4CR, 2 1/4CR, 5CR, 9CR , 91.

AS Seamless Pipes Equivalent Grades

Name Temper Specification
Alloy 4130
N
MILT6736, AMS6360, AMS6371
Alloy 4140
N,A, T
AMS6381
Alloy 15CDV6
T1080, T980
AIR9160C, 1.7734.5, 1.7734.6
Types Wall thickness Out diameter Length
NB Sizes (in stock)
Schedule 5 / 10 / 40 / 80 / 160
1/8” ~ 8”
6m
Carbon Steel Welded Pipes Suppliers(in Stock + Custom Sizes)
1.0 ~ 15.0 mm
5.0mm ~ 1219.2mm
6m
API 5L Carbon Steel Seamless Pipes Suppliers(Custom Sizes)
As per requirement
5.0mm ~ 203.2mm
6m

Countries We Supply Alloy Steel Pipe & Pipe Fittings To

Steelco Metal & Alloys supply and distribute AS Pipe & Pipe Fittings to countries like

US United States

Europe Europe

Middle East Middle East

Africa Africa

and more…

CUTTING

Industrial Application of AS Pipe & Pipe Fittings

AS pipe & Pipe Fittings are highly versatile and have excellent structural stability and corrosion properties. As a result, it can be used across a wide range of industries, such as:

AS Chrome Moly Pipes Outside Diameter & Tolerance

Grade Tensile Strength Min(Mpa) Yield Point Min(Mpa) Rockwell Max
ASTM A450
Hot rolled
Outside Diameter, mm
Tolerance, mm
OD≤101.6
+0.4/-0.8
101.6<OD≤190.5
+0.4/-1.2
190.5<OD≤228.6
+0.4/-1.6
Cold Drawn
Outside Diameter, mm
Tolerance, mm
OD<25.4
±0.10
25.4≤OD≤38.1
±0.15
38.1<OD<50.8
±0.20
50.8≤OD<63.5
±0.25
63.5≤OD<76.2
±0.30
76.2≤OD≤101.6
±0.38
101.6<OD≤190.5
+0.38/-0.64
190.5<OD≤228.6
+0.38/-1.14
ASTM A530 & ASTM A335
NPS
Outside Diameter, inch
Tolerance, mm
1/8≤OD≤1-1/2
±0.40
1-1/2<OD≤4
±0.79
4<OD≤8
+1.59/-0.79
8<OD≤12
+2.38/-0.79
OD>12
±1%

ASTM SA335 AS Pipes Custom Pipes Wall thickness

Grade Tensile Strength Min(Mpa) Yield Point Min(Mpa) Rockwell Max
STM A450
Hot rolled
Outside Diameter, mm
Tolerance, %
OD≤101.6, WT≤2.4
+40/-0
OD≤101.6, 2.4<WT≤3.8
+35/-0
OD≤101.6, 3.8<WT≤4.6
+33/-0
OD≤101.6, WT>4.6
+28/-0
OD>101.6, 2.4<WT≤3.8
+35/-0
OD>101.6, 3.8<WT≤4.6
+33/-0
OD>101.6, WT>4.6
+28/-0
Cold Drawn
Outside Diameter, mm
Tolerance, %
OD≤38.1
+20/-0
OD>38.1
+22/-0
ASTM A530
NPS
Outside Diameter, inch
Tolerance, %
1/8≤OD≤2-1/2
+20.0/-12.5
3≤OD≤18, WT/OD≤5%
+22.5/-12.5
3≤OD≤18, WT/OD>5%
+15.0/-12.5
OD≥20, WT/OD≤5%
+22.5/-12.5
OD≥20, WT/OD>5%
+15.0/-12.5

ASTM/ASME SA312 AS Pipe Fittings Dimension

Alloy Steel Pipe Fittings Diameter, Inches Wall Thickness Inches Weight Lbs./Ft. 304/304L 316/316L
Size Inches
OD
ID
1/8
0.405
0.215
0.095
0.314
X
X
1/4
0.540
0.302
0.119
0.535
X
X
3/8
0.675
0.423
0.126
0.738
X
X
1/2
0.840
0.546
0.147
1.088
X
X
3/4
1.050
0.742
0.154
1.474
X
X
1
1.315
0.957
0.179
2.172
X
X
1-1/4
1.660
1.278
0.191
2.997
X
X
1-1/2
1.900
1.500
0.200
3.631
X
X
2
2.375
1.939
0.218
5.022
X
X
2-1/2
2.875
2.323
0.276
7.661
X
X
3
3.500
2.900
0.300
10.250
X
X
3-1/2
4.000
3.364
0.318
12.500
X
X
4
4.500
3.826
0.337
14.980
X
X
5
5.563
4.813
0.375
20.780
X
X
6
6.625
5.761
0.432
28.570
X
X
8
8.625
7.625
0.500
43.390
X
X

Types of ASME SA312 AS Pipe Fittings

Types Out diameter Wall thickness Length
NB Sizes (in stock)
1/8” ~ 8”
5 / 10 / 40 / 80 / 160
Up to 6 Meters
Alloy Steel Seamless Pipe (Custom Sizes)
5.0mm ~ 203.2mm
As per requirement
Up to 6 Meters
Alloy Steel Welded Pipe (in Stock + Custom Sizes)
5.0mm ~ 1219.2mm
1.0 ~ 15.0 mm
Up to 6 Meters

AS Pipe & Pipe Fittings Useful Information

Chemical Composition

ASTM A335 Low-Alloy Steel (Grades) UNS equivalent C≤ Mn P≤ S≤ Si≤ Cr Mo
P1
K11522
0.10~0.20
0.30~0.80
0.025
0.025
0.10~0.50
0.44~0.65
P2
K11547
0.10~0.20
0.30~0.61
0.025
0.025
0.10~0.30
0.50~0.81
0.44~0.65
P5
K41545
0.15
0.30~0.60
0.025
0.025
0.5
4.00~6.00
0.44~0.65
P5b
K51545
0.15
0.30~0.60
0.025
0.025
1.00~2.00
4.00~6.00
0.44~0.65
P5c
K41245
0.12
0.30~0.60
0.025
0.025
0.5
4.00~6.00
0.44~0.65
P9
S50400
0.15
0.30~0.60
0.025
0.025
0.50~1.00
8.00~10.00
0.44~0.65
P11
K11597
0.05~0.15
0.30~0.61
0.025
0.025
0.50~1.00
1.00~1.50
0.44~0.65
P12
K11562
0.05~0.15
0.30~0.60
0.025
0.025
0.5
0.80~1.25
0.44~0.65
P15
K11578
0.05~0.15
0.30~0.60
0.025
0.025
1.15~1.65
0.44~0.65
P21
K31545
0.05~0.15
0.30~0.60
0.025
0.025
0.5
2.65~3.35
0.80~1.60
P22
K21590
0.05~0.15
0.30~0.60
0.025
0.025
0.5
1.90~2.60
0.87~1.13
P91
K91560
0.08~0.12
0.30~0.60
0.02
0.01
0.20~0.50
8.00~9.50
0.85~1.05
P92
K92460
0.07~0.13
0.30~0.60
0.02
0.01
0.5
8.50~9.50
0.30~0.60

Mechanical Properties

Hardness
A335 Low-Alloy Pipe
UNS Number
Yield Strength ksi
Tensile Strength ksi
Elongation %
Rockwell
Brinell
P1
K11522
30
55
30
P2
K11547
30
55
30
P5
K41545
40
70
30
207 max
P9
S50400
30
60
30
P11
K11597
30
60
20
P12
K11562
32
60
30
174 max
P22
K21590
30
60
30
P91
K91560
60
85
20

Benefits of AS Pipe & Pipe Fittings

High Strength

Alloy steels made from the chemical composition of molybdenum (Mo) and chromium (Cr), Molybdenum increases the strength of steel, the impact qualities, elasticity, and hardness. Chromium increases steel’s tensile strength, yield, and hardness. The composition chromium-molybdenum alloy pipe is used in gas and oil service centers, petroleum refineries, power plants, and refineries where corrosive substances can be highly pressurized and high temperatures are present.

Low Expansion 

Some steel alloys have a low rate of thermal expansion or a stable expansion pattern at room temperature and near freezing temperatures. Because of this, they may be suitable for use in pipes which have a fixed size and shape regardless of hot or cold environments.

Magnetic Permeability

Alloy steels have unique and useful magnetic permeability properties, which has led to their utilization in constructions of switchgears, DC motors, and generators.

Competitive Advantage of Steelco Metal & Alloys

Company Services
We enhance our industry operations by relieving you of the worries associated with freight forwarding.

An integrated approach to providing engineering services allows our clients to benefit from the commercial and logistical advantages.

We are one of the Nations largest automotive parts recyclers and a widely recognized leader utilizing advanced computerized techniques.
We’ll work with you on your project, large or small. Together we’ll fine-tune your new construction, remodeling or renovation plans.

FAQ

Alloy pipes are tubular in shape with a higher percentage of alloying elements than standard carbon steel pipes, such as Molybdenum (Mo), Chromium (Cr), Nickel, etc. The ASTM A335 standard offers specifications for low-alloy steel pipes, i.e. pipes containing fewer than 5% of the alloying element.
The high-strength alloy steel fittings are commonly used in applications that require pipes to stand up to high-pressure levels. The toughness of these fittings allows them to stand the strain better than standard fittings.
AS Pipes are in different specifications like : MILT6736, AMS6360, AMS6371, AMS6381, AIR9160C, 1.7734.5, 1.7734.6 and it is available in Grades ASTM / ASME 201 to 910L.

Price of alloy steel pipe varies according to the thickness, size and other properties. To know more about price contact us

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    Product in all Sizes.
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    We can assure you the best quality products.

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