ASTM A335

ASTM-A335-STEEL-PIPE

ASTM A335

At UNIACERO, we pride ourselves on offering the finest ASTM A335 seamless ferritic alloy-steel pipes designed for high-temperature applications. Engineered for resilience, these pipes are optimal for bending, flanging, fusion welding, and a myriad of forming operations. Our pipes not only meet but often exceed the requirements of the ASTM A335 standard, ensuring top-tier performance for your operations. Rely on our expertise to provide you with pipes that are synonymous with quality and reliability.

ASTM A335 Specification

Our ASTM A335 steel pipes exhibit the highest standards in dimensions, production procedures, steel grades, and more. They are furnished with specialized surface coatings that ensure durability and longevity. The pipes come in varied end types, tailored to the needs of different industries. With advanced joint methods and superior machining services on offer, we ensure that every pipe is of unparalleled standard, catering to the unique requirements of our esteemed clientele.

StandardASTM A335
ProcedureSMLS
Dimensions21.3mm – 610mm
1/2″ – 24″
DN15 – DN600
Thickness3.2mm – 76mm
SCH 10 -SCH 160
Unit Length6 meters, 12 meters or customized.
Steel GradeASTM A335 P1ASTM A335 P5cASTM A335 P15ASTM A335 P91
ASTM A335 P2ASTM A335 P9ASTM A335 P21ASTM A335 P92
ASTM A335 P5ASTM A335 P11ASTM A335 P22ASTM A335 P122
ASTM A335 P5bASTM A335 P12ASTM A335 P23ASTM A335 P911
Surface CoatingVarnishing, Black, Oiling, Hot Dip Galvanizing
End TypeSquare cut, Bevelled, Threaded, Grooved
Joint MethodFitting, Flange, Coupling, Clamp, Pipe Shoulder, Welding
Pipe MachiningWelding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

ASTM A335 Dimension Table

schematic-diagram-of-pipe-dimension

Our ASTM A335 pipes have been meticulously designed to conform to international standards. Each dimension reflects careful engineering aimed at meeting the demanding needs of high-temperature service. We ensure the integrity and precision of each dimension, from diameter to wall thickness, promising our clients a product that fits seamlessly into their operations.

Steel Pipe Dimensions Chart ANSI B36. 10 & 36.19
Nominal Pipe SizeOutside Diameter (mm)Nominal Wall Thickness Schedule
NPSDNODSCH 20SCH 30SCH SthSCH 40SCH 60SCH XSSCH 80SCH 100SCH 120SCH 140SCH 160SCH XXS
1/8610.31.451.731.732.412.41
1/4813.71.852.242.243.023.02
3/81017.11.852.312.313.203.20
1/21521.32.412.772.773.733.734.787.47
3/42026.72.412.872.873.913.915.567.82
12533.42.93.383.384.554.556.359.09
1 1/43242.22.973.563.564.854.856.359.70
1 1/24048.33.183.683.685.085.087.1410.15
25060.33.183.913.915.545.548.7411.07
2 1/265734.785.165.167.017.019.5314.02
38088.94.785.495.497.627.6211.1315.24
3 1/290101.64.785.745.748.088.08
4100114.34.786.026.028.568.5611.1313.4917.12
5125141.36.556.559.539.5312.7015.8819.05
6150168.37.117.1110.9710.9714.2718.2621.95
8200219.16.357.048.188.1810.3112.7012.7015.0918.2620.6223.0122.23
10250273.06.357.809.279.2712.7012.7015.0918.2621.4425.4028.5825.40
12300323.86.358.389.5310.3114.2712.7017.4821.4425.4028.5833.3225.40
14350355.67.929.539.5311.1315.0912.7019.0523.8327.7931.7535.71
16400406.47.929.539.5312.7016.6612.7021.4426.1930.9636.5340.49
184504577.9211.139.5314.2719.0512.7023.8329.3634.9339.6745.24
205005089.5312.709.5315.0920.6212.7026.1932.5438.1044.4550.01
225505599.5312.709.5322.2312.7028.5834.9341.2847.6353.98
246006109.5314.279.5317.4824.6112.7030.9638.8946.0252.3759.54
2665066012.709.5312.70
2870071112.7015.889.5312.70
3075076212.7015.889.5312.70
3280081312.7015.889.5317.4812.70
3485086412.7015.889.5317.4812.70
3690091412.7015.889.5319.0512.70
389509659.5312.70
40100010169.5312.70
42105010679.5312.70
44110011189.5312.70
46115011689.5312.70
48120012199.5312.70

Chemical Requirements of ASTM A335

For us, quality is paramount. Every batch of our ASTM A335 pipes undergoes stringent chemical analysis to ensure that they meet and often exceed the required compositions. The pipes boast a well-balanced mix of elements, providing them with the strength and resilience that our clients have come to expect from us.

Chemical Requirements
GradeUNS DesignationAComposition, %
CarbonManganesePhosphorus maxSulfur maxSiliconChromiumMolybdenumOthers
P1K115220.10–0.200.30–0.800.0250.0250.10–0.50. . .0.44–0.65
P2K115470.10–0.200.30–0.610.0250.0250.10–0.300.50–0.810.44–0.65
P5K415450.15 max0.30–0.600.0250.0250.50 max4.00–6.000.45–0.65
P5bK515450.15 max0.30–0.600.0250.0251.00–2.004.00–6.000.45–0.65
P5cK412450.12 max0.30–0.600.0250.0250.50 max4.00–6.000.45–0.65-B
P9S504000.15 max0.30–0.600.0250.0250.25– 1.008.00– 10.000.90– 1.10
P11K115970.05–0.150.30–0.600.0250.0250.50– 1.001.00– 1.500.44–0.65
P12K115620.05–0.150.30–0.610.0250.0250.50 max0.80– 1.250.44–0.65
P15K115780.05–0.150.30–0.600.0250.0251.15– 1.65. . .0.44–0.65
P21K315450.05–0.150.30–0.600.0250.0250.50 max2.65–3.350.80– 1.06
P22K215900.05–0.150.30–0.600.0250.0250.50 max1.90–2.600.87– 1.13
P23K416500.04–0. 100.10–0.600.030 max0.010 max0.50 max1.90–2.600.05–0.30V 0.20–0.30 Cb 0.02–0.08 B 0.0005–0.006 N 0.030 max AI 0.030 max W 1.45-1.75
P91K915600.08–0.120.30–0.600.020.010.20–0.508.00–9.500.85– 1.05V 0. 18–0.25 N 0.03–0.07 Ni 0.40 max Al 0.04 max Cb 0.06–0.10
P92K924600.07–0.130.30–0.600.020.010.50 max8.50-9.500.30-0.60V 0. 15–0.25 N 0.03–0.07 Ni 0.40 max Al 0.04 max Cb 0.04–0.09 W 1.5–2.00 B 0.001–0.006
P122K929300.07–0.140.70 max0.020.010.50 max10.00-12.500.25-0.60V 0.15–0.30 W 1.50–2.50 Cu 0.30– 1.70 Cb 0.04–0.10 B 0.0005–0.005 N 0.040–0. 100 Ni 0.50 max Al 0.040 max
P911K910610.09–0.130.30–0.600.020 max0.01 max0.10-0.508.50-10.500.90-1.10V 0.18–0.25 Ni 0.40 max Cb 0.060–0.10 B 0.0003–0.006 N 0.04–0.09 Al 0.04 max W 0.90– 1.10
A New designation established in accordance with Practice E 527 and SAE J1086, Practice for Numbering Metals and Alloys (UNS). B Grade P 5c shall have a titanium content of not less than 4 times the carbon content and not more than 0.70 %; or a columbium content of 8 to 10 times the carbon content.

Mechanical Requirements of ASTM A335

Each of our ASTM A335 pipes is a testament to mechanical excellence. Subjected to rigorous mechanical tests, these pipes exhibit stellar tensile strength, hardness, and other mechanical properties. We understand the dynamic needs of industries and thus ensure that our pipes withstand the test of time and performance.

Tensile Requirements
Mechanical PropertiesGrade
P1, P2P12P23P91P92, P911P122All Others
Tensile Strengthmin
ksi55607485909060
MPa380415510585620620415
Yield Strengthmin
ksi30325860645830
MPa205220400415440400205

Steel Grades in ASTM A335

We offer a diverse range of steel grades under the ASTM A335 standard, from P1 to P5, P9, P11, P12, to P91. Each grade has its unique characteristics, making them apt for various industries. For instance, our P11/P22 and P91/92 grades are favored by power stations, while P5 and P9 are preferred in the petrochemical sector. Trust in our expertise to guide you to the right grade for your needs.

Our Advantages

  1. Over 25 years of experience in pipeline production and installation.
  2. Comprehensive inspection equipment.
  3. Independent product serial numbers for traceability.
  4. Advanced production equipment – Seamer high-frequency welding machine from the United States.
  5. Complete qualifications – API 5L/API 5CT/FM/UL fire pipe certification, etc.
  6. Wide range of products – independently developed solar torque tubes, highly favored in the European market.
  7. Customers spread across the globe.
  8. Excellent after-sales service and sense of responsibility.

Application Scenarios

Our steel pipes are engineered to withstand high temperatures, corrosive environments, and varying pressures, ensuring reliability and safety in the complex petrochemical processes. 

Whether it’s transferring crude oil, natural gas, or chemical intermediates, the robustness and versatility of steel pipes make them indispensable components of the plant’s infrastructure, contributing to efficient production and maintenance of stringent safety standards.

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