ASTM A106 Gr. B A53 GR.B Seamless Black Steel Pipe

Brand Name:YUHONG SPECIAL STEEL
Certification:API, CE,ISO
Model Number:ASTM A106 Gr. B A53 GR.B Black Carbon Steel Seamless Pipe
Minimum Order Quantity:100KGS
Delivery Time:20-80
Payment Terms:L/C, T/T
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Location: Ningbo Zhejiang China
Address: 20TH FLOOR,NO.1 NEW WORLD BUILDING ,NO.1018 MINAN ROAD,YINZHOU DISTRICT, NINGBO CITY, ZHEJIANG PROVINCE, CHINA
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ASTM A106 Gr. B A53 GR.B Black Carbon Steel Seamless Pipe


We are one of the biggest projects pipeline products supplier in China. Our products contain steel pipe/tube,fittings, flanges. With development more than 20 years, we have accumulated a great many clients all around the world and Yuhong products also won the great praise among the customers.


Our main products: Stainless/Duplex/Nickel Alloy Pipe/Tube/Fitting/Flange:

1>.A:Stainless Steel Grade: TP304/304L/304H, TP310S/310H, TP316/316L/316Ti/316H, TP317L/317LN, TP321/321H, TP347/347H, NO8904(904L),

B:PH Stainless Steel:17-4PH(1.4542), 17-7PH(1.4568),15-7PH(1.4532)

C:Duplex Steel Grade: S31803(2205), S32750(2507), S32760, S32304, S32101, S31254(254Mo), 235Ma, UNS NO8926, NO8367.
D:Nickel Alloy Steel Grade:Hestalloy:C-276, C-4, C-22, C-2000, X, B-2, B-3, G-30, G-35. Monel:400,401, 404, R-405, K500.

Inconel:600, 601, 617, 625, 690, 718, 740, X-750. Incoloy:800, 800H, 800HT, 825, 840.

Pure Nickel:Ni-200, Ni-201, Ni-270. NS Alloy:Ns 1101, NS1102, NS1103,NS3105.

2>.Standards: ASTM A213, A249, A269, A312, A789,A790, B163,B167, B444, B677,... and ASME,DIN, EN, JIS, BS, GOST,...

3>.Out diameter sizes range: 0.5mm~650mm. Wall thickness:0.05mm~60mm. Max. length under 26 meters/PC.
4>.Seamless & welded, Solution Pickling/Bright Annealed / Polished.


ASTM A106 seamless pressure pipe (also known as ASME SA106 pipe) is commonly used in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and ships where the piping must transport fluids and gases that exhibit higher temperatures and pressure levels.


ASTM A106 Gr. B Black Carbon Steel Seamless Pipe Chemical Composition

GradeGrade AGrade BGrade C
Carbon max. %0.250.30*0.35*
*Manganese %0.27 to 0.93*0.29 to 1.06*0.29 to 1.06
Phosphorous, max. %0.0350.0350.035
Sulfur, max. %0.0350.0350.035
Silicon, min.%0.10.10.1
Chrome, max. %0.40.40.4
Copper, max. %0.40.40.4
Molybdenum, max. %0.150.150.15
Nickel, max. %0.40.40.4
Vanadium, max.%0.080.080.08

ASTM A106 Gr. B Black Carbon Steel Seamless Pipe Mechanical Properties

Seamless and ERWA53 Grade AA53 Grade B
Tensile Strength, min, psi48,00060,000
Yield Strength30,00035,000


ASTM A106 Gr. B Black Carbon Steel Seamless Pipe Physical Properties

Density at 20 °CModulus of elasticity kN/mm² atThermal conductivity at 20 C°Spec. thermal capacity at 20 C°Spec. electrical resistivity at 20 °C
Kg/dm³20 C°300 C°400 C°450 C°W/m KJ/kg KΩ mm²/m
7,85210192184179514610,20

Hot forming and Heat treatment

Hot formingHeat treatment
Temperature °CType of coolingNormalizing 1)Stress-relieving anneal 2)Type of cooling
1100 – 950Air890 – 950 °C600 – 650 °CAir

ASTM A106 Gr. B Black Carbon Steel Seamless Pipe Application Industries


  • Off-Shore Oil Drilling Companies
  • Power Generation
  • Petrochemicals
  • Gas Processing
  • Specialty Chemicals
  • Pharmaceuticals
  • Pharmaceutical Equipment
  • Chemical Equipment
  • Sea Water Equipment
  • Heat Exchangers
  • Condensers
  • Pulp and Paper Industry

ASTM A106 Gr. B Black Carbon Steel Seamless Pipe Test Certificates


  • EN 10204/3.1B,
  • Raw Materials Certificate
  • 100% Radiography Test Report
  • Third Party Inspection Report, etc

Material Testing:

  • Mechanical Testing Such as Tensile of Area
  • Hardness Test
  • Chemical Analysis – Spectro Analysis
  • Positive Material Identification – PMI Testing
  • Flattening Test
  • Micro and MacroTest
  • Pitting Resistance Test
  • Flaring Test
  • Intergranular Corrosion (IGC) Test

China ASTM A106 Gr. B A53 GR.B Seamless Black Steel Pipe supplier

ASTM A106 Gr. B A53 GR.B Seamless Black Steel Pipe

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