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Black Cold Drawn Seamless Steel Tube , Boilers Use Seamless Round Tubes

Place of Origin Jiangsu, China
Brand Name Hongbao
Certification TS16949,DNV,PED,ISO,TUV,LR
Model Number HBCDSST-1
Minimum Order Quantity 1 ton
Price Negotiable
Packaging Details seaworthy plywooden case packing.
Delivery Time within 50 days
Supply Ability 30000MT per year
Product Details
Material Low Carbon Steel,Carbon Steel,Carbon Alloy Steel,E355,E235,ST37.2 Origin Jiangsu,China
OD 4-383mm Thickness 0.5-18mm
Processing Seamless Package Seaworthy Packing.
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cold rolled steel tube


cold drawn seamless pipe

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Product Description

ASTM A 106 GrB Black Cold Drawn Carbon Seamless Steel Pipe Seamless Round Tubes




1 Standard Seamless Steel Pipe
2 Material

1. 10#, 20#, Q235B, Q345B, 45#

2. A106 GR.A, B; A53 GR.A,B; A179, A192,A333 GR.6
3. J55, K55, N80, L80, P110, ST37. ST37.2, ST52.3

3 Type: Seamless
4 Technique: Hot rolled & Cold drawn
5 OD: (1) Hot rolled: 32-600mm (ND: 1''-24'')
(2) Cold drawn: 6-200mm (ND: 1/8''-8'')
6 WT: (1) Hot rolled: 2.5-75mm
(2) Cold drawn: min thickness 0.25mm
7 Length: Fixed length ( expensive), DRL length ( cheap)
8 Surface treatment: (1) Varnish / Oil (red & black) painting,
(2) Zinc coated (hot dipped galvanized)
(3) Anti-corrosion powder coating, 2PP/2PE, 3PP/3PE, FBE (Brand: 3M, DoPont).
9 Usage: Above 450° high temperature
10 Application: (1) Seamless steel line pipe transporte oil & gas in petroleum industry
(2) Convey high temperature fluid in the fertilizer machine
(3) Boiler pipe, including over-heat pipe, boiling water pipe, locomotive smoke pipe (big & small)

(4) Heat-exchange pipe for refinery

























Chemical composition and mechanical property

A106: Chemical components and mechanical property
C Si Mn P,S Cu Ni Mo Cr V Tensile Strength(Mpa) Yield Elongation
ASTM B ≤0.30 ≥0.10 0.29-1.06 ≤0.035 ≤0.40 ≤0.40 ≤0.15 ≤0.40 ≤0.08 ≥415 ≥240 ≥30
A106 C ≤0.35 ≥0.10 0.29-1.06 ≤0.035 ≤0.40 ≤0.40 ≤0.15 ≤0.40        


for Boilers,Superheaters,
High-pressure Boilers,
Steam Boilers
Cold Condensers and High-Pressure Services,
High-Temperature Services for Boiler Constructions
Manufacture:Tubes are manufactured by seamless process and both hot finished and cold finished are applicable.

seamless boiler steel tube

heat exchanger boiler steel pipe
Heat treatment:Hot finished tubes need not be heat treated.Cold Finished tubes are heat treated after the final cold finishing pass at a temperature of 1200℉(650℃) or higher