Construction Machinery High Wall Thickness Uniformity Cold-Drawn Hydraulic Black Seamless Steel Pipe

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Product Description

Basic Info.

Model NO.smls
TechniqueCold Drawn
MaterialCarbon Steel
Surface TreatmentPolished
UsagePipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Section ShapeRound
Finished Product ConditionBk, Bks, +C, +LC, +Sr, +a, +N
ToleranceTolerance ±0.10mm
Wall Thickness1-20mm (0.039 Inch - 0.79 Inch)
Outer Diameter10-120mm (0.39 Inch - 4.72 Inch)
Transport PackageSea Transportation
Specificationin Bundled, or Customized
OriginChina
HS Code7304319000
Production Capacity50000 Ton/Year

Product Description

Seamless Steel Pipe Overview
Technical Details
1. 21 Years of Custom Seamless Steel Pipe Expertise

Tailor round steel materials, mechanical properties, dimensional accuracy, and shapes to your exact needs, fully compliant with ASTM, DIN/EN, JIS, GOST, and other international standards.

2. Expert Assurance

Our team of 11+ dedicated R&D engineers brings over 30 years of combined metallurgical expertise. We reliably deliver both small-batch and large-scale orders, specializing in customized solutions for challenging alloy steel grades.

3. One-Stop Solutions

Our services extend to post-processing and deep customization. We provide full support for export orders, making us your one-stop shop for multifunctional steel pipe solutions.

Product Parameters

Material Type Standard Category Specific Grades / Details
Carbon Steel GB DT4, 10#, 20#, 35#, 45#, 55#, 20G, Q235B, Q235C
ASTM 1008, 1010, 1020, A105, A106 Gr.B, A36, 1026, 1035, 1045, 1055, SA179, SA192
DIN DC01, CK10, C10, ST35.8, C20, CK20, ST45.8, St37, S235JR, C26D, CK35, CK45, CK55, CF53
EN DC01, P235TR1, P195GH, P265TR2, E235
JIS S10C, STKM11A, STPT370, STB35, S20C, STKM12, STKM13, STPT410, STB42, SS400, S35C, S45C, S55C
GOST 08КП, 10, 20, Ст3сп, 25, 35, 45, 55
Alloy Steel GB 16Mn(Q345B), 20Cr, 40Cr, 15CrMo, 20CrMo, 28CrMo, 30CrMo, 35CrMo, 42CrMo, 20CrMnTi, 40MnMoV, 20Mn2, ZF6, 16MnCr5, 20MnCr5, 38Mn2V, 09CrCuSb(ND)
ASTM Gr·50, Gr·55, Gr·65, 5120, 5140, 4130, 4135, 4140, 8620, 4340, SAE 5120, 1524, 1340, 15B41, SAE5115, SCM23
DIN/EN E355, ST52, S355JR, S355JO, S355J2, S355NL, S420N, S420NL, S460NL, 20Cr4, 41Cr4, 13CrMo4-5, 20CrMo4, 25CrMo4, 34CrMo4, 42CrMo4, 20NiCrMo2, 34CrNiMo6, 20MnCr5, 22Mn6, 42Mn6, 42MnB4, 34MnB5, 37Mn5, 16MnCr5
JIS SCr22, SCr440, SCM415, SCM420, SCM430, SCM435, SCM440, SNCM220, SNCM439, SMnC420H, SMn420, SMn438
GOST 15Г2, 09Г2C/10Г2C1, 14Г2С, C355, 20Х, 40X, 15XM, 20ХМ, 30ХМ, 35ХМ, 38ХМ, 20ХНМ, 40ХНМ, 20ХГТ, 20Г2, 40Г2, 18ХГ, 20ХГМ
Further Processing Heat treatment (Quenching and Tempering), Cutting, Chamfer, Threading, Inner/Outer Diameter Lathe, Surface Shot Blasting, Laser Marking
Product Specifications Visual

Production Process

Production Process 1
Production Process 2

Company Profile

Facility Overview

Our Advantages

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Certifications

Compliance Certificates

Exhibition & Packaging

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Frequently Asked Questions

What types of steel materials can be customized?
We specialize in Carbon Steel, Alloy Steel, and Free Cutting Steel, compliant with ASTM, DIN/EN, JIS, and GOST standards.
What is the standard tolerance for your seamless steel pipes?
Our precision cold-drawn pipes maintain a strict tolerance of ±0.10mm.
What are the available size ranges for outer diameter and wall thickness?
We offer outer diameters from 10mm to 120mm (0.39" - 4.72") and wall thicknesses from 1mm to 20mm (0.039" - 0.79").
What secondary processing services do you provide?
Our one-stop solutions include heat treatment (quenching/tempering), precision cutting, chamfering, threading, lathe work, shot blasting, and laser marking.
In what conditions are the finished products delivered?
Products can be delivered in various conditions including BK, BKS, +C, +LC, +Sr, +a, and +N, depending on your mechanical property requirements.
What industries commonly use your hydraulic seamless steel pipes?
They are widely used in pipeline transport, boiler systems, hydraulic/automobile piping, chemical industry, machinery, and construction machinery.

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