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Structural Steel Pipe

Structural Steel Pipe. A wide range of applications rely on structural steel pipe for strength and stability. Gnee steel supply welded and seamless pipe for structural applications to customers in all industries. As a leading steel pipe supplier, Gnee steel offers a large inventory of pipe and tubing sizes from 1/8” NPS to 48” NPS.


Category:

Seamless Pipe

Keywords:

Structural Steel Pipe

PRODUCT INTRODUCTION

Product introduction

Structural Steel Pipe

Pipe Type: Structural Pipe, Structural Seamless Pipe, Seamless Structural Pipe
Application: In Structural Engineering and Construction Industry

Specification: OD: 1/8'' ~ 26'' (10.3 ~ 660mm)

                          WT: SCH 10 ~ 160, SCH STD, SCH XS, SCH XXS

                          LENGTH: Fixed Length (5.8/6/11.8/12mtr), SRL, DRL

Standard: ASTM A53/A252/A500/A501, JIS G3444, EN 10210/10219

Ends: Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends

Surface: Bare, Lightly Oiled, Black/Red/Yellow Painting, Zinc/Anti-corrosive Coating

Packing: Bundled/In Bulk, Plastic Caps Plugged, Waterproof Paper Wrapped

 Specification of Structural Steel Pipe 

API 5L/ASTM A106 GR.B, Structural Steel Pipe
公称通径
DN
外径OD(mm)SCH40(6m/5.8m)SCH40(6m/5.8m)SCH40(6m/5.8m)
壁厚WT壁厚WT壁厚WT
(mm)(mm)(mm)
1/4''13.72.243.02/
3/8''17.12.313.2/
1/2''21.32.773.734.78
3/4''26.72.873.915.56
1''33.43.384.556.35
1-1/4''42.23.564.856.35
1-1/2''48.33.685.087.14
2''60.33.915.548.74
2-1/2''735.167.019.53
3''88.95.497.6211.13
3-1/2''101.65.748.08/
4''114.36.028.5613.49
5''141.36.559.5315.88
6''168.37.1110.9718.26
8''219.18.1812.723.01
10''2739.2715.0928.58
12''323.810.3117.4833.32
14''355.69.5311.1319.05
16''406.49.5312.721.44
18''4579.5314.2723.83
20''5089.5315.0926.19
24''6109.5317.4830.96

Technical data

Structural Steel Pipe Chemical Composition and Mechanical Properties 

StandardGradeChemical Composition (%)Mechanical Properties
ASTM A53CSiMnPSTensile STrength(Mpa)Yield STrength(Mpa) 
A≤0.25-≤0.95≤0.05≤0.06≥330≥205 
B≤0.30-≤1.2≤0.05≤0.06≥415≥240 
ASTM A106A≤0.30≥0.100.29-1.06≤0.035≤0.035≥415≥240 
B≤0.35≥0.100.29-1.06≤0.035≤0.035≥485≥275 
ASTM A179A1790.06-0.18-0.27-0.63≤0.035≤0.035≥325≥180 
ASTM A192A1920.06-0.18≤0.250.27-0.63≤0.035≤0.035≥325≥180 
API 5L PSL1A0.22-0.900.0300.030≥331≥207 
B0.28-1.200.0300.030≥414≥241 
X420.28-1.300.0300.030≥414≥290 
X460.28-1.400.0300.030≥434≥317 
X520.28-1.400.0300.030≥455≥359 
X560.28-1.400.0300.030≥490≥386 
X600.28-1.400.0300.030≥517≥448 
X650.28-1.400.0300.030≥531≥448 
X700.28-1.400.0300.030≥565≥483 
API 5L PSL2B0.24-1.200.0250.015≥414≥241 
X420.24-1.300.0250.015≥414≥290 
X460.24-1.400.0250.015≥434≥317 
X520.24-1.400.0250.015≥455≥359 
X560.24-1.400.0250.015≥490≥386 
X600.24-1.400.0250.015≥517≥414 
X650.24-1.400.0250.015≥531≥448 
X700.24-1.400.0250.015≥565≥483 
X800.24-1.400.0250.015≥621≥552 


Structural Steel Pipe Chemical Composition and Mechanical Properties 

StandardGradeChemical CompositionMechanical Properties
CSiMnPSCrNiCuTensile Strength(Mpa)Yield Strength(Mpa)Elongation(%)
GB/T8163100.07-0.140.17-0.370.35-0.65≤0.035≤0.035≤0.15≤0.25≤0.25335-457≥205≥24
200.17-0.240.17-0.370.35-0.65≤0.035≤0.035≤0.25≤0.25≤0.25410-550≥245≥20
Q3450.12-0.200.20-0.551.20-1.60≤0.045≤0.045---490-665≥325≥21


Structural Steel Pipe Tolerance 

Pipe typesPipe Szie(mm)Tolerances
Hot rolledODAll±1% (min ±0.50mm)
WTAll+15%, -12.5%
Cold drawnOD6~10±0.20mm
10~30±0.40mm
30~50±0.45mm
>50±1%
WT≤1±0.15mm
>1~3+15% -10%
>3+12.5% -10%


Structural Steel Pipe End 

Plain EndWall Thickness less than 0.5 inch, including SCH STD & SCH XS
Plain End (Square Cut)Wall Thickness over 0.5 inch, including SCH XXS
Beveled EndWall Thickness less than 0.5 inch, including SCH STD & SCH XS 
CouplingsOutside Diameter equal or less than 2''
Thread ProtectionOutside Diameter over 4 inch

 

FACTORY APPEARANCE

Shandong Zhenghua Iron and Steel Co., Ltd. is an enterprise mainly engaged in ferrous metal smelting and rolling processing industry. Our main products include carbon steel plates, carbon steel coils, carbon steel pipes, carbon steel rods, stainless steel plates, stainless steel coils, stainless steel pipes, color-coated coils, color tiles, galvanized sheets, galvanized coils, galvanized roofing, galvanized zinc ,ETC.

Factory Appearance

Factory Appearance

Factory Appearance

Factory Appearance

Factory Appearance

Factory Appearance

Factory Appearance

Factory Appearance

Factory Appearance

Factory Appearance

Factory Appearance

Factory Appearance

PACKAGING AND SHIPPING

With its comprehensive product range, ample inventory, superior quality, affordable prices, fast delivery, and excellent after-sales service, our products sell well in the domestic market and are exported to countries and regions such as South Korea, Japan, Russia, Germany, the United Kingdom, Austria, Czech Republic, Hungary, Netherlands, Slovenia, Bulgaria, Egypt, Saudi Arabia, Iran, Kuwait, United Arab Emirates, Turkey, Israel, Syria, Lebanon, Jordan, Yemen, Cyprus, Philippines, Vietnam, and Malaysia.

Packing And Shipping

WHY CHOOSE US

Factory Strength

Self-owned standardized factory with full automatic production lines, stable capacity for on-time delivery

Sufficient Stock

Massive ready stock of various steel with complete specifications, fast shipment & short lead time

Custom Processing

Custom size, material and surface treatment available, cutting & bending processing for all project demands

Strict Quality Control

Multi-stage strict inspection, MTC provided for each batch, third-party SGS/BV testing supported

Wide Application

Widely applied in construction, machinery, shipbuilding, pipeline, new energy and global projects

One-Stop Service

Professional foreign trade team, fast quotation, reliable after-sales warranty, one-stop worry-free service

Service Industry


SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Construction

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Warehouse & Logistics

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Oil & Gas

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Bridges & Tunnels

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Cement

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Chemical

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Grain

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Marine

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Mining

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Ports & Shipyards

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Power

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Pulp & Paper

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Metal & Steel

SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.

Wind Power

HOW TO GET YOUR PRODUCT

01

Customer inquiry

Customers contact us via website, email,social media, or online platforms to discussproduct requirements,customizationrequests,or wholesale inguiries. We supportmultiple languages and promise a promptresponse within 24 hours

02

Requirement Confirmation

We will discuss the reguirements with thecustomer in detail, covering product models,materials,specifications, quantities, packagingoptions, and lead times. We will provideprofessional advice and arrange sample confirmation if needed.

03

Quotation & Sampling

We will provide a quotation based oncustomer requirements.lf customization orbranding is needed, we can offer samplingservices to confirm all details.The sample leadtime is 3 -7 days, and we supportcustomization of logo, packaging, materials,etc.

04

Order Confirmation & Payment

Once the order is confirmed, a purchasecontract is signed, and the customer pays thedeposit (usually 30%). We will then arrangeproduction.We support multiple paymentoptions, including T/T, PayPal, L/C, etc. Thecontract terms are clear and transparent

05

Production & Quality Control

Production is arranged according to theorder. Our team will follow up theprocess, provide progress updates, andconduct full inspection or samplinginspection after completion. We have aprofessional QC team and support third-partyinspection.

06

Packaging & Shipping

We will provide standard or customizedpackaging according to clientrequirements,arrange logistics, andprovide shipping and customs clearancedocuments. We offer various shippingoptions, including sea, air, or express,and support logistics tracking

07

After-sales Consultation

After receiving the product, customerscan consult us on product usage. We willhelp customers fully understandproduct functions and operating methods.

08

After-sales Repair & Warranty

A professional team provides technical support and problem-solving solutions, with efficient and considerate after-sales service, ensuring your peace of mind.

GLOBAL NETWORK

To provide better service for customers

Service comes from300customers, from45countries

With over 20 years of industry experience and strong production capacity, we have significantly narrowed the quality gap between domestic products and foreign brands. Our products not only sell well in over 30 provinces and cities across China, but are also exported to dozens of countries and regions in Europe, America, Africa, Southeast Asia, and the Middle East. We always adhere to the principles of quality as the foundation, reputation for survival, and enthusiastic service to our customers. We are willing to work hand in hand with new and old customers around the world to create a better future! We sincerely welcome you to visit our company!

Cooperate
SHANDONG ZHENGHUA IRON AND STEEL CO., LTD.
Customer reviews

Customer reviews

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We purchased hot dip galvanized steel angle bars and C channel steel for solar bracket projects. The galvanized layer is thick and even, strong anti-corrosion performance suitable for coastal humid areas. All steel meets ASTM standard with complete MTC documents. The factory can produce customized length according to our drawing requirements. The sales team communicates patiently about loading plan to save container space. Goods arrived without deformation after one month sea transportation. Delivery time is always on schedule, we will keep long-term cooperation for our solar projects.
Customer reviews

Customer reviews

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Large order of color coated steel coils and corrugated sheets arrived safely. Coating adhesion is strong, no peeling or color difference. Delivery schedule is always on time even during peak shipping season. The team can adjust production schedule to match our tight project deadline. Payment terms are flexible, communication smooth all the time. Best steel supplier we cooperate with in China.
Customer reviews

Customer reviews

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Ordered 304 stainless steel coils and structural steel profiles for machinery production. Material tensile strength and elongation fully meet EU industry norms. Custom slitting & cutting service is flexible, they can process special sizes for small batches. Price is much better than local European metal suppliers. After-sales support is great; technical team gives professional processing advice when we have machining problems. 100% satisfied, will introduce to our industry friends.

FAQ

Can third-party inspection be arranged?

Yes, clients can choose to have third-party inspections before shipment; associated costs can be negotiated.

Is there a warranty or after-sales service?

Steel is a durable material, so standard warranty does not apply. However, any issues during transportation or delivery will be handled promptly.

Can you provide custom sizes or packaging?

Yes, we can offer custom cutting, heat treatment, surface treatment, and special packaging according to client requirements.

How can I contact you?

You can reach us via online inquiry, email, phone, or WhatsApp/WeChat.

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