Qingdao Tony Machinery & Equipment Co.,Ltd.
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LOCATION: Products > Steel Construction > Customization steel construction
Customization Steel Construction

From carbon steel to stainless steel, we have a large number of well-qualified and experienced welders who work according to internationally recognized standards, including: AWS D1.1, AS1554, ASME IX & EN1090.

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                                           AS/NZS Welder Qualification                     GB Welder Qualification                             AWS Welder Qualification

The facilities are advanced & comprehensive, including:

CNC Flame/Plasma Cutting Machine; Plate Shearing Machine; Plate Rolling Machine; Sawing Machine; H-Steel Straightening/Assembly machine; CNC Drilling Machine; Lathe; Planomiller; Punching Machine; Bending Machine; Press Machine; Automatic Pipe Bender; Automatic Submerged arc welding machine; Gas Shielded welding machine; Shot Blasting Machine.


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Separated blasting and painting room ensure pure steel structure bear harsh environment.

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Our strict quality control:

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Each stage, we do the in-house inspection as per international codes & standards.

Code & Standard for Raw Material Inspection

GB/T 709-2006 : Size , Appearance, Weight and Allowable Deviation of Hot Rolled Steel Plate and Steel Strip

GB/T 1591-2008 : Low-alloy High-tensile Structural Steel

GB/T 700-2006 : Carbon Structural Steel

GB/T706-2008 : Hot Rolled Section Steel

GBT 4237-2007: Hot Rolled Stainless Steel Plate and Steel strip

GB 3280-2007: Cold Rolled Stainless Steel Plate and Steel Strip


Code & Standard for Welding/Welder,Test/Assessment

1. AWS D1.1D1.1M-2010: Structural Welding Code - Steel

2. ASME Code 2010

3. AS NZS 1554.1-2014: Structural Steel Welding Part 1 --  Welding of Steel Structures

4. Bureau Veritas Rules for the Classification of Steel Rules

5. GB 50205-2001: Steel Structure Engineering Construction Quality Acceptance Specification


Codes & Standards for Nondestructive Inspection

1. AS 1171-1998:  Non-destructive testing - Magnetic particle testing of ferromagnetic products, components and structures

2. AS 2207-2007:  Non-destructive testing – Ultrasonic testing for fusion welded joints in carbon and low alloy  steel

3. AS 1710 – 2007:  Non-destructive testing – Ultrasonic testing of carbon and low alloy steel plate and universal sections – test methods and quality classification

4. ASTM E709-2001:  Magnetic particle examination 1

5. JBT 6061-2007:  Non-destructive testing-Magnetic particle testing of welds

6. GB 11345 – 89:   Method for manual ultrasonic testing and classification of testing results for ferritic steel welds

7. JB/T4730.3 2005:  Non-destructive testing for pressure equipment -- ultrasonic testing


Surface Preparation and Painting Specification

1. ISO 8501-1-2007: Preparation of steel substrates before application of paints and related products – Visual assessment of surface cleanliness Part 1. rust grade and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings.

2. ISO 8501-3-2007: Preparation of steel substrates before application of paints and related products – Visual assessment of surface cleanliness Part 3. Preparation grade of welds, cut edges and other areas with surface imperfections

3. SSPC-PA2:  The society for protective coating – paint application standard No.2 measurement of dry coating thickness with magnetic gages

4. SSPC-VIS1-2004: Guide and reference photographs for steel surface prepared by dry abrasive blast cleaning.

The Third Party Inspection

 The well-known foreign inspection companies we have cooperated with:

-- GL Germanischer Lloyd, Bureau Veritas

-- SGS-CSTC Standards Technical Services Co.,Ltd

--  Moody International (Intertek Group INTERTEK UK)

Qingdao Tony Machinery & Equipment Co.,Ltd.
Add: Room 3D, Area A, Fullhope plaza, No. 12 Hongkong Mid-Road, Qingdao, China.
Tel: 0086 532 85710072
Fax: 0086 532 85762469
Post code: 266071
Website: www.tonymachinery.com.cn
E-mail: sales@tonymachienry.com.cn