galvanized outdoor steel stairs - KD-YG-1115

Brand Name

Item Name:

Place of origin:

Material:

Grade Q345, equivalent to ASTM A572.

Section:

Certification:

Sand Blast:

QC:

Painting:

Welding Technology:

and Gas shielded welding.

Surface treatment:

Standard: ISO1461(1999),JIS H 8641-1999,ASTM A 123/A 123M-02

Welding Testing

Drilling, Cutting, Assembling, Welding, Rectification, Testing etc

Wooden case,steel pallet or other seaworthy package

More than 20 years welding experience

Material grade and performance of steel

1, Carbon structural steel: Q235, Q345, etc.

2, High-strength low-alloy structural steel

3, High quality carbon structural steel and alloy structural steel

4, Special purpose steel

Quality standard

1, Certification: ISO9001:2000, SGS Standard

2, Code for design of steel structure: GB 50017-2003

3, Technical code of cold-formed thin-wall steel structure: GB50018-2002

4, Load code for the design of building structures. GB 50009-2006

5, Construction quality acceptance of steel: GB50205-2001

6, Code for design, construction and acceptance of high strength for steel structure, JGJ82-91

7, Technical specification for welding of steel structure building: JGJ 81-2002

8, Technical specification for steel Structures of tall buildings: (JGJ99-98)

9, Specifications for processing of steel structure: DBJ 08-216-1995

10, Specifications for design and construction of steel panel: YBJ 216-88

The reason for choose each metal

• Workshop pre-install.
• Professional on-site guidance
• Ensure the product quality.
• Timely service and progress
• Production according welding rules a = 0.7 x thickness of web
• Continuous welding on both sides of each pieces
• Mark every beam on the bottom plate for being saw after being galvanized
• Send pictures to the buyer by mail during products being processed
• We have 17 years experience of designing and producing steel structure building
• Locating in the Shanghai, only need 1 hour by car, the land transport cost cheaper
• Our engineers with 20 years steel structure design experience and advanced design software
• and strict design design attitude

Surface Treatment

Hot dip galvanize

• Standard: JIS, DIN, ASTM B695-2000
• Hot dip galvanizing hole cutting good looking on surface of
• Galvanizing process:

Steel structural components →Degreasing →Rinsing→ Pickling →Rinsing →

Fluxing → Galvanizing →Quenching → (Passivation) → Inspecting →Finished Product

Paint

1.Primer paint one coat 20-30 um

2.Middle paint two coat 40-60 um

3.Finish paint one coat 20-30 um

Paint type: 1,red primer 2,zinc primer 3,Alkyd primer

Our Project--Stair