Renovation acceptance: check the quality of wallpaper

How to test the quality of wallpaper? The wallpaper must meet the following requirements:

1, wallpaper paste firmly, the same color surface, no air bubbles, empty drums, cracks, Alice, wrinkles and stains, no squinting glue marks.

2, the surface is smooth, no ripples. The wallpaper is closely linked to the hanging mirror, the veneer, and the baseboard, with no gaps. The yin and yang corners are vertical, with sharp corners, smooth glazing at the inside of the female corner, and no seams at the outside corners.

3, each piece of stitching should be horizontal and vertical, stitching pattern, pattern fit, not from the seam, not overlapping, 1.5 meters away from the wall at the front, no significant patchwork.

4, the surface is smooth, no ripples. The wallpaper is closely linked to the hanging mirror, the veneer, and the baseboard, with no gaps.

5, wallpaper edge straight and tidy, no paper hair, flying thorns.

6, there must be missing and delamination defects.

wallpaper

HANMAC is Manufacturer & Supplier of premium quality range of ANSI/ASME B16.9 Cap End .

We are highly experienced company in ANSI/ASME B16.9 Seamless Cap

Our ANSI/ASME B16.9 Pipe Cap are manufactured using quality material and go through a rigorous quality check at all stages of production to ensure quality.

Our Steel Cap are used in industries like energy industry, paper mills, textile industry, chemical industry, dairy plant, machinery fabrications, oil and gas industry, ships industry and other associated industries.

We have specialization to manufacture ANSI/ASME B16.9  Alloy Cap per customers` specifications. 

We welcome small quantity order.

Chemical Composition (%) 
Grade C Mn P S Si Cr Mo Ni
WP5 Class 1 & Class 3 ≤0.15 0.3-0.6 ≤0.04 ≤0.03 ≤0.5 4-6 0.44-0.65
WP9 Class 1 & Class 3 ≤0.15 0.3-0.6 ≤0.03 ≤0.03 ≤1 8-10 0.9-1.1
WP11 Class 1 0.05-0.15 0.3-0.6 ≤0.03 ≤0.03 0.5-1 1-5 0.44-0.65
WP11 Class 2 & Class 3 0.05-0.2 0.3-0.8 ≤0.04 ≤0.04 0.5-1 1-5 0.44-0.65
WP12 Class 1 & Class 2 0.05-0.2 0.3-0.8 ≤0.045 ≤0.045 ≤0.6 0.8-1.25 0.44-0.65
WP22 Class 1 & Class 3 0.05-0.15 0.3-0.6 ≤0.04 ≤0.04 ≤0.5 1.9-2.6 0.87-1.13
WP91 0.08-0.12 0.3-0.6 ≤0.02 ≤0.01 0.2-0.5 8-9.5 0.85-1.05 ≤0.4
WP911 0.09-0.13 0.3-0.6 ≤0.02 ≤0.01 0.1-0.5 8.5-10.5 0.9-1.1 ≤0.4
Mechanical properties 
Item Tensile Strength (MPa) Yield Strength (MPa) Elongation%
WP5 Class 1 415-585 ≥205 ≥20
WP5 Class 3 520-690 ≥310 ≥20
WP9 Class 1 415-585 ≥205 ≥20
WP9 Class 3 520-690 ≥310 ≥20
WP11 Class 1 415-585 ≥205 ≥20
WP11 Class 2  485-655 ≥275 ≥20
WP11  Class 3 520-690 ≥310 ≥20
WP12 Class 1  415-585 ≥220 ≥20
WP12 Class 2 485-655 ≥275 ≥20
WP22 Class 1 415-585 ≥205 ≥20
WP22 Class 3 520-690 ≥310 ≥20
WP91 585-760 ≥415 ≥20
WP911 620-840 ≥440 ≥20

Alloy Cap

Pipe Cap

Seamless Cap

Steel Cap

Cap End

End Cap

Butt Weld Cap

Alloy Steel Pipe Fitting

Alloy Cap

Alloy Cap,Pipe Cap,Seamless Cap,Steel Cap,Cap End

HEBEI HANMAC MACHINE CO., LTD. , http://www.chinahanmac.com