Quality control for cap

Control Plan for Quanlity Test

 

Product

Cap

No.

HT-QC1-O9O1O1-09

Name

Cap

Dimension Standard

 

ASTM B 16.9-07

Material Standard

A 234 WPB

Original Material

Standard

A515/A  60

Material requst

Chemical Composition in%

C

Si

Mn

P

S

T≤25

25<T≤50

0.13-0.45

≤0.98

≤0.035

≤0.035

 

≤0.24

≤0.27

Mechanical Property

T S (Mpa)

E/L(S%)

YS(Mpa)

415-550

≥25

≥220

≥225

≥215

-

Material DOB in 3.1 form

manufacture & process

Process name

Process details& tools

Inspection method

Cutting

Gas cutting

10% casual inspection

Forming

Hot forming(850±25℃)

10% casual inspection

Rough truing

Hot process

10% casual inspection

End Bevelling

Beveling machine(37.5º ±2.5º)

10% casual inspection

Surface rough process

Rub surface defect

10% casual inspection

Quality inspectio

Surface  treatment

Sand blasting & painting

Surface quality accord with the 7th specification of ASTM B16.9

10% casual inspection

Size

According with the  6th specification of ASTM B16.9

100% casual inspection

Marking & packaging

Marking

Manufacturer name material heat No. size specification and so on

10% casual inspection

Painting

Acorrding with client’s requirment

10% casual inspection

Packaging

Fumigation-free wooden cases,pallet

10% casual inspection

Skecth  pictures

Drawed byLiu Xiao                        Approved byXu Yong

HAITIAN PIPE FITTINGS CO.,LTD , CHINA
Tel:86-317-5678500/5678501  Fax:86-317-5678502
E-mail:sales@pipefitting.cc