Tel: +86-13962766136   E-mail: haitaizhuzao@vip.163.com
You are here: Home » Products » Other Products » Ex-factory Price Pre-machined Fore Boss Casting For Oil Tanker

loading

Share to:
facebook sharing button
twitter sharing button
line sharing button
wechat sharing button
linkedin sharing button
pinterest sharing button
sharethis sharing button

Ex-factory Price Pre-machined Fore Boss Casting For Oil Tanker

Material:SCW420,SC480 or according to related rules
Application: Shipbuilding
Weight: 3 to 150 tons
Status:pre-machined
Class certificate:ABS,CCS,NK,LR,DNV,RINA,BV,KR
Payment terms:T/T or L/C
Availability:
Quantity:

Material

Chemical composition
C
SiMnSPResidual Element
NiCrCuMo
less 0.23less0.60less1.60less 0.04Total less 0.80


Tensile Strength

σb

Yield Stress

σs

Elongation

δ

Specimen

Reduction of Area

Ψ

N/mm2

%

%

≥415

≥205

≥24

≥35


Prodution process

No.
Equipment Name
Quantity(Set)
1 Transformer substation 1
2 Full set of wooden molding equipment 10
3 Sodium silicate sand mix line 4
4 Alkaline phenol resin sand mix line 2
5 25 tons Electric arc furnace 1
6 50 tons Intermediate frequency furnace 2
7 120 tons Refining furnace 1
8 120 tons VD furnace 2
9 12m*9m*6m Heat treatment furnace 3
10 120 tons Large-scale shot blasting machine 1
11 150 tons Travelling crane 2
12 125 tons Travelling crane 3
13 200 tons Travelling crane 2
14 CNC gantry boring and milling machine 2
15 2.5m-10m Digital vertical lathe 16
16 Boring and milling machine 13
17 Horizontal lathe 3
18 Large dust removal equipment 7

1)The engineer will firstly prepare the technology and do a simulation before pouring.

Before production,there should be an approval drawing and letter from customer for related class.

1642741044(1)


2)We will make a pattern of the fore boss casting based on engineer's technology.

It will cost us around one week.

After that the engineer will check the dimension and make a record.

P11-1

3)Sand molding making will be made by experienced wokrers.

IMG_20180619_091321

4)Pouring and cooling.

There are one 8tons electrical arc furnace;

Two 50 tons medium frequency furnace;

One 120 tons refining furnace and one 120 tons VD furnace;

5)Clean the sand and cut the riser before heat treatment

6)Heat treatment will cost 7days( 4 days normalizing and 3 days tempring).

There are 8 heat treatment furances with max. one is 12m*9m*6m.

热处理炉

7)dimension check and draw a line for machining.

IMG_2136

8)Rough machining

IMG_20180712_074019

9)NDT withe qualified inspector

磁粉照

10)Welding repair if needed and tempering for stress relief

11)Final machining and NDT

12)Customers' inspection and packing

微信图片_201809261558423

2



About Haitai

P5

Haian Haitai Casting Co.,Ltd. is established in 2003. 

We supply large steel castings with low carbon or alloy steel from 3 tons to 150 tons per piece.

With a quick development,now we had supplied steel castings 6,000 tons per month.

There are three workshops for sand mold making,one workshop for machining and one for post procedure.

We have 9 class certificate:ABS,RINA,DNV,LR,KR,BV,CCS,NK and have cooperation with most of Chinese famous shipyards and some foreign shipyards.

Now we supply around 1000 tons marine castings for severals shipyards in Shanghai or Jinjiang.

In recent years,because of the huge demand of container vessel,we supply a lot of stern boss castings.

e2554e31e2fbb4a999e390f03546e6b



Testing Equipment

No.
Equipment Name Quantity(Set)
1 Sand analysis equipment 1
2 Impact sample low temperature meter 1
3 Direct reading spectrometer(OXFORD) 2
4 ONH analyzer 1
5 ZEISS metallurgical microscope 1
6 Pendulum impact tester 1
7 Microcomputer controlled electro-hydraulic servo universal test machine 5
8 Various hardness tester 4
9 Magnetic defect detector 5
10 Ultrasonic flaw detector(digital) 1
11 CX-52 Total station 1
12 Stylus roughness meter 1


We do the test according to diffrent production step,

such as chemical composition,UT,MT and mechanical property.

In 2021,Haitai inspection and testing center got approval from CNAS.


P6-3

P10-1

P10-3

Delivery

Our company is near to Shanghai port and we can supply different packing according to customers' specification.

110026


Previous: 
Next: 

WELCOME TO HAITAI

QUICK LINKS

PRODUCT CATEGORY

Copyright © Haian Haitai Casting Co.,Ltd. All rights reserved. Sitemap. Support By Leadong
FEEDBACK

CONTACT PERSON

Jing Junkang

CALL US

+86-13962766136