Valid

GB/T 30870-2014Classification of special dense shaped refractory products (English PDF)

特种致密定形耐火制品分类

Preview PDF

This is a limited preview

Buy now to download the full PDF (12 pages)

Need quotation for your management?

Get a formal quotation for GB/T 30870-2014 in 30 minutes.

Issued by

General Administration of Quality Supervision, Inspection and Quarantine

Level / Type

National · Recommended

Issue date

July 24, 2014

Implementation date

February 1, 2015

Scope

GB/T 30870-2014 is the English-translated version of 特种致密定形耐火制品分类.

GB/T 30870-2014 — This Standard specifies the classification and designation of dense shaped refractory products of special composition including oxide products, oxide and non-oxide products, non-oxide silicon carbide or carbon-based products, and further special products which are only designated but not classified, for example, non-oxide products, such as boride, nitride or further combinations of the series listed above.

Found what you need?

Document preview — GB/T 30870-2014

National Standard of the People's Republic of China

ICS: 81.080
Classification: Q 40

Issued by: General Administration of Quality Supervision, Inspection and Quarantine

Foreword...3
1 Scope...4
2 Classification principle...4
3 Classification...4
4 Other refractory products...12
5 Designation of a special product...12

Foreword

This Standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This Standard uses translation method and identically adopts ISO 10081-

4.2007 Classification of dense shaped refractory products - Part 4. Special

products.

This Standard makes following editorial modification.

- deleted Bibliography.

This Standard was proposed by and shall be under the jurisdiction of National

Technical Committee on Refractory materials of Standardization Administration

of China (SAC/TC 193).

The drafting organizations of this Standard. Metallurgical Industry Information

Standards Institute, Sinosteel Luoyang Refractories Research Institute Co., Ltd.,

Ruitai Technology Co., Ltd., Zhejiang Zili Company Limited.

Main drafters of this Standard. Qiu Jinhui, Gao Jianping, Yuan Lin, Peng Xigao,

Wang Jiangwei, Cheng Jie, Wang Xiaoli, Zhao Yi.

Classification of special dense shaped refractory

products

1 Scope

This Standard specifies the classification and designation of dense shaped

refractory products of special composition including oxide products, oxide and

non-oxide products, non-oxide silicon carbide or carbon-based products, and

further special products which are only designated but not classified, for

example, non-oxide products, such as boride, nitride or further combinations of

the series listed above.

2 Classification principle

Dense shaped special products shall be classified according to the following six

criteria.

a) the type of product;

b) the group determined by the content of its main chemical component(s);

c) the principal raw material(s);

d) the state of the raw materials;

e) the nature of the bond;

f) any post-treatment;

3 Classification

3.1 Type of product

The following types of dense shaped refractory special products shall be

classified by chemical analysis as shown in 3.2.

a) alumina-chromia (ACr);

b) chromia (Cr);

c) alumina-chromia-zirconia (ACrZ);

designation of dense shaped refractory products of the mentioned series.

EXAMPLES Some examples of designations are as follows.

- alumina-chromia products in the group ACr70/5, based on synthetic

sintered corundum and chromia with an oxide ceramic bond;

- alumina-zirconia-silica products of the group AZS15, based on synthetic

sintered corundum and naturally occurring zircon with an oxide ceramic

bond;

- alumina-carbon products with antioxidant additives of the group AC80/5A,

based on naturally occurring sintered bauxite with an organic chemical

bond, with tempering;

- silicon carbide products of the group SiC70, based on synthetic silicon

carbide with silicon nitride bond;

- carbon product of the group C60, based on synthetic graphite with an

organic chemical bond formed at higher temperatures.

......

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 12 pages — is available in the English PDF.

How to Download GB/T 30870-2014

1
Add to cart
Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.
2
Checkout
Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).
3
Instant delivery (0–9 sec)
Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.
4
Invoice included
A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.