The New High-grade steel for plastic moulding

The New High-grade ste el for
plasti c moulding
最 新 发 展P 2 0级 高 强 度 塑 料 模 具 钢
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
G
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
7
-S
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
E
83
33
T
H
HR
8
3
C-
C
R
H
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS 738 EHT
GS06018
A steel that takes you into a new world of
design, quality and cost-efficiency
A targeted development to
meet increasing demands
Larger components, more complex moulds, even
more exacting surfaces the demands imposed on
the mould-making and plastics industries are
growing all the time. What they need is a steel that
is not only very hard, but also easy to machine. GS738 EHT is a new, high-tech steel developed on the
basis of our successful GS-311 and GS-738 grades
for plastic moulding and geared precisely to these
tougher demands.
Targeted modification of the composition and
additional measures in smelting and secondary
metallurgy lend it properties unlike those of any
steel before it.
GS-2738 EHT
1.2738
1.2311
Hardness/Strength
GS-738 EHT stands for excellent product quality
and dependable production.
GS-738 EHT offers major improvements, especially
for the construction of relatively large and
complicated moulds:
? Greatly improved through-hardenability
? Uniform hardness down to the core
? Good machinability
? Optimum suitability for polishing and texturing
Compared to the steel grades commonly used in the
past, it also displays substantially improved
weldability and greatly increased thermal
conductivity.
This new steel takes you into a new world of size,
design, product quality and, above all, dependable
production and cost-efficiency.
Hardness supplied:310-355HB
Strength supplied:1050-1200N/MM2
Advantages for the mould-maker
? One material for virtually all moulds
? Good machinability
? Optimum suitability for polishing and
texturing
? Improved weldability
市场追求的目标
超大型的塑料模具,复杂的型框,精准度高
的模面,都是市场不断更新的目标。模具制
造厂对模具钢材的要求也与时俱进,塑料模
具钢材不单要求更高硬度,也要求易加工。
GS-738 EHT 是最新开发的高科技产品,根
据 多 年 来 成 功 的GS311及GS738,再 加 上 新
的熔炼工艺,新的锻造概念,开发史无前例
的高质量预硬塑料模具钢材。
Advantages for the tool user
? Uniform hardness down to the core, resulting in
improved parting-line robustness of the mould
? Higher productivity due to improved thermal
conductivity
? Higher product quality due to improved polishing
and texturing properties
? Greater wear resistance due to supply of
hardnesses up to 355 HB
? Improved repair weldability
? Longer service life due to uniform hardness down
to the core
GS-738 ETH is the optimum material for virtually every
mould needed for injection moulding in the plastics industry.
Take advantage of competent advice, joint material
development and short delivery periods.
GS738 EHT 的优点可以例举如下:
? 高淬透性
? 高精光度及光蚀性
? 高平均切面硬度
? 易焊接
? 易切削
? 优良传热性能
+ +
+
+
+
+++++
++ ++
~ 2798
DIN-Code :
P20 mod.
AISI 代号
Chemical Composition 化学成份
(Typical analysis in %) (典型分析结果 %)
Delivery condition:
出厂状态:
max.hardness 33-38HRC
最高硬度:
Mn锰
1.5
C碳
0.28
Ni镍
1.0
Cr铬
1.3
Mo钼
+
Steels properties
钢材特性
Prehardened plastic mould steel, hardness in as-supplied condition
310-355 HB. Improved through-hardening in comparison with
GS-738 . Good machinability, polishability and weldability,
suitable for texturing.
预硬塑胶模钢,供货硬度一般为310-355HB,比
GS-738有所改进。良好的机械加工性能,良好的
抛光性能和良好的焊接性能。
Applications
用途
GS-738 EHT is particularly suitable for large plastic injection and
compression moulds with deep engravings and high demands on core
strength, e.g. for bumper bar moulds, moulds for tailgates, wings,
spoilers, instrument panels, TV housings and much mode.
特别适用于进行深加工和高强度需求的大型注射和
压缩塑胶模。例如缓冲架模具,后档板、机翼、
面板工具电视外壳等机壳模具。
Physical Properties
物 理性能
C 温度
Coefficient of thermal expansion
热膨胀系数 1
0-6x
m/
(
m.
k)
o
Thermal conductivity
热传率 W
/
(
m.
k)
o
20-100 oC 20-200 oC 20-300 oC 20-400 oC 20-500 oC 20-600 oC 20-700 oC
11.8
C 温度
12.5
13.1
o
14.1
o
14.3
o
20 C
350 C
700 C
38.0
37.4
33.0
at 20 oC room temperature 7.75 kg/dm 3
Density 密度
13.8
13.5
20 oC室温约值7.75kg/dm 3
Heat treatment 热处理
Soft annealing oC 软性退火
(
710-730 oC)
Hardening oC 硬化
(
880 oC)
Polymer, oil , salt bath
淬火剂,
油,
盐浴
O
Tempering
回火
Hardness HB 硬度
max. 最大值: 235
Furnace cooling
随炉缓冷
C
HRC
N/mm
2
HRC 硬度
N/mm 2
50
1670
100
200
300
400
500
600
700
50
50
49
47
44
37
24
1670
1670
1630
1530
1400
1175
835
Tempering diagram
70
66
62
Hardness in HRC
58
54
50
46
42
38
34
30
0
- 200
100
300 400 500 600 700 800
Tempering temperature in ℃
香港:香港新界沙田火炭黄竹洋街14-18号华生工业大厦地下一室
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浙江:浙江省宁海经济开发区新兴工业园 (315600)
电话:00852-26990339
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Print Date: 2006-04-18